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---
title: Build and release a macOS app
description: How to release a Flutter app to the macOS App Store.
short-title: macOS
---
This guide provides a step-by-step walkthrough of releasing a
Flutter app to the [App Store][appstore].
## Preliminaries
Before beginning the process of releasing your app,
ensure that it meets
Apple's [App Review Guidelines][appreview].
In order to publish your app to the App Store,
you must first enroll in the
[Apple Developer Program][devprogram].
You can read more about the various
membership options in Apple's
[Choosing a Membership][devprogram_membership] guide.
## Register your app on App Store Connect
Manage your app's life cycle on
[App Store Connect][appstoreconnect_login] (formerly iTunes Connect).
You define your app name and description, add screenshots,
set pricing, and manage releases to the App Store and TestFlight.
Registering your app involves two steps: registering a unique
Bundle ID, and creating an application record on App Store Connect.
For a detailed overview of App Store Connect, see the
[App Store Connect][appstoreconnect_guide] guide.
### Register a Bundle ID
Every macOS application is associated with a Bundle ID,
a unique identifier registered with Apple.
To register a Bundle ID for your app, follow these steps:
1. Open the [App IDs][devportal_appids] page of your developer account.
1. Click **+** to create a new Bundle ID.
1. Enter an app name, select **Explicit App ID**, and enter an ID.
1. Select the services your app uses, then click **Continue**.
1. On the next page, confirm the details and click **Register**
to register your Bundle ID.
### Create an application record on App Store Connect
Register your app on App Store Connect:
1. Open [App Store Connect][appstoreconnect_login] in your browser.
1. On the App Store Connect landing page, click **My Apps**.
1. Click **+** in the top-left corner of the My Apps page,
then select **New App**.
1. Fill in your app details in the form that appears.
In the Platforms section, ensure that macOS is checked.
Since Flutter does not currently support tvOS,
leave that checkbox unchecked. Click **Create**.
1. Navigate to the application details for your app and select
**App Information** from the sidebar.
1. In the General Information section, select the Bundle ID
you registered in the preceding step.
For a detailed overview,
see [Add an app to your account][appstoreconnect_guide_register].
## Review Xcode project settings
This step covers reviewing the most important settings
in the Xcode workspace.
For detailed procedures and descriptions, see
[Prepare for app distribution][distributionguide_config].
Navigate to your target's settings in Xcode:
1. In Xcode, open `Runner.xcworkspace` in your app's `macos` folder.
1. To view your app's settings, select the **Runner** project in the Xcode
project navigator. Then, in the main view sidebar, select the **Runner**
target.
1. Select the **General** tab.
Verify the most important settings.
In the **Identity** section:
`App Category`
: The app category under which your app will be listed on the Mac App Store. This cannot be none.
`Bundle Identifier`
: The App ID you registered on App Store Connect.
In the **Deployment info** section:
`Deployment Target`
: The minimum macOS version that your app supports. Flutter supports macOS 10.14 and later.
In the **Signing & Capabilities** section:
`Automatically manage signing`
: Whether Xcode should automatically manage app signing
and provisioning. This is set `true` by default, which should
be sufficient for most apps. For more complex scenarios,
see the [Code Signing Guide][codesigning_guide].
`Team`
: Select the team associated with your registered Apple Developer
account. If required, select **Add Account...**,
then update this setting.
The **General** tab of your project settings should resemble
the following:
{:width="100%"}
For a detailed overview of app signing, see
[Create, export, and delete signing certificates][appsigning].
## Configuring the app's name, bundle identifier and copyright
The configuration for the product identifiers are centralized
in `macos/Runner/Configs/AppInfo.xcconfig`. For the app's name,
set `PRODUCT_NAME`, for the copyright set `PRODUCT_COPYRIGHT`,
and finally set `PRODUCT_BUNDLE_IDENTIFIER` for the app's
bundle identifier.
## Updating the app's version number
The default version number of the app is `1.0.0`.
To update it, navigate to the `pubspec.yaml` file
and update the following line:
`version: 1.0.0+1`
The version number is three numbers separated by dots,
such as `1.0.0` in the example above, followed by an optional
build number such as `1` in the example above, separated by a `+`.
Both the version and the build number can be overridden in Flutter's
build by specifying `--build-name` and `--build-number`,
respectively.
In macOS, `build-name` uses `CFBundleShortVersionString`
while `build-number` uses `CFBundleVersion`.
Read more about iOS versioning at [Core Foundation Keys][]
on the Apple Developer's site.
## Add an app icon
When a new Flutter app is created, a placeholder icon set is created.
This step covers replacing these placeholder icons with your
app's icons:
1. Review the [macOS App Icon][appicon] guidelines.
1. In the Xcode project navigator, select `Assets.xcassets` in the
`Runner` folder. Update the placeholder icons with your own app icons.
1. Verify the icon has been replaced by running your app using
`flutter run -d macos`.
## Create a build archive with Xcode
This step covers creating a build archive and uploading
your build to App Store Connect using Xcode.
During development, you've been building, debugging, and testing
with _debug_ builds. When you're ready to ship your app to users
on the App Store or TestFlight, you need to prepare a _release_ build.
At this point, you might consider [obfuscating your Dart code][]
to make it more difficult to reverse engineer. Obfuscating
your code involves adding a couple flags to your build command.
In Xcode, configure the app version and build:
1. Open `Runner.xcworkspace` in your app's `macos` folder. To do this from
the command line, run the following command from the base directory of your
application project.
```console
open macos/Runner.xcworkspace
```
1. Select **Runner** in the Xcode project navigator, then select the
**Runner** target in the settings view sidebar.
1. In the Identity section, update the **Version** to the user-facing
version number you wish to publish.
1. In the Identity section, update the **Build** identifier to a unique
build number used to track this build on App Store Connect.
Each upload requires a unique build number.
Finally, create a build archive and upload it to App Store Connect:
1. Create a release Archive of your application. From the base directory of
your application project, run the following.
```console
flutter build macos
```
1. Open Xcode and select **Product > Archive** to open the archive created
in the previous step.
1. Click the **Validate App** button. If any issues are reported,
address them and produce another build. You can reuse the same
build ID until you upload an archive.
1. After the archive has been successfully validated, click
**Distribute App**. You can follow the status of your build in the
Activities tab of your app's details page on
[App Store Connect][appstoreconnect_login].
You should receive an email within 30 minutes notifying you that
your build has been validated and is available to release to testers
on TestFlight. At this point you can choose whether to release
on TestFlight, or go ahead and release your app to the App Store.
For more details, see
[Upload an app to App Store Connect][distributionguide_upload].
## Create a build archive with Codemagic CLI tools
This step covers creating a build archive and uploading
your build to App Store Connect using Flutter build commands
and [Codemagic CLI Tools][codemagic_cli_tools] executed in a terminal
in the Flutter project directory.
<ol markdown="1">
<li markdown="1">
Install the Codemagic CLI tools:
```bash
pip3 install codemagic-cli-tools
```
</li>
<li markdown="1">
You'll need to generate an [App Store Connect API Key][appstoreconnect_api_key]
with App Manager access to automate operations with App Store Connect. To make
subsequent commands more concise, set the following environment variables from
the new key: issuer id, key id, and API key file.
```bash
export APP_STORE_CONNECT_ISSUER_ID=aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee
export APP_STORE_CONNECT_KEY_IDENTIFIER=ABC1234567
export APP_STORE_CONNECT_PRIVATE_KEY=`cat /path/to/api/key/AuthKey_XXXYYYZZZ.p8`
```
</li>
<li markdown="1">
You need to export or create a Mac App Distribution and a Mac Installer
Distribution certificate to perform code signing and package a build archive.
If you have existing [certificates][devportal_certificates], you can export the
private keys by executing the following command for each certificate:
```bash
openssl pkcs12 -in <certificate_name>.p12 -nodes -nocerts | openssl rsa -out cert_key
```
Or you can create a new private key by executing the following command:
```bash
ssh-keygen -t rsa -b 2048 -m PEM -f cert_key -q -N ""
```
Later, you can have CLI tools automatically create a new Mac App Distribution and
Mac Installer Distribution certificate. You can use the same private key for
each new certificate.
</li>
<li markdown="1">
Fetch the code signing files from App Store Connect:
```bash
app-store-connect fetch-signing-files YOUR.APP.BUNDLE_ID \
--platform MAC_OS \
--type MAC_APP_STORE \
--certificate-key=@file:/path/to/cert_key \
--create
```
Where `cert_key` is either your exported Mac App Distribution certificate private key
or a new private key which automatically generates a new certificate.
</li>
<li markdown="1">
If you do not have a Mac Installer Distribution certificate,
you can create a new certificate by executing the following:
```bash
app-store-connect create-certificate \
--type MAC_INSTALLER_DISTRIBUTION \
--certificate-key=@file:/path/to/cert_key \
--save
```
Use `cert_key` of the private key you created earlier.
</li>
<li markdown="1">
Fetch the Mac Installer Distribution certificates:
```bash
app-store-connect list-certificates \
--type MAC_INSTALLER_DISTRIBUTION \
--certificate-key=@file:/path/to/cert_key \
--save
```
</li>
<li markdown="1">
Set up a new temporary keychain to be used for code signing:
```bash
keychain initialize
```
{{site.alert.secondary}}
**Restore Login Keychain!**
After running `keychain initialize` you **must** run the following:<br>
`keychain use-login`
This sets your login keychain as the default to avoid potential
authentication issues with apps on your machine.
{{site.alert.end}}
</li>
<li markdown="1">
Now add the fetched certificates to your keychain:
```bash
keychain add-certificates
```
</li>
<li markdown="1">
Update the Xcode project settings to use fetched code signing profiles:
```bash
xcode-project use-profiles
```
</li>
<li markdown="1">
Install Flutter dependencies:
```bash
flutter packages pub get
```
</li>
<li markdown="1">
Install CocoaPods dependencies:
```bash
find . -name "Podfile" -execdir pod install \;
```
</li>
<li markdown="1">
Build the Flutter macOS project:
```bash
flutter build macos --release
```
</li>
<li markdown="1">
Package the app:
```bash
APP_NAME=$(find $(pwd) -name "*.app")
PACKAGE_NAME=$(basename "$APP_NAME" .app).pkg
xcrun productbuild --component "$APP_NAME" /Applications/ unsigned.pkg
INSTALLER_CERT_NAME=$(keychain list-certificates \
| jq '[.[]
| select(.common_name
| contains("Mac Developer Installer"))
| .common_name][0]' \
| xargs)
xcrun productsign --sign "$INSTALLER_CERT_NAME" unsigned.pkg "$PACKAGE_NAME"
rm -f unsigned.pkg
```
</li>
<li markdown="1">
Publish the packaged app to App Store Connect:
```bash
app-store-connect publish \
--path "$PACKAGE_NAME"
```
</li>
<li markdown="1">
As mentioned earlier, don't forget to set your login keychain
as the default to avoid authentication issues
with apps on your machine:
```bash
keychain use-login
```
</li>
</ol>
## Release your app on TestFlight
[TestFlight][] allows developers to push their apps
to internal and external testers. This optional step
covers releasing your build on TestFlight.
1. Navigate to the TestFlight tab of your app's application
details page on [App Store Connect][appstoreconnect_login].
1. Select **Internal Testing** in the sidebar.
1. Select the build to publish to testers, then click **Save**.
1. Add the email addresses of any internal testers.
You can add additional internal users in the **Users and Roles**
page of App Store Connect,
available from the dropdown menu at the top of the page.
## Distribute to registered devices
See [distribution guide][distributionguide_macos]
to prepare an archive for distribution to designated Mac computers.
## Release your app to the App Store
When you're ready to release your app to the world,
follow these steps to submit your app for review and
release to the App Store:
1. Select **Pricing and Availability** from the sidebar of your app's
application details page on
[App Store Connect][appstoreconnect_login] and complete the
required information.
1. Select the status from the sidebar. If this is the first
release of this app, its status is
**1.0 Prepare for Submission**. Complete all required fields.
1. Click **Submit for Review**.
Apple notifies you when their app review process is complete.
Your app is released according to the instructions you
specified in the **Version Release** section.
For more details, see
[Distribute an app through the App Store][distributionguide_submit].
## Troubleshooting
The [Distribute your app][distributionguide] guide provides a
detailed overview of the process of releasing an app to the App Store.
[appicon]: {{site.apple-dev}}/design/human-interface-guidelines/macos/icons-and-images/app-icon/
[appreview]: {{site.apple-dev}}/app-store/review/
[appsigning]: https://help.apple.com/xcode/mac/current/#/dev154b28f09
[appstore]: {{site.apple-dev}}/app-store/submissions/
[appstoreconnect]: {{site.apple-dev}}/support/app-store-connect/
[appstoreconnect_api_key]: https://appstoreconnect.apple.com/access/api
[appstoreconnect_guide]: {{site.apple-dev}}/support/app-store-connect/
[appstoreconnect_guide_register]: https://help.apple.com/app-store-connect/#/dev2cd126805
[appstoreconnect_login]: https://appstoreconnect.apple.com/
[codemagic_cli_tools]: {{site.github}}/codemagic-ci-cd/cli-tools
[codesigning_guide]: {{site.apple-dev}}/library/content/documentation/Security/Conceptual/CodeSigningGuide/Introduction/Introduction.html
[Core Foundation Keys]: {{site.apple-dev}}/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
[devportal_appids]: {{site.apple-dev}}/account/resources/identifiers/list
[devportal_certificates]: {{site.apple-dev}}/account/resources/certificates/list
[devprogram]: {{site.apple-dev}}/programs/
[devprogram_membership]: {{site.apple-dev}}/support/compare-memberships/
[distributionguide]: https://help.apple.com/xcode/mac/current/#/dev8b4250b57
[distributionguide_config]: https://help.apple.com/xcode/mac/current/#/dev91fe7130a
[distributionguide_macos]: https://help.apple.com/xcode/mac/current/#/dev295cc0fae
[distributionguide_submit]: https://help.apple.com/xcode/mac/current/#/dev067853c94
[distributionguide_upload]: https://help.apple.com/xcode/mac/current/#/dev442d7f2ca
[obfuscating your Dart code]: /deployment/obfuscate
[TestFlight]: {{site.apple-dev}}/testflight/
| website/src/deployment/macos.md/0 | {
"file_path": "website/src/deployment/macos.md",
"repo_id": "website",
"token_count": 4635
} | 1,279 |
---
title: Flutter for web developers
description: Learn how to apply Web developer knowledge when building Flutter apps.
css-old: [two_column.css]
---
<?code-excerpt path-base="get-started/flutter-for/web_devs"?>
This page is for users who are familiar with the HTML
and CSS syntax for arranging components of an application's UI.
It maps HTML/CSS code snippets to their Flutter/Dart code equivalents.
Flutter is a framework for building cross-platform applications
that uses the Dart programming language.
To understand some differences between programming with Dart
and programming with Javascript,
see [Learning Dart as a JavaScript Developer][].
One of the fundamental differences between
designing a web layout and a Flutter layout,
is learning how constraints work,
and how widgets are sized and positioned.
To learn more, see [Understanding constraints][].
The examples assume:
* The HTML document starts with `<!DOCTYPE html>`, and the CSS box model
for all HTML elements is set to [`border-box`][],
for consistency with the Flutter model.
```css
{
box-sizing: border-box;
}
```
* In Flutter, the default styling of the 'Lorem ipsum' text
is defined by the `bold24Roboto` variable as follows,
to keep the syntax simple:
<?code-excerpt "lib/main.dart (TextStyle)"?>
```dart
TextStyle bold24Roboto = const TextStyle(
color: Colors.white,
fontSize: 24,
fontWeight: FontWeight.bold,
);
```
{{site.alert.secondary}}
How is react-style, or _declarative_, programming different from the
traditional imperative style?
For a comparison, see [Introduction to declarative UI][].
{{site.alert.end}}
## Performing basic layout operations
The following examples show how to perform the most common UI layout tasks.
### Styling and aligning text
Font style, size, and other text attributes that CSS
handles with the font and color properties are individual
properties of a [`TextStyle`][] child of a [`Text`][] widget.
For text-align property in CSS that is used for aligning text,
there is a textAlign property of a [`Text`][] widget.
In both HTML and Flutter, child elements or widgets
are anchored at the top left, by default.
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
Lorem ipsum
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
[[highlight]]font: 900 24px Georgia;[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (Container)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
color: Colors.grey[300],
child: const Text(
'Lorem ipsum',
style: [[highlight]]TextStyle(
fontFamily: 'Georgia',
fontSize: 24,
fontWeight: FontWeight.bold,
),
[[/highlight]]
[[highlight]]textAlign: TextAlign.center, [[/highlight]]
),
);
{% endprettify %}
</div>
### Setting background color
In Flutter, you set the background color using the `color` property
or the `decoration` property of a [`Container`][].
However, you cannot supply both, since it would potentially
result in the decoration drawing over the background color.
The `color` property should be preferred
when the background is a simple color.
For other cases, such as gradients or images,
use the `decoration` property.
The CSS examples use the hex color equivalents to the Material color palette.
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
Lorem ipsum
</div>
.grey-box {
[[highlight]]background-color: #e0e0e0;[[/highlight]] /* grey 300 */
width: 320px;
height: 240px;
font: 900 24px Roboto;
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (Container2)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
[[highlight]]color: Colors.grey[300],
[[/highlight]]
child: Text(
'Lorem ipsum',
style: bold24Roboto,
),
);
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (Container3)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
[[highlight]]decoration: BoxDecoration(
color: Colors.grey[300],
),
[[/highlight]]
child: Text(
'Lorem ipsum',
style: bold24Roboto,
),
);
{% endprettify %}
</div>
### Centering components
A [`Center`][] widget centers its child both horizontally
and vertically.
To accomplish a similar effect in CSS, the parent element uses either a flex
or table-cell display behavior. The examples on this page show the flex
behavior.
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
Lorem ipsum
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
font: 900 24px Roboto;
[[highlight]]display: flex;
align-items: center;
justify-content: center;[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (Center)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
color: Colors.grey[300],
child: [[highlight]]Center(
child: [[/highlight]]Text(
'Lorem ipsum',
style: bold24Roboto,
),
),
);
{% endprettify %}
</div>
### Setting container width
To specify the width of a [`Container`][]
widget, use its `width` property.
This is a fixed width, unlike the CSS max-width property
that adjusts the container width up to a maximum value.
To mimic that effect in Flutter,
use the `constraints` property of the Container.
Create a new [`BoxConstraints`][] widget with a `minWidth` or `maxWidth`.
For nested Containers, if the parent's width is less than the child's width,
the child Container sizes itself to match the parent.
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
<div class="red-box">
Lorem ipsum
</div>
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
[[highlight]]width: 320px;[[/highlight]]
height: 240px;
font: 900 24px Roboto;
display: flex;
align-items: center;
justify-content: center;
}
.red-box {
background-color: #ef5350; /* red 400 */
padding: 16px;
color: #ffffff;
[[highlight]]width: 100%;
max-width: 240px;[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (Nested)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
[[highlight]]width: 320,
[[/highlight]]
height: 240,
color: Colors.grey[300],
child: Center(
child: Container(
// red box
[[highlight]]width: 240,
[[/highlight]]// max-width is 240
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.red[400],
),
child: Text(
'Lorem ipsum',
style: bold24Roboto,
),
),
),
);
{% endprettify %}
</div>
## Manipulating position and size
The following examples show how to perform more complex operations
on widget position, size, and background.
### Setting absolute position
By default, widgets are positioned relative to their parent.
To specify an absolute position for a widget as x-y coordinates,
nest it in a [`Positioned`][] widget that is,
in turn, nested in a [`Stack`][] widget.
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
<div class="red-box">
Lorem ipsum
</div>
</div>
.grey-box {
[[highlight]]position: relative;[[/highlight]]
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
font: 900 24px Roboto;
}
.red-box {
background-color: #ef5350; /* red 400 */
padding: 16px;
color: #ffffff;
[[highlight]]position: absolute;
top: 24px;
left: 24px;[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (Absolute)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
color: Colors.grey[300],
[[highlight]]child: Stack(
children: [[/highlight]][
Positioned(
// red box
[[highlight]]left: 24,
top: 24,
[[/highlight]]
child: Container(
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.red[400],
),
child: Text(
'Lorem ipsum',
style: bold24Roboto,
),
),
),
],
),
);
{% endprettify %}
</div>
### Rotating components
To rotate a widget, nest it in a [`Transform`][] widget.
Use the `Transform` widget's `alignment` and `origin` properties
to specify the transform origin (fulcrum) in relative and absolute terms,
respectively.
For a simple 2D rotation, in which the widget is rotated on the Z axis,
create a new [`Matrix4`][] identity object
and use its `rotateZ()` method to specify the rotation factor
using radians (degrees × π / 180).
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
<div class="red-box">
Lorem ipsum
</div>
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
font: 900 24px Roboto;
display: flex;
align-items: center;
justify-content: center;
}
.red-box {
background-color: #ef5350; /* red 400 */
padding: 16px;
color: #ffffff;
[[highlight]]transform: rotate(15deg);[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (Rotating)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
color: Colors.grey[300],
child: Center(
child: [[highlight]]Transform(
alignment: Alignment.center,
transform: Matrix4.identity()..rotateZ(15 * 3.1415927 / 180),
child: [[/highlight]]Container(
// red box
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.red[400],
),
child: Text(
'Lorem ipsum',
style: bold24Roboto,
textAlign: TextAlign.center,
),
),
),
),
);
{% endprettify %}
</div>
### Scaling components
To scale a widget up or down, nest it in a [`Transform`][] widget.
Use the Transform widget's `alignment` and `origin` properties
to specify the transform origin (fulcrum) in relative or absolute terms,
respectively.
For a simple scaling operation along the x-axis,
create a new [`Matrix4`][] identity object
and use its `scale()` method to specify the scaling factor.
When you scale a parent widget,
its child widgets are scaled accordingly.
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
<div class="red-box">
Lorem ipsum
</div>
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
font: 900 24px Roboto;
display: flex;
align-items: center;
justify-content: center;
}
.red-box {
background-color: #ef5350; /* red 400 */
padding: 16px;
color: #ffffff;
[[highlight]]transform: scale(1.5);[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (Scaling)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
color: Colors.grey[300],
child: Center(
child: [[highlight]]Transform(
alignment: Alignment.center,
transform: Matrix4.identity()..scale(1.5),
child: [[/highlight]]Container(
// red box
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.red[400],
),
child: Text(
'Lorem ipsum',
style: bold24Roboto,
textAlign: TextAlign.center,
),
),
),
),
);
{% endprettify %}
</div>
### Applying a linear gradient
To apply a linear gradient to a widget's background,
nest it in a [`Container`][] widget.
Then use the `Container` widget's `decoration` property to create a
[`BoxDecoration`][] object, and use `BoxDecoration`'s `gradient`
property to transform the background fill.
The gradient "angle" is based on the Alignment (x, y) values:
* If the beginning and ending x values are equal,
the gradient is vertical (0° | 180°).
* If the beginning and ending y values are equal,
the gradient is horizontal (90° | 270°).
#### Vertical gradient
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
<div class="red-box">
Lorem ipsum
</div>
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
font: 900 24px Roboto;
display: flex;
align-items: center;
justify-content: center;
}
.red-box {
padding: 16px;
color: #ffffff;
[[highlight]]background: linear-gradient(180deg, #ef5350, rgba(0, 0, 0, 0) 80%);[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (Gradient)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
color: Colors.grey[300],
child: Center(
child: Container(
// red box
[[highlight]]decoration: const BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topCenter,
end: Alignment(0.0, 0.6),
colors: <Color>[
Color(0xffef5350),
Color(0x00ef5350),
],
),
),
[[/highlight]]
padding: const EdgeInsets.all(16),
child: Text(
'Lorem ipsum',
style: bold24Roboto,
),
),
),
);
{% endprettify %}
</div>
#### Horizontal gradient
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
<div class="red-box">
Lorem ipsum
</div>
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
font: 900 24px Roboto;
display: flex;
align-items: center;
justify-content: center;
}
.red-box {
padding: 16px;
color: #ffffff;
[[highlight]]background: linear-gradient(90deg, #ef5350, rgba(0, 0, 0, 0) 80%);[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (HorizontalGradient)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
color: Colors.grey[300],
child: Center(
child: Container(
// red box
padding: const EdgeInsets.all(16),
[[highlight]]decoration: const BoxDecoration(
gradient: LinearGradient(
begin: Alignment(-1.0, 0.0),
end: Alignment(0.6, 0.0),
colors: <Color>[
Color(0xffef5350),
Color(0x00ef5350),
],
),
),
[[/highlight]]
child: Text(
'Lorem ipsum',
style: bold24Roboto,
),
),
),
);
{% endprettify %}
</div>
## Manipulating shapes
The following examples show how to make and customize shapes.
### Rounding corners
To round the corners of a rectangular shape,
use the `borderRadius` property of a [`BoxDecoration`][] object.
Create a new [`BorderRadius`][]
object that specifies the radius for rounding each corner.
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
<div class="red-box">
Lorem ipsum
</div>
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
font: 900 24px Roboto;
display: flex;
align-items: center;
justify-content: center;
}
.red-box {
background-color: #ef5350; /* red 400 */
padding: 16px;
color: #ffffff;
[[highlight]]border-radius: 8px;[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (RoundCorners)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
color: Colors.grey[300],
child: Center(
child: Container(
// red circle
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.red[400],
[[highlight]]borderRadius: const BorderRadius.all(
Radius.circular(8),
), [[/highlight]]
),
child: Text(
'Lorem ipsum',
style: bold24Roboto,
),
),
),
);
{% endprettify %}
</div>
### Adding box shadows
In CSS you can specify shadow offset and blur in shorthand,
using the box-shadow property. This example shows two box shadows,
with properties:
* `xOffset: 0px, yOffset: 2px, blur: 4px, color: black @80% alpha`
* `xOffset: 0px, yOffset: 06x, blur: 20px, color: black @50% alpha`
In Flutter, each property and value is specified separately.
Use the `boxShadow` property of `BoxDecoration` to create a list of
[`BoxShadow`][] widgets. You can define one or multiple
`BoxShadow` widgets, which can be stacked
to customize the shadow depth, color, and so on.
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
<div class="red-box">
Lorem ipsum
</div>
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
font: 900 24px Roboto;
display: flex;
align-items: center;
justify-content: center;
}
.red-box {
background-color: #ef5350; /* red 400 */
padding: 16px;
color: #ffffff;
[[highlight]]box-shadow: 0 2px 4px rgba(0, 0, 0, 0.8),
0 6px 20px rgba(0, 0, 0, 0.5);[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (BoxShadow)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
margin: const EdgeInsets.only(bottom: 16),
decoration: BoxDecoration(
color: Colors.grey[300],
),
child: Center(
child: Container(
// red box
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.red[400],
[[highlight]]boxShadow: const <BoxShadow>[
BoxShadow(
color: Color(0xcc000000),
offset: Offset(0, 2),
blurRadius: 4,
),
BoxShadow(
color: Color(0x80000000),
offset: Offset(0, 6),
blurRadius: 20,
),
], [[/highlight]]
),
child: Text(
'Lorem ipsum',
style: bold24Roboto,
),
),
),
);
{% endprettify %}
</div>
### Making circles and ellipses
Making a circle in CSS requires a workaround of applying a
border-radius of 50% to all four sides of a rectangle,
though there are [basic shapes][].
While this approach is supported
with the `borderRadius` property of [`BoxDecoration`][],
Flutter provides a `shape` property
with [`BoxShape` enum][] for this purpose.
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
<div class="red-circle">
Lorem ipsum
</div>
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
font: 900 24px Roboto;
display: flex;
align-items: center;
justify-content: center;
}
.red-circle {
background-color: #ef5350; /* red 400 */
padding: 16px;
color: #ffffff;
[[highlight]]text-align: center;
width: 160px;
height: 160px;
border-radius: 50%;[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (Circle)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
color: Colors.grey[300],
child: Center(
child: Container(
// red circle
decoration: BoxDecoration(
color: Colors.red[400],
[[highlight]]shape: BoxShape.circle, [[/highlight]]
),
padding: const EdgeInsets.all(16),
[[highlight]]width: 160,
height: 160,
[[/highlight]]
child: Text(
'Lorem ipsum',
style: bold24Roboto,
[[highlight]]textAlign: TextAlign.center, [[/highlight]]
),
),
),
);
{% endprettify %}
</div>
## Manipulating text
The following examples show how to specify fonts and other
text attributes. They also show how to transform text strings,
customize spacing, and create excerpts.
### Adjusting text spacing
In CSS, you specify the amount of white space
between each letter or word by giving a length value
for the letter-spacing and word-spacing properties, respectively.
The amount of space can be in px, pt, cm, em, etc.
In Flutter, you specify white space as logical pixels
(negative values are allowed)
for the `letterSpacing` and `wordSpacing` properties
of a [`TextStyle`][] child of a `Text` widget.
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
<div class="red-box">
Lorem ipsum
</div>
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
font: 900 24px Roboto;
display: flex;
align-items: center;
justify-content: center;
}
.red-box {
background-color: #ef5350; /* red 400 */
padding: 16px;
color: #ffffff;
[[highlight]]letter-spacing: 4px;[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (TextSpacing)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
color: Colors.grey[300],
child: Center(
child: Container(
// red box
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.red[400],
),
child: const Text(
'Lorem ipsum',
style: TextStyle(
color: Colors.white,
fontSize: 24,
fontWeight: FontWeight.w900,
[[highlight]]letterSpacing: 4, [[/highlight]]
),
),
),
),
);
{% endprettify %}
</div>
### Making inline formatting changes
A [`Text`][] widget lets you display text
with some formatting characteristics.
To display text that uses multiple styles
(in this example, a single word with emphasis),
use a [`RichText`][] widget instead.
Its `text` property can specify one or more
[`TextSpan`][] objects that can be individually styled.
In the following example, "Lorem" is in a `TextSpan`
with the default (inherited) text styling,
and "ipsum" is in a separate `TextSpan` with custom styling.
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
<div class="red-box">
[[highlight]]Lorem <em>ipsum</em>[[/highlight]]
</div>
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
[[highlight]]font: 900 24px Roboto;[[/highlight]]
display: flex;
align-items: center;
justify-content: center;
}
.red-box {
background-color: #ef5350; /* red 400 */
padding: 16px;
color: #ffffff;
}
[[highlight]].red-box em {
font: 300 48px Roboto;
font-style: italic;
}[[/highlight]]
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (InlineFormatting)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
color: Colors.grey[300],
child: Center(
child: Container(
// red box
decoration: BoxDecoration(
color: Colors.red[400],
),
padding: const EdgeInsets.all(16),
child: [[highlight]]RichText(
text: TextSpan(
style: bold24Roboto,
children: const <TextSpan>[
TextSpan(text: 'Lorem '),
TextSpan(
text: 'ipsum',
style: TextStyle(
fontWeight: FontWeight.w300,
fontStyle: FontStyle.italic,
fontSize: 48,
),
),
],
),
), [[/highlight]]
),
),
);
{% endprettify %}
</div>
### Creating text excerpts
An excerpt displays the initial line(s) of text in a paragraph,
and handles the overflow text, often using an ellipsis.
In Flutter, use the `maxLines` property of a [`Text`][] widget
to specify the number of lines to include in the excerpt,
and the `overflow` property for handling overflow text.
<div class="lefthighlight">
{% prettify css %}
<div class="grey-box">
<div class="red-box">
Lorem ipsum dolor sit amet, consec etur
</div>
</div>
.grey-box {
background-color: #e0e0e0; /* grey 300 */
width: 320px;
height: 240px;
font: 900 24px Roboto;
display: flex;
align-items: center;
justify-content: center;
}
.red-box {
background-color: #ef5350; /* red 400 */
padding: 16px;
color: #ffffff;
[[highlight]]overflow: hidden;
display: -webkit-box;
-webkit-box-orient: vertical;
-webkit-line-clamp: 2;[[/highlight]]
}
{% endprettify %}
</div>
<div class="righthighlight">
<?code-excerpt "lib/main.dart (TextExcerpt)" replace="/\/\*//g;/\*\/ *//g"?>
{% prettify dart %}
final container = Container(
// grey box
width: 320,
height: 240,
color: Colors.grey[300],
child: Center(
child: Container(
// red box
decoration: BoxDecoration(
color: Colors.red[400],
),
padding: const EdgeInsets.all(16),
child: Text(
'Lorem ipsum dolor sit amet, consec etur',
style: bold24Roboto,
[[highlight]]overflow: TextOverflow.ellipsis,
maxLines: 1, [[/highlight]]
),
),
),
);
{% endprettify %}
</div>
<div class="end-examples"></div>
[basic shapes]: https://developer.mozilla.org/en-US/docs/Web/CSS/basic-shape
[`border-box`]: https://css-tricks.com/box-sizing/
[`BorderRadius`]: {{site.api}}/flutter/painting/BorderRadius-class.html
[`BoxDecoration`]: {{site.api}}/flutter/painting/BoxDecoration-class.html
[`BoxConstraints`]: {{site.api}}/flutter/rendering/BoxConstraints-class.html
[`BoxShape` enum]: {{site.api}}/flutter/painting/BoxShape.html
[`BoxShadow`]: {{site.api}}/flutter/painting/BoxShadow-class.html
[`Center`]: {{site.api}}/flutter/widgets/Center-class.html
[`Container`]: {{site.api}}/flutter/widgets/Container-class.html
[Introduction to declarative UI]: /get-started/flutter-for/declarative
[Learning Dart as a JavaScript Developer]: {{site.dart-site}}/guides/language/coming-from/js-to-dart
[`Matrix4`]: {{site.api}}/flutter/vector_math_64/Matrix4-class.html
[`Positioned`]: {{site.api}}/flutter/widgets/Positioned-class.html
[`RichText`]: {{site.api}}/flutter/widgets/RichText-class.html
[`Stack`]: {{site.api}}/flutter/widgets/Stack-class.html
[`Text`]: {{site.api}}/flutter/widgets/Text-class.html
[`TextSpan`]: {{site.api}}/flutter/painting/TextSpan-class.html
[`TextStyle`]: {{site.api}}/flutter/painting/TextStyle-class.html
[`Transform`]: {{site.api}}/flutter/widgets/Transform-class.html
[Understanding constraints]: /ui/layout/constraints
| website/src/get-started/flutter-for/web-devs.md/0 | {
"file_path": "website/src/get-started/flutter-for/web-devs.md",
"repo_id": "website",
"token_count": 10709
} | 1,280 |
## Get the Flutter SDK {#get-sdk}
{% include docs/china-notice.md %}
1. Download the following installation bundle to get the latest
{{site.sdk.channel}} release of the Flutter SDK:
|Intel | | <span class="apple-silicon">Apple Silicon</span> |
|------| | ---------------|
|[(loading...)](#){:.download-latest-link-{{os}}.btn.btn-primary} | | [(loading...)](#){:.download-latest-link-{{os}}-arm64.apple-silicon.btn.btn-primary} |
<br>
For other release channels, and older builds,
check out the [SDK archive][].
<div class="apple-silicon">{{site.alert.tip}}
To determine whether your Mac uses an Apple silicon processor,
refer to [Mac computers with Apple silicon][]{:target="_blank"}
on apple.com
{{site.alert.end}}</div>
1. Extract the file in the desired location. For example:
{% comment %}
Our JS also updates the filename in this template,
but it doesn't include the terminal formatting:
```terminal
$ cd ~/development
$ unzip ~/Downloads/[[download-latest-link-filename]]flutter_{{os}}_vX.X.X-{{site.sdk.channel}}.zip[[/end]]
```
{% endcomment
-%}
```terminal
$ cd ~/development
$ unzip ~/Downloads/flutter_{{os}}_vX.X.X-{{site.sdk.channel}}.zip
```
1. Add the `flutter` tool to your path:
```terminal
$ export PATH="$PATH:`pwd`/flutter/bin"
```
This command sets your `PATH` variable for the
_current_ terminal window only.
To permanently add Flutter to your path,
check out [Update your path][].
You are now ready to run Flutter commands!
{{site.alert.note}}
To update an existing version of Flutter,
check out [Upgrading Flutter][].
{{site.alert.end}}
### Run flutter doctor
Run the following command to see if there are any
dependencies you need to install to complete the setup
(for verbose output, add the `-v` flag):
```terminal
$ flutter doctor
```
This command checks your environment and displays
a report to the terminal window.
The Dart SDK is bundled with Flutter;
it isn't necessary to install Dart separately.
Check the output carefully for other software you might
need to install or further tasks to perform
(shown in **bold** text).
For example:
<pre>
[-] Android toolchain - develop for Android devices
• Android SDK at /Users/dash/Library/Android/sdk
<strong>✗ Android SDK is missing command line tools; download from https://goo.gl/XxQghQ</strong>
• Try re-installing or updating your Android SDK,
visit /setup/#android-setup for detailed instructions.
</pre>
The following sections describe how to perform these tasks
and finish the setup process.
Once you have installed any missing dependencies,
run the `flutter doctor` command again
to verify that you've set everything up correctly.
### Downloading straight from GitHub instead of using an archive
_This is only suggested for advanced use cases._
You can also use git directly instead of downloading
the prepared archive. For example,
to download the stable branch:
```terminal
$ git clone https://github.com/flutter/flutter.git -b stable
```
[Update your path][], and run `flutter doctor`.
This lets you know if there are other dependencies
you need to install to use Flutter (such as the Android SDK).
If you didn't use the archive,
Flutter downloads necessary development binaries as they
are needed (if you used the archive,
they are included in the download). You might want to
pre-download these development binaries
(for example, you might do this when setting
up hermetic build environments,
or if you only have intermittent network availability).
To do so, run the following command:
```terminal
$ flutter precache
```
For additional download options, check out `flutter help precache`.
{% include_relative _analytics.md %}
[Flutter repo]: {{site.repo.flutter}}
[SDK archive]: /release/archive
[Snap Store]: https://snapcraft.io/store
[snapd]: https://snapcraft.io/flutter
[Update your path]: #update-your-path
[Upgrading Flutter]: /release/upgrade
[Mac computers with Apple silicon]: https://support.apple.com/en-us/HT211814
| website/src/get-started/install/_deprecated/_get-sdk-mac.md/0 | {
"file_path": "website/src/get-started/install/_deprecated/_get-sdk-mac.md",
"repo_id": "website",
"token_count": 1281
} | 1,281 |
---
title: Start building Flutter web apps on Linux
description: Configure your system to develop Flutter web apps on Linux.
short-title: Make web apps
target: Web
config: LinuxWeb
devos: Linux
next:
title: Create a test app
path: /get-started/test-drive
---
{% include docs/install/reqs/linux/base.md
os=page.devos
target=page.target
-%}
{% include docs/install/flutter-sdk.md
os=page.devos
target=page.target
terminal='a shell'
-%}
{% include docs/install/flutter-doctor.md
devos=page.devos
target=page.target
config=page.config
-%}
{% include docs/install/next-steps.md
devos=page.devos
target=page.target
config=page.config
-%}
| website/src/get-started/install/linux/web.md/0 | {
"file_path": "website/src/get-started/install/linux/web.md",
"repo_id": "website",
"token_count": 256
} | 1,282 |
---
title: Background processes
description: Where to find more information on implementing background processes in Flutter.
---
Have you ever wanted to execute Dart code in the
background—even if your app wasn't the currently active app?
Perhaps you wanted to implement a process that watches the time,
or that catches camera movement.
In Flutter, you can execute Dart code in the background.
The mechanism for this feature involves setting up an isolate.
_Isolates_ are Dart's model for multithreading,
though an isolate differs from a conventional thread
in that it doesn't share memory with the main program.
You'll set up your isolate for background execution using
callbacks and a callback dispatcher.
Additionally, the [WorkManager] plugin enables persistent background processing
that keeps tasks scheduled through app restarts and system reboots.
For more information and a geofencing example that uses background
execution of Dart code, see the Medium article by Ben Konyi,
[Executing Dart in the Background with Flutter Plugins and
Geofencing][background-processes]. At the end of this article,
you'll find links to example code, and relevant documentation for Dart,
iOS, and Android.
[background-processes]: {{site.flutter-medium}}/executing-dart-in-the-background-with-flutter-plugins-and-geofencing-2b3e40a1a124
[WorkManager]: {{site.pub-pkg}}/workmanager
| website/src/packages-and-plugins/background-processes.md/0 | {
"file_path": "website/src/packages-and-plugins/background-processes.md",
"repo_id": "website",
"token_count": 336
} | 1,283 |
---
title: Flutter performance profiling
subtitle: Where to look when your Flutter app drops frames in the UI.
description: Diagnosing UI performance issues in Flutter.
---
{% include docs/performance.md %}
{{site.alert.secondary}}
<h4>What you'll learn</h4>
* Flutter aims to provide 60 frames per second (fps) performance,
or 120 fps performance on devices capable of 120Hz updates.
* For 60fps, frames need to render approximately every 16ms.
* Jank occurs when the UI doesn't render smoothly. For example,
every so often, a frame takes 10 times longer to render,
so it gets dropped, and the animation visibly jerks.
{{site.alert.end}}
It's been said that "a _fast_ app is great,
but a _smooth_ app is even better."
If your app isn't rendering smoothly,
how do you fix it? Where do you begin?
This guide shows you where to start,
steps to take, and tools that can help.
{{site.alert.note}}
* An app's performance is determined by more than one measure.
Performance sometimes refers to raw speed, but also to the UI's
smoothness and lack of stutter. Other examples of performance
include I/O or network speed. This page primarily focuses on the
second type of performance (UI smoothness), but you can use most
of the same tools to diagnose other performance problems.
* To perform tracing inside your Dart code, see [Tracing Dart code][]
in the [Debugging][] page.
{{site.alert.end}}
[Debugging]: /testing/debugging
[Tracing Dart code]: /testing/code-debugging#trace-dart-code-performance
## Diagnosing performance problems
To diagnose an app with performance problems, you'll enable
the performance overlay to look at the UI and raster threads.
Before you begin, make sure that you're running in
[profile mode][], and that you're not using an emulator.
For best results, you might choose the slowest device that
your users might use.
[profile mode]: /testing/build-modes#profile
### Connect to a physical device
Almost all performance debugging for Flutter applications
should be conducted on a physical Android or iOS device,
with your Flutter application running in [profile mode][].
Using debug mode, or running apps on simulators
or emulators, is generally not indicative of the final
behavior of release mode builds.
_You should consider checking performance
on the slowest device that your users might reasonably use._
{{site.alert.secondary}}
<h4 markdown="1">**Why you should run on a real device:**</h4>
* Simulators and emulators don't use the same hardware, so their
performance characteristics are different—some operations are
faster on simulators than real devices, and some are slower.
* Debug mode enables additional checks (such as asserts) that don't run
in profile or release builds, and these checks can be expensive.
* Debug mode also executes code in a different way than release mode.
The debug build compiles the Dart code "just in time" (JIT) as the
app runs, but profile and release builds are pre-compiled to native
instructions (also called "ahead of time", or AOT) before the app is
loaded onto the device. JIT can cause the app to pause for JIT
compilation, which itself can cause jank.
{{site.alert.end}}
### Run in profile mode
Flutter's profile mode compiles and launches your application
almost identically to release mode, but with just enough additional
functionality to allow debugging performance problems.
For example, profile mode provides tracing information to the
profiling tools.
{{site.alert.note}}
DevTools can't connect to a Flutter web app running
in profile mode. Use Chrome DevTools to
[generate timeline events][] for a web app.
{{site.alert.end}}
[generate timeline events]: {{site.developers}}/web/tools/chrome-devtools/evaluate-performance/performance-reference
Launch the app in profile mode as follows:
* In VS Code, open your `launch.json` file, and set the
`flutterMode` property to `profile`
(when done profiling, change it back to `release` or `debug`):
```json
"configurations": [
{
"name": "Flutter",
"request": "launch",
"type": "dart",
"flutterMode": "profile"
}
]
```
* In Android Studio and IntelliJ, use the
**Run > Flutter Run main.dart in Profile Mode** menu item.
* From the command line, use the `--profile` flag:
```terminal
$ flutter run --profile
```
For more information on the different modes,
see [Flutter's build modes][].
You'll begin by opening DevTools and viewing
the performance overlay, as discussed in the next section.
[Flutter's build modes]: /testing/build-modes
## Launch DevTools
DevTools provides features like profiling, examining the heap,
displaying code coverage, enabling the performance overlay,
and a step-by-step debugger.
DevTools' [Timeline view][] allows you to investigate the
UI performance of your application on a frame-by-frame basis.
Once your app is running in profile mode,
[launch DevTools][].
[launch DevTools]: /tools/devtools
[Timeline view]: /tools/devtools/performance
## The performance overlay
The performance overlay displays statistics in two graphs
that show where time is being spent in your app. If the UI
is janky (skipping frames), these graphs help you figure out why.
The graphs display on top of your running app, but they aren't
drawn like a normal widget—the Flutter engine itself
paints the overlay and only minimally impacts performance.
Each graph represents the last 300 frames for that thread.
This section describes how to enable the performance overlay
and use it to diagnose the cause of jank in your application.
The following screenshot shows the performance overlay running
on the Flutter Gallery example:
<br>Performance overlay showing the raster thread (top),
and UI thread (bottom).<br>The vertical green bars
represent the current frame.
## Interpreting the graphs
The top graph (marked "GPU") shows the time spent by
the raster thread, the bottom one graph shows the time
spent by the UI thread.
The white lines across the graphs show 16ms increments
along the vertical axis; if the graph ever goes over one
of these lines then you are running at less than 60Hz.
The horizontal axis represents frames. The graph is
only updated when your application paints,
so if it's idle the graph stops moving.
The overlay should always be viewed in [profile mode][],
since [debug mode][] performance is intentionally sacrificed
in exchange for expensive asserts that are intended to aid
development, and thus the results are misleading.
Each frame should be created and displayed within 1/60th of
a second (approximately 16ms). A frame exceeding this limit
(in either graph) fails to display, resulting in jank,
and a vertical red bar appears in one or both of the graphs.
If a red bar appears in the UI graph, the Dart code is too
expensive. If a red vertical bar appears in the GPU graph,
the scene is too complicated to render quickly.
<br>The vertical red bars indicate that the current frame is
expensive to both render and paint.<br>When both graphs
display red, start by diagnosing the UI thread.
[debug mode]: /testing/build-modes#debug
## Flutter's threads
Flutter uses several threads to do its work, though
only two of the threads are shown in the overlay.
All of your Dart code runs on the UI thread.
Although you have no direct access to any other thread,
your actions on the UI thread have performance consequences
on other threads.
<dl markdown="1">
<dt markdown="1">**Platform thread**</dt>
<dd markdown="1">The platform's main thread. Plugin code runs here.
For more information, see the [UIKit][] documentation for iOS,
or the [MainThread][] documentation for Android.
This thread is not shown in the performance overlay.
</dd>
<dt markdown="1">**UI thread**</dt>
<dd markdown="1">The UI thread executes Dart code in the Dart VM.
This thread includes code that you wrote, and code executed by
Flutter's framework on your app's behalf.
When your app creates and displays a scene, the UI thread creates
a _layer tree_, a lightweight object containing device-agnostic
painting commands, and sends the layer tree to the raster thread to
be rendered on the device. _Don't block this thread!_
Shown in the bottom row of the performance overlay.
</dd>
<dt markdown="1">**Raster thread**</dt>
<dd markdown="1">The raster thread takes the layer tree and displays
it by talking to the GPU (graphic processing unit).
You cannot directly access the raster thread or its data but,
if this thread is slow, it's a result of something you've done
in the Dart code. Skia and Impeller, the graphics libraries,
run on this thread.
Shown in the top row of the performance overlay.
Note that while the raster thread rasterizes for the GPU,
the thread itself runs on the CPU.
</dd>
<dt markdown="1">**I/O thread**</dt>
<dd markdown="1">Performs expensive tasks (mostly I/O) that would
otherwise block either the UI or raster threads.
This thread is not shown in the performance overlay.
</dd>
</dl>
For links to more information and videos,
see [The Framework architecture][] on the
[GitHub wiki][], and the community article,
[The Layer Cake][].
[GitHub wiki]: {{site.repo.flutter}}/wiki/
[MainThread]: {{site.android-dev}}/reference/android/support/annotation/MainThread
[The Framework architecture]: {{site.repo.flutter}}/wiki/The-Framework-architecture
[The Layer Cake]: {{site.medium}}/flutter-community/the-layer-cake-widgets-elements-renderobjects-7644c3142401
[UIKit]: {{site.apple-dev}}/documentation/uikit
### Displaying the performance overlay
You can toggle display of the performance overlay as follows:
* Using the Flutter inspector
* From the command line
* Programmatically
#### Using the Flutter inspector
The easiest way to enable the PerformanceOverlay widget is
from the Flutter inspector, which is available in the
[Inspector view][] in [DevTools][]. Simply click the
**Performance Overlay** button to toggle the overlay
on your running app.
[Inspector view]: /tools/devtools/inspector
#### From the command line
Toggle the performance overlay using the **P** key from
the command line.
#### Programmatically
To enable the overlay programmatically, see
[Performance overlay][], a section in the
[Debugging Flutter apps programmatically][] page.
[Debugging Flutter apps programmatically]: /testing/code-debugging
[Performance overlay]: /testing/code-debugging#add-performance-overlay
## Identifying problems in the UI graph
If the performance overlay shows red in the UI graph,
start by profiling the Dart VM, even if the GPU graph
also shows red.
## Identifying problems in the GPU graph
Sometimes a scene results in a layer tree that is easy to construct,
but expensive to render on the raster thread. When this happens,
the UI graph has no red, but the GPU graph shows red.
In this case, you'll need to figure out what your code is doing
that is causing rendering code to be slow. Specific kinds of workloads
are more difficult for the GPU. They might involve unnecessary calls
to [`saveLayer`][], intersecting opacities with multiple objects,
and clips or shadows in specific situations.
If you suspect that the source of the slowness is during an animation,
click the **Slow Animations** button in the Flutter inspector
to slow animations down by 5x.
If you want more control on the speed, you can also do this
[programmatically][].
Is the slowness on the first frame, or on the whole animation?
If it's the whole animation, is clipping causing the slow down?
Maybe there's an alternative way of drawing the scene that doesn't
use clipping. For example, overlay opaque corners onto a square
instead of clipping to a rounded rectangle.
If it's a static scene that's being faded, rotated, or otherwise
manipulated, a [`RepaintBoundary`][] might help.
[programmatically]: /testing/code-debugging#debug-animation-issues
[`RepaintBoundary`]: {{site.api}}/flutter/widgets/RepaintBoundary-class.html
[`saveLayer`]: {{site.api}}/flutter/dart-ui/Canvas/saveLayer.html
#### Checking for offscreen layers
The [`saveLayer`][] method is one of the most expensive methods in
the Flutter framework. It's useful when applying post-processing
to the scene, but it can slow your app and should be avoided if
you don't need it. Even if you don't call `saveLayer` explicitly,
implicit calls might happen on your behalf. You can check whether
your scene is using `saveLayer` with the
[`PerformanceOverlayLayer.checkerboardOffscreenLayers`][] switch.
{% comment %}
[TODO: Document disabling the graphs and checkerboardRasterCacheImages.
Flutter inspector doesn't seem to support this?]
{% endcomment %}
Once the switch is enabled, run the app and look for any images
that are outlined with a flickering box. The box flickers from
frame to frame if a new frame is being rendered. For example,
perhaps you have a group of objects with opacities that are rendered
using `saveLayer`. In this case, it's probably more performant to
apply an opacity to each individual widget, rather than a parent
widget higher up in the widget tree. The same goes for
other potentially expensive operations, such as clipping or shadows.
{{site.alert.note}}
Opacity, clipping, and shadows are not, in themselves,
a bad idea. However, applying them to the top of the
widget tree might cause extra calls to `saveLayer`,
and needless processing.
{{site.alert.end}}
When you encounter calls to `saveLayer`,
ask yourself these questions:
* Does the app need this effect?
* Can any of these calls be eliminated?
* Can I apply the same effect to an individual element instead of a group?
[`PerformanceOverlayLayer.checkerboardOffscreenLayers`]: {{site.api}}/flutter/rendering/PerformanceOverlayLayer/checkerboardOffscreenLayers.html
#### Checking for non-cached images
Caching an image with [`RepaintBoundary`][] is good,
_when it makes sense_.
One of the most expensive operations,
from a resource perspective,
is rendering a texture using an image file.
First, the compressed image
is fetched from persistent storage.
The image is decompressed into host memory (GPU memory),
and transferred to device memory (RAM).
In other words, image I/O can be expensive.
The cache provides snapshots of complex hierarchies so
they are easier to render in subsequent frames.
_Because raster cache entries are expensive to
construct and take up loads of GPU memory,
cache images only where absolutely necessary._
You can see which images are being cached by enabling the
[`PerformanceOverlayLayer.checkerboardRasterCacheImages`][] switch.
{% comment %}
[TODO: Document how to do this, either via UI or programmatically.
At this point, disable the graphs and checkerboardOffScreenLayers.]
{% endcomment %}
Run the app and look for images rendered with a randomly colored
checkerboard, indicating that the image is cached.
As you interact with the scene, the checkerboarded images
should remain constant—you don't want to see flickering,
which would indicate that the cached image is being re-cached.
In most cases, you want to see checkerboards on static images,
but not on non-static images. If a static image isn't cached,
you can cache it by placing it into a [`RepaintBoundary`][]
widget. Though the engine might still ignore a repaint
boundary if it thinks the image isn't complex enough.
[`PerformanceOverlayLayer.checkerboardRasterCacheImages`]: {{site.api}}/flutter/rendering/PerformanceOverlayLayer/checkerboardRasterCacheImages.html
### Viewing the widget rebuild profiler
The Flutter framework is designed to make it hard to create
applications that are not 60fps and smooth. Often, if you have jank,
it's because there is a simple bug causing more of the UI to be
rebuilt each frame than required. The Widget rebuild profiler
helps you debug and fix performance problems due to these sorts
of bugs.
You can view the widget rebuilt counts for the current screen and
frame in the Flutter plugin for Android Studio and IntelliJ.
For details on how to do this, see [Show performance data][]
[Show performance data]: /tools/android-studio#show-performance-data
## Benchmarking
You can measure and track your app's performance by writing
benchmark tests. The Flutter Driver library provides support
for benchmarking. Using this integration test framework,
you can generate metrics to track the following:
* Jank
* Download size
* Battery efficiency
* Startup time
Tracking these benchmarks allows you to be informed when a
regression is introduced that adversely affects performance.
For more information, check out [Integration testing][].
[Integration testing]: /testing/integration-tests
## Other resources
The following resources provide more information on using
Flutter's tools and debugging in Flutter:
* [Debugging][]
* [Flutter inspector][]
* [Flutter inspector talk][], presented at DartConf 2018
* [Why Flutter Uses Dart][], an article on Hackernoon
* [Why Flutter uses Dart][video], a video on the Flutter channel
* [DevTools][devtools]: performance tooling for Dart and Flutter apps
* [Flutter API][] docs, particularly the [`PerformanceOverlay`][] class,
and the [dart:developer][] package
[dart:developer]: {{site.api}}/flutter/dart-developer/dart-developer-library.html
[devtools]: /tools/devtools
[Flutter API]: {{site.api}}
[Flutter inspector]: /tools/devtools/inspector
[Flutter inspector talk]: {{site.yt.watch}}?v=JIcmJNT9DNI
[`PerformanceOverlay`]: {{site.api}}/flutter/widgets/PerformanceOverlay-class.html
[video]: {{site.yt.watch}}?v=5F-6n_2XWR8
[Why Flutter Uses Dart]: https://hackernoon.com/why-flutter-uses-dart-dd635a054ebf
| website/src/perf/ui-performance.md/0 | {
"file_path": "website/src/perf/ui-performance.md",
"repo_id": "website",
"token_count": 4763
} | 1,284 |
---
title: Adding a splash screen to your Android app
short-title: Splash screen
description: Learn how to add a splash screen to your Android app.
---
<img src='/assets/images/docs/development/ui/splash-screen/android-splash-screen/splash-screens_header.png'
class="mw-100" alt="A graphic outlining the launch flow of an app including a splash screen">
Splash screens (also known as launch screens) provide
a simple initial experience while your Android app loads.
They set the stage for your application,
while allowing time for the app engine
to load and your app to initialize.
## Overview
{{site.alert.warning}}
If you are experiencing a crash from implementing a splash screen, you
might need to migrate your code. See detailed instructions in the
[Deprecated Splash Screen API Migration guide][].
{{site.alert.end}}
In Android, there are two separate screens that you can control:
a _launch screen_ shown while your Android app initializes,
and a _splash screen_ that displays while the Flutter experience
initializes.
{{site.alert.note}}
As of Flutter 2.5, the launch and splash screens have been
consolidated—Flutter now only implements the Android launch screen,
which is displayed until the framework draws the first frame.
This launch screen can act as both an Android launch screen and an
Android splash screen via customization, and thus, is referred to
as both terms. For example of such customization, check out the
[Android splash screen sample app][].
If, prior to 2.5, you used `flutter create` to create an app,
and you run the app on 2.5 or later, the app might crash.
For more info, see the [Deprecated Splash Screen API Migration guide][].
{{site.alert.end}}
{{site.alert.note}}
For apps that embed one or more Flutter screens within an
existing Android app, consider
[pre-warming a `FlutterEngine`][] and reusing the
same engine throughout your app to minimize wait
time associated with initialization of the Flutter engine.
{{site.alert.end}}
## Initializing the app
Every Android app requires initialization time while the
operating system sets up the app's process.
Android provides the concept of a [launch screen][] to
display a `Drawable` while the app is initializing.
A `Drawable` is an Android graphic.
To learn how to add a `Drawable` to your
Flutter project in Android Studio,
check out [Import drawables into your project][drawables]
in the Android developer documentation.
The default Flutter project template includes a definition
of a launch theme and a launch background. You can customize
this by editing `styles.xml`, where you can define a theme
whose `windowBackground` is set to the
`Drawable` that should be displayed as the launch screen.
```xml
<style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
<item name="android:windowBackground">@drawable/launch_background</item>
</style>
```
In addition, `styles.xml` defines a _normal theme_
to be applied to `FlutterActivity` after the launch
screen is gone. The normal theme background only shows
for a very brief moment after the splash screen disappears,
and during orientation change and `Activity` restoration.
Therefore, it's recommended that the normal theme use a
solid background color that looks similar to the primary
background color of the Flutter UI.
```xml
<style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
<item name="android:windowBackground">@drawable/normal_background</item>
</style>
```
[drawables]: {{site.android-dev}}/studio/write/resource-manager#import
## Set up the FlutterActivity in AndroidManifest.xml
In `AndroidManifest.xml`, set the `theme` of
`FlutterActivity` to the launch theme. Then,
add a metadata element to the desired `FlutterActivity`
to instruct Flutter to switch from the launch theme
to the normal theme at the appropriate time.
```xml
<activity
android:name=".MyActivity"
android:theme="@style/LaunchTheme"
// ...
>
<meta-data
android:name="io.flutter.embedding.android.NormalTheme"
android:resource="@style/NormalTheme"
/>
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
```
The Android app now displays the desired launch screen
while the app initializes.
## Android 12
To configure your launch screen on Android 12,
check out [Android Splash Screens][].
As of Android 12, you must use the new splash screen
API in your `styles.xml` file.
Consider creating an alternate resource file for Android 12 and higher.
Also make sure that your background image is in line with
the icon guidelines;
check out [Android Splash Screens][] for more details.
```xml
<style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
<item name="android:windowSplashScreenBackground">@color/bgColor</item>
<item name="android:windowSplashScreenAnimatedIcon">@drawable/launch_background</item>
</style>
```
Make sure that
`io.flutter.embedding.android.SplashScreenDrawable` is
**not** set in your manifest, and that `provideSplashScreen`
is **not** implemented, as these APIs are deprecated.
Doing so causes the Android launch screen to fade smoothly
into the Flutter when the
app is launched and the app might crash.
Some apps might want to continue showing the last frame of
the Android launch screen in Flutter. For example,
this preserves the illusion of a single frame
while additional loading continues in Dart.
To achieve this, the following
Android APIs might be helpful:
{% samplecode android-splash-alignment %}
{% sample Java %}
<?code-excerpt title="MainActivity.java"?>
```java
import android.os.Build;
import android.os.Bundle;
import android.window.SplashScreenView;
import androidx.core.view.WindowCompat;
import io.flutter.embedding.android.FlutterActivity;
public class MainActivity extends FlutterActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
// Aligns the Flutter view vertically with the window.
WindowCompat.setDecorFitsSystemWindows(getWindow(), false);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
// Disable the Android splash screen fade out animation to avoid
// a flicker before the similar frame is drawn in Flutter.
getSplashScreen()
.setOnExitAnimationListener(
(SplashScreenView splashScreenView) -> {
splashScreenView.remove();
});
}
super.onCreate(savedInstanceState);
}
}
```
{% sample Kotlin %}
<?code-excerpt title="MainActivity.kt"?>
```kotlin
import android.os.Build
import android.os.Bundle
import androidx.core.view.WindowCompat
import io.flutter.embedding.android.FlutterActivity
class MainActivity : FlutterActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
// Aligns the Flutter view vertically with the window.
WindowCompat.setDecorFitsSystemWindows(getWindow(), false)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
// Disable the Android splash screen fade out animation to avoid
// a flicker before the similar frame is drawn in Flutter.
splashScreen.setOnExitAnimationListener { splashScreenView -> splashScreenView.remove() }
}
super.onCreate(savedInstanceState)
}
}
```
{% endsamplecode %}
Then, you can reimplement the first frame in Flutter
that shows elements of your Android launch screen in
the same positions on screen.
For an example of this, check out the
[Android splash screen sample app][].
[Android Splash Screens]: {{site.android-dev}}/about/versions/12/features/splash-screen
[launch screen]: {{site.android-dev}}/topic/performance/vitals/launch-time#themed
[pre-warming a `FlutterEngine`]: /add-to-app/android/add-flutter-fragment#using-a-pre-warmed-flutterengine
[Android splash screen sample app]: {{site.repo.samples}}/tree/main/android_splash_screen
[Deprecated Splash Screen API Migration guide]: /release/breaking-changes/splash-screen-migration
[Customizing web app initialization guide]: /platform-integration/web/initialization
| website/src/platform-integration/android/splash-screen.md/0 | {
"file_path": "website/src/platform-integration/android/splash-screen.md",
"repo_id": "website",
"token_count": 2407
} | 1,285 |
---
title: Building Linux apps with Flutter
description: Platform-specific considerations for building for Linux with Flutter.
toc: true
short-title: Linux development
---
This page discusses considerations unique to building
Linux apps with Flutter, including shell integration
and preparation of apps for distribution.
## Integrating with Linux
The Linux programming interface,
comprising library functions and system calls,
is designed around the C language and ABI.
Fortunately, Dart provides `dart:ffi`,
which is designed to enable Dart programs
to efficiently call into C libraries.
FFI provides Flutter apps with the ability to
allocate native memory with `malloc` or `calloc`,
support for pointers, structs and callbacks,
and ABI types like `long` and `size_t`.
For more information about calling C libraries
from Flutter, see [C interop using `dart:ffi`][].
Many apps will benefit from using a package that
wraps the underlying library
calls in a more convenient, idiomatic Dart API.
[Canonical has built a series of packages][Canonical]
with a focus on enabling Dart and Flutter on Linux,
including support for desktop notifications,
dbus, network management, and Bluetooth.
More generally, many other [packages support Linux],
including common packages such as [`url_launcher`],
[`shared_preferences`], [`file_selector`], and
[`path_provider`].
[C interop using `dart:ffi`]: {{site.dart-site}}/guides/libraries/c-interop
[Canonical]: {{site.pub}}/publishers/canonical.com/packages
[packages support Linux]: {{site.pub}}/packages?q=platform%3Alinux
[`url_launcher`]: {{site.pub-pkg}}/url_launcher
[`shared_preferences`]: {{site.pub-pkg}}/shared_preferences
[`file_selector`]: {{site.pub-pkg}}/file_selector
[`path_provider`]: {{site.pub-pkg}}/path_provider
## Preparing Linux apps for distribution
The executable binary can be found in your project under
`build/linux/<build mode>/bundle/`. Alongside your
executable binary in the `bundle` directory there are
two directories:
* `lib` contains the required `.so` library files
* `data` contains the application's data assets,
such as fonts or images
In addition to these files, your application also
relies on various operating system libraries that
it's been compiled against.
You can see the full list by running `ldd`
against your application. For example,
assuming you have a Flutter desktop application
called `linux_desktop_test`, you could inspect
the system libraries it depends upon as follows:
```terminal
$ flutter build linux --release
$ ldd build/linux/x64/release/bundle/linux_desktop_test
```
To wrap up this application for distribution
you need to include everything in the `bundle` directory,
and make sure the Linux system you are installing
it on has all of the system libraries required.
This could be as simple as:
```terminal
$ sudo apt-get install libgtk-3-0 libblkid1 liblzma5
```
For information on publishing a Linux application
to the [Snap Store], see
[Build and release a Linux application to the Snap Store][].
[Snap Store]: https://snapcraft.io/store
[Build and release a Linux application to the Snap Store]: /deployment/linux
| website/src/platform-integration/linux/building.md/0 | {
"file_path": "website/src/platform-integration/linux/building.md",
"repo_id": "website",
"token_count": 859
} | 1,286 |
---
title: Web support for Flutter
short-title: Web
description: Details of how Flutter supports the creation of web experiences.
---
Flutter's web support delivers the same experiences on the web as on mobile.
Building on the portability of Dart, the power of the web platform and the
flexibility of the Flutter framework, you can now build apps for iOS, Android,
and the browser from the same codebase. You can compile existing Flutter code
written in Dart into a web experience because it is exactly the same Flutter
framework and **web** is just another device target for your app.
<img src="/assets/images/docs/arch-overview/web-arch.png"
alt="Flutter architecture for web"
width="100%">
Adding web support to Flutter involved implementing Flutter's
core drawing layer on top of standard browser APIs, in addition
to compiling Dart to JavaScript, instead of the ARM machine code that
is used for mobile applications. Using a combination of DOM, Canvas,
and WebAssembly, Flutter can provide a portable, high-quality,
and performant user experience across modern browsers.
We implemented the core drawing layer completely in Dart
and used Dart's optimized JavaScript compiler to compile the
Flutter core and framework along with your application
into a single, minified source file that can be deployed to
any web server.
While you can do a lot on the web,
Flutter's web support is most valuable in the
following scenarios:
**A [Progressive Web Application][] built with Flutter**
: Flutter delivers high-quality PWAs that are integrated with a user's
environment, including installation, offline support, and tailored UX.
**Single Page Application**
: Flutter's web support enables complex standalone web apps that are rich with
graphics and interactive content to reach end users on a wide variety of
devices.
**Existing mobile applications**
: Web support for Flutter provides a browser-based delivery model for existing
Flutter mobile apps.
Not every HTML scenario is ideally suited for Flutter at this time.
For example, text-rich, flow-based, static content such as blog articles
benefit from the document-centric model that the web is built around,
rather than the app-centric services that a UI framework like Flutter
can deliver. However, you _can_ use Flutter to embed interactive
experiences into these websites.
For a glimpse into how to migrate your mobile app to web, see
the following video:
<iframe width="560" height="315" src="{{site.yt.embed}}/HAstl_NkXl0" title="Learn how to move from a Mobile App to a Web App using Flutter" {{site.yt.set}}></iframe>
<a id="web"></a>
## Resources
The following resources can help you get started:
* To add web support to an existing app, or to create a
new app that includes web support, see
[Building a web application with Flutter][].
* To learn about Flutter's different web renderers (HTML and CanvasKit), see
[Web renderers][]
* To learn how to create a responsive Flutter
app, see [Creating responsive apps][].
* To view commonly asked questions and answers, see the
[web FAQ][].
* To see code examples,
check out the [web samples for Flutter][].
* To see a Flutter web app demo, check out the [Wonderous app][].
* To learn about deploying a web app, see
[Preparing an app for web release][].
* [File an issue][] on the main Flutter repo.
* You can chat and ask web-related questions on the
**#help** channel on [Discord][].
---
[Building a web application with Flutter]: /platform-integration/web/building
[Creating responsive apps]: /ui/layout/responsive/adaptive-responsive
[Discord]: https://discordapp.com/invite/yeZ6s7k
[file an issue]: https://goo.gle/flutter_web_issue
[Wonderous app]: {{site.wonderous}}/web
[Preparing an app for web release]: /deployment/web
[Progressive Web Application]: https://web.dev/progressive-web-apps/
[web FAQ]: /platform-integration/web/faq
[web samples for Flutter]: https://flutter.github.io/samples/#?platform=web
[Web renderers]: /platform-integration/web/renderers
| website/src/platform-integration/web/index.md/0 | {
"file_path": "website/src/platform-integration/web/index.md",
"repo_id": "website",
"token_count": 1052
} | 1,287 |
---
layout: toc
title: Windows
description: Content covering integration with Windows in Flutter apps.
---
| website/src/platform-integration/windows/index.md/0 | {
"file_path": "website/src/platform-integration/windows/index.md",
"repo_id": "website",
"token_count": 26
} | 1,288 |
---
title: Deprecated API removed after v2.2
description: >
After reaching end of life, the following deprecated APIs
were removed from Flutter.
---
## Summary
In accordance with Flutter's [Deprecation Policy][],
deprecated APIs that reached end of life after the
2.2 stable release have been removed.
All affected APIs have been compiled into this
primary source to aid in migration. A
[quick reference sheet][] is available as well.
[Deprecation Policy]: {{site.repo.flutter}}/wiki/Tree-hygiene#deprecation
[quick reference sheet]: /go/deprecations-removed-after-2-2
## Changes
This section lists the deprecations, listed by the affected class.
### `hasFloatingPlaceholder` of `InputDecoration` & `InputDecorationTheme`
Supported by Flutter Fix: yes
`hasFloatingPlaceholder` was deprecated in v1.13.2.
Use `floatingLabelBehavior` instead.
Where `useFloatingPlaceholder` was true, replace with `FloatingLabelBehavior.auto`.
Where `useFloatingPlaceholder` was false, replace with `FloatingLabelBehavior.never`.
This change allows more behaviors to be specified beyond the original binary
choice, adding `FloatingLabelBehavior.always` as an additional option.
**Migration guide**
Code before migration:
```dart
// InputDecoration
// Base constructor
InputDecoration(hasFloatingPlaceholder: true);
InputDecoration(hasFloatingPlaceholder: false);
// collapsed constructor
InputDecoration.collapsed(hasFloatingPlaceholder: true);
InputDecoration.collapsed(hasFloatingPlaceholder: false);
// Field access
inputDecoration.hasFloatingPlaceholder;
// InputDecorationTheme
// Base constructor
InputDecorationTheme(hasFloatingPlaceholder: true);
InputDecorationTheme(hasFloatingPlaceholder: false);
// Field access
inputDecorationTheme.hasFloatingPlaceholder;
// copyWith
inputDecorationTheme.copyWith(hasFloatingPlaceholder: false);
inputDecorationTheme.copyWith(hasFloatingPlaceholder: true);
```
Code after migration:
```dart
// InputDecoration
// Base constructor
InputDecoration(floatingLabelBehavior: FloatingLabelBehavior.auto);
InputDecoration(floatingLabelBehavior: FloatingLabelBehavior.never);
// collapsed constructor
InputDecoration.collapsed(floatingLabelBehavior: FloatingLabelBehavior.auto);
InputDecoration.collapsed(floatingLabelBehavior: FloatingLabelBehavior.never);
// Field access
inputDecoration.floatingLabelBehavior;
// InputDecorationTheme
// Base constructor
InputDecorationTheme(floatingLabelBehavior: FloatingLabelBehavior.auto);
InputDecorationTheme(floatingLabelBehavior: FloatingLabelBehavior.never);
// Field access
inputDecorationTheme.floatingLabelBehavior;
// copyWith
inputDecorationTheme.copyWith(floatingLabelBehavior: FloatingLabelBehavior.never);
inputDecorationTheme.copyWith(floatingLabelBehavior: FloatingLabelBehavior.auto);
```
**References**
API documentation:
* [`InputDecoration`][]
* [`InputDecorationTheme`][]
* [`FloatingLabelBehavior`][]
Relevant issues:
* [InputDecoration: option to always float label][]
Relevant PRs:
* Deprecated in [#46115][]
* Removed in [#83923][]
[`InputDecoration`]: {{site.api}}/flutter/material/InputDecoration-class.html
[`InputDecorationTheme`]: {{site.api}}/flutter/material/InputDecorationTheme-class.html
[`FloatingLabelBehavior`]: {{site.api}}/flutter/material/FloatingLabelBehavior-class.html
[InputDecoration: option to always float label]: {{site.repo.flutter}}/issues/30664
[#46115]: {{site.repo.flutter}}/pull/46115
[#83923]: {{site.repo.flutter}}/pull/83923
---
### `TextTheme`
Supported by Flutter Fix: yes
Several `TextStyle` properties of `TextTheme` were deprecated in v1.13.8. They
are listed in the following table alongside the appropriate replacement in the
new API.
| Deprecation | New API |
|---|---|
| display4 | headline1 |
| display3 | headline2 |
| display2 | headline3 |
| display1 | headline4 |
| headline | headline5 |
| title | headline6 |
| subhead | subtitle1 |
| body2 | bodyText1 |
| body1 | bodyText2 |
| subtitle | subtitle2 |
**Migration guide**
Code before migration:
```dart
// TextTheme
// Base constructor
TextTheme(
display4: displayStyle4,
display3: displayStyle3,
display2: displayStyle2,
display1: displayStyle1,
headline: headlineStyle,
title: titleStyle,
subhead: subheadStyle,
body2: body2Style,
body1: body1Style,
caption: captionStyle,
button: buttonStyle,
subtitle: subtitleStyle,
overline: overlineStyle,
);
// copyWith
TextTheme.copyWith(
display4: displayStyle4,
display3: displayStyle3,
display2: displayStyle2,
display1: displayStyle1,
headline: headlineStyle,
title: titleStyle,
subhead: subheadStyle,
body2: body2Style,
body1: body1Style,
caption: captionStyle,
button: buttonStyle,
subtitle: subtitleStyle,
overline: overlineStyle,
);
// Getters
TextStyle style;
style = textTheme.display4;
style = textTheme.display3;
style = textTheme.display2;
style = textTheme.display1;
style = textTheme.headline;
style = textTheme.title;
style = textTheme.subhead;
style = textTheme.body2;
style = textTheme.body1;
style = textTheme.caption;
style = textTheme.button;
style = textTheme.subtitle;
style = textTheme.overline;
```
Code after migration:
```dart
// TextTheme
// Base constructor
TextTheme(
headline1: displayStyle4,
headline2: displayStyle3,
headline3: displayStyle2,
headline4: displayStyle1,
headline5: headlineStyle,
headline6: titleStyle,
subtitle1: subheadStyle,
bodyText1: body2Style,
bodyText2: body1Style,
caption: captionStyle,
button: buttonStyle,
subtitle2: subtitleStyle,
overline: overlineStyle,
);
TextTheme.copyWith(
headline1: displayStyle4,
headline2: displayStyle3,
headline3: displayStyle2,
headline4: displayStyle1,
headline5: headlineStyle,
headline6: titleStyle,
subtitle1: subheadStyle,
bodyText1: body2Style,
bodyText2: body1Style,
caption: captionStyle,
button: buttonStyle,
subtitle2: subtitleStyle,
overline: overlineStyle,
);
TextStyle style;
style = textTheme.headline1;
style = textTheme.headline2;
style = textTheme.headline3;
style = textTheme.headline4;
style = textTheme.headline5;
style = textTheme.headline6;
style = textTheme.subtitle1;
style = textTheme.bodyText1;
style = textTheme.bodyText2;
style = textTheme.caption;
style = textTheme.button;
style = textTheme.subtitle2;
style = textTheme.overline;
```
**References**
Design document:
* [Update the TextTheme API][]
API documentation:
* [`TextTheme`][]
Relevant issues:
* [Migrate TextTheme to 2018 APIs][]
Relevant PRs:
* Deprecated in [#48547][]
* Removed in [#83924][]
[Update the TextTheme API]: /go/update-text-theme-api
[`TextTheme`]: {{site.api}}/flutter/material/TextTheme-class.html
[Migrate TextTheme to 2018 APIs]: {{site.repo.flutter}}/issues/45745
[#48547]: {{site.repo.flutter}}/pull/48547
[#83924]: {{site.repo.flutter}}/pull/83924
---
### Default `Typography`
Supported by Flutter Fix: no
The default `Typography` was deprecated in v1.13.8.
The prior default returned the text styles of the 2014 Material Design specification.
This will now result in `TextStyle`s reflecting the 2018 Material Design specification.
For the former, use the `material2014` constructor.
**Migration guide**
Code before migration:
```dart
// Formerly returned 2014 TextStyle spec
Typography();
```
Code after migration:
```dart
// Use 2018 TextStyle spec, either by default or explicitly.
Typography();
Typography.material2018();
// Use 2014 spec from former API
Typography.material2014();
```
**References**
Design document:
* [Update the TextTheme API][]
API documentation:
* [`Typography`][]
Relevant issues:
* [Migrate TextTheme to 2018 APIs][]
Relevant PRs:
* Deprecated in [#48547][]
* Removed in [#83924][]
[Update the TextTheme API]: /go/update-text-theme-api
[`Typography`]: {{site.api}}/flutter/material/Typography-class.html
[Migrate TextTheme to 2018 APIs]: {{site.repo.flutter}}/issues/45745
[#48547]: {{site.repo.flutter}}/pull/48547
[#83924]: {{site.repo.flutter}}/pull/83924
---
## Timeline
In stable release: 2.5
| website/src/release/breaking-changes/2-2-deprecations.md/0 | {
"file_path": "website/src/release/breaking-changes/2-2-deprecations.md",
"repo_id": "website",
"token_count": 2528
} | 1,289 |
---
title: Android v1 embedding app and plugin creation deprecation
description: Gradual deprecation of the Android v1 embedding.
---
## Summary
The `flutter create` templates for apps and plugins
no longer create Android wrapping based on the
v1 Android embedding as part of our gradual
Android v1 embedding deprecation process described in our
[Android Migration Summary][].
Application projects using the v1 Android embedding
are encouraged to migrate following the steps described in
[Upgrading pre 1.12 Android projects][].
Plugins targeting the v1 Android embedding are encouraged
to migrate following the instructions in
[Supporting the new Android plugins APIs][].
[Android Migration Summary]: /go/android-migration-summary
[Upgrading pre 1.12 Android projects]: {{site.repo.flutter}}/wiki/Upgrading-pre-1.12-Android-projects
[Supporting the new Android plugins APIs]: /release/breaking-changes/plugin-api-migration
## Context
In Flutter version 1.12, we launched a v2 set of
Android APIs based on the [`io.flutter.embedding`][]
package in order to enable the [add-to-app][] workflow
on Android.
Over time, we gradually deprecated the older
v1 Android embeddings based on the
[`io.flutter.app`][] package.
As of Q2 2020, only 26% of applications used the v1 embeddings.
Since the v2 embeddings were strongly established over
the 7 months since the launch of Flutter v1.12,
we disabled the creation of new app and plugin
projects using the v1 embeddings.
[add-to-app]: /add-to-app
[`io.flutter.embedding`]: https://cs.opensource.google/flutter/engine/+/master:shell/platform/android/io/flutter/embedding/
[`io.flutter.app`]: https://cs.opensource.google/flutter/engine/+/master:shell/platform/android/io/flutter/app/.
## Description of change
The `flutter config` command no longer has a
toggleable `enable-android-embedding-v2`
flag (which defaulted to true since v1.12).
All projects created with `flutter create`
and `flutter create -t plugin` exclusively use the
Android v2 embedding.
Existing v1 applications continue to work.
Existing v1 applications consuming plugins now receive
a warning prompt to migrate to v2 embedding.
Existing v1 applications consuming a plugin that targets
only the v2 embedding won't build and must migrate.
This has been the case since v1.12. However,
the likelihood of encountering this increases as
plugin developers create and publish v2 only plugins.
Existing v2 applications continue to work with or without
plugins.
Existing v2 applications consuming plugins that only
target the v1 embedding continue to receive a warning prompt.
The likelihood of encountering this decreases
as plugin developers create and publish v2 plugins.
## Migration guide
For more information,
see [Upgrading pre 1.12 Android projects][].
## Timeline
Landed in version: 1.20.0-8.0<br>
In stable release: 1.22
| website/src/release/breaking-changes/android-v1-embedding-create-deprecation.md/0 | {
"file_path": "website/src/release/breaking-changes/android-v1-embedding-create-deprecation.md",
"repo_id": "website",
"token_count": 775
} | 1,290 |
---
title: New Buttons and Button Themes
description: The basic material button classes have been replaced.
---
## Summary
A new set of basic material button widgets and themes have been added
to Flutter. The original classes have been deprecated and will
eventually be removed. The overall goal is to make buttons more
flexible, and easier to configure via constructor parameters or
themes.
The `FlatButton`, `RaisedButton` and `OutlineButton` widgets have been
replaced by `TextButton`, `ElevatedButton`, and `OutlinedButton`
respectively. Each new button class has its own theme:
`TextButtonTheme`, `ElevatedButtonTheme`, and
`OutlinedButtonTheme`. The original `ButtonTheme` class is no longer
used. The appearance of buttons is specified by a `ButtonStyle`
object, instead of a large set of widget parameters and
properties. This is roughly comparable to the way that the appearance
of text is defined with a `TextStyle` object. The new button themes
are also configured with a `ButtonStyle` object. A `ButtonStyle` is
itself just a collection of visual properties. Many of these
properties are defined with `MaterialStateProperty`, which means that
their value can depend on the button's state.
## Context
Rather than try and evolve the existing button classes and their theme
in-place, we have introduced new replacement button widgets and
themes. In addition to freeing us from the backwards compatibility
labyrinth that evolving the existing classes in-place would entail,
the new names sync Flutter back up with the Material Design spec,
which uses the new names for the button components.
<div class="table-wrapper" markdown="1">
| Old Widget | Old Theme | New Widget | New Theme |
|-----------------|---------------|------------------|-----------------------|
| `FlatButton` | `ButtonTheme` | `TextButton` | `TextButtonTheme` |
| `RaisedButton` | `ButtonTheme` | `ElevatedButton` | `ElevatedButtonTheme` |
| `OutlineButton` | `ButtonTheme` | `OutlinedButton` | `OutlinedButtonTheme` |
{:.table .table-striped .nowrap}
</div>
The new themes follow the "normalized" pattern that Flutter adopted
for new Material widgets about a year ago. Theme properties and widget
constructor parameters are null by default. Non-null theme properties
and widget parameters specify an override of the component's default
value. Implementing and documenting default values is the sole
responsibility of the button component widgets. The defaults
themselves are based primarily on the overall Theme's colorScheme and
textTheme.
Visually, the new buttons look a little different, because they match
the current Material Design spec and because their colors are
configured in terms of the overall Theme's ColorScheme. There are
other small differences in padding, rounded corner radii, and the
hover/focus/pressed feedback.
Many applications will be able to just substitute the new class names
for the old ones. Apps with golden image tests or with buttons whose
appearance has been configured with constructor parameters or with the
original `ButtonTheme` may need to consult the migration guide and the
introductory material that follows.
## API Change: ButtonStyle instead of individual style properties
Except for simple use cases, the APIs of the new button classes are
not compatible with the old classes. The visual attributes of the new
buttons and themes are configured with a single `ButtonStyle` object,
similar to how a `TextField` or a `Text` widget can be configured with a
`TextStyle` object. Most of the `ButtonStyle` properties are defined with
`MaterialStateProperty`, so that a single property can represent
different values depending on the button's pressed/focused/hovered/etc
state.
A button's `ButtonStyle` doesn't define the button's visual properties,
it defines overrides of the buttons default visual properties,
where the default properties are computed by the button widget
itself. For example, to override a `TextButton`'s default foreground
(text/icon) color for all states, one could write:
```dart
TextButton(
style: ButtonStyle(
foregroundColor: MaterialStateProperty.all<Color>(Colors.blue),
),
onPressed: () { },
child: Text('TextButton'),
)
```
This kind of override is common; however, in many cases what's also
needed are overrides for the overlay colors that the text button uses
to indicate its hovered/focus/pressed state. This can be done by
adding the `overlayColor` property to the `ButtonStyle`.
```dart
TextButton(
style: ButtonStyle(
foregroundColor: MaterialStateProperty.all<Color>(Colors.blue),
overlayColor: MaterialStateProperty.resolveWith<Color?>(
(Set<MaterialState> states) {
if (states.contains(MaterialState.hovered))
return Colors.blue.withOpacity(0.04);
if (states.contains(MaterialState.focused) ||
states.contains(MaterialState.pressed))
return Colors.blue.withOpacity(0.12);
return null; // Defer to the widget's default.
},
),
),
onPressed: () { },
child: Text('TextButton')
)
```
A color `MaterialStateProperty` only needs to return a value for the
colors whose default should be overridden. If it returns null, the
widget's default will be used instead. For example, to just override
the text button's focus overlay color:
```dart
TextButton(
style: ButtonStyle(
overlayColor: MaterialStateProperty.resolveWith<Color?>(
(Set<MaterialState> states) {
if (states.contains(MaterialState.focused))
return Colors.red;
return null; // Defer to the widget's default.
}
),
),
onPressed: () { },
child: Text('TextButton'),
)
```
### The `styleFrom()` ButtonStyle utility methods
The Material Design spec defines buttons' foreground and overlay colors in
terms of the color scheme's primary color. The primary color is
rendered at different opacities, depending on the button's state. To
simplify creating a button style that includes all of the properties
that depend on color scheme colors, each button class includes a
static styleFrom() method which constructs a `ButtonStyle` from a simple
set of values, including the `ColorScheme` colors it depends on.
This example creates a button that overrides its foreground color, as
well as its overlay color, using the specified primary color and the
opacities from the Material Design spec.
```dart
TextButton(
style: TextButton.styleFrom(
primary: Colors.blue,
),
onPressed: () { },
child: Text('TextButton'),
)
```
The `TextButton` documentation indicates that the foreground color when
the button is disabled is based on the color scheme's `onSurface`
color. To override that as well, using styleFrom():
```dart
TextButton(
style: TextButton.styleFrom(
primary: Colors.blue,
onSurface: Colors.red,
),
onPressed: null,
child: Text('TextButton'),
)
```
Using the `styleFrom()` method is the preferred way to create a
`ButtonStyle` if you're trying to create a Material Design
variation. The most flexible approach is defining a `ButtonStyle`
directly, with `MaterialStateProperty` values for the states whose
appearance you want to override.
## ButtonStyle defaults
Widgets like the new button classes _compute_ their default values
based on the overall theme's `colorScheme` and `textTheme` as well as
button's current state. In a few cases they also consider if the
overall theme's color scheme is light or dark. Each button has a
protected method that computes its default style as needed. Although
apps won't call this method directly, its API doc explains what all
of the defaults are. When a button or button theme specifies
`ButtonStyle`, only the button style's non-null properties override the
computed defaults. The button's `style` parameter overrides non-null
properties specified by the corresponding button theme. For example if
`foregroundColor` property of a `TextButton`'s style is non-null, it
overrides the same property for the `TextButonTheme`'s style.
As explained earlier, each button class includes a static method
called `styleFrom` which constructs a ButtonStyle from a simple set of
values, including the `ColorScheme` colors it depends on. In many common
cases, using `styleFrom` to create a one-off `ButtonStyle` that
overrides the defaults, is simplest. This is particularly true when
the custom style's objective is to override one of the color scheme
colors, like `primary` or `onPrimary` that the default style depends
on. For other cases you can create a `ButtonStyle` object
directly. Doing so enables you to control the value of visual
properties, like colors, for all of the button's possible states -
like pressed, hovered, disabled, and focused.
## Migration guide
Use the following information to migrate your buttons to the
new API.
### Restoring the original button visuals
In many cases it's possible to just switch from the old button class
to the new one. That's assuming that the small changes in size/shape
and the likely bigger change in colors, aren't a concern.
To preserve the original buttons' appearance in these cases, one can
define button styles that match the original as closely as you
like. For example, the following style makes a `TextButton` look
like a default `FlatButton`:
```dart
final ButtonStyle flatButtonStyle = TextButton.styleFrom(
primary: Colors.black87,
minimumSize: Size(88, 36),
padding: EdgeInsets.symmetric(horizontal: 16),
shape: const RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(2)),
),
);
TextButton(
style: flatButtonStyle,
onPressed: () { },
child: Text('Looks like a FlatButton'),
)
```
Similarly, to make an `ElevatedButton` look like a default `RaisedButton`:
```dart
final ButtonStyle raisedButtonStyle = ElevatedButton.styleFrom(
onPrimary: Colors.black87,
primary: Colors.grey[300],
minimumSize: Size(88, 36),
padding: EdgeInsets.symmetric(horizontal: 16),
shape: const RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(2)),
),
);
ElevatedButton(
style: raisedButtonStyle,
onPressed: () { },
child: Text('Looks like a RaisedButton'),
)
```
The `OutlineButton` style for `OutlinedButton` is a little more
complicated because the outline's color changes to the primary color
when the button is pressed. The outline's appearance is defined by a
`BorderSide` and you'll use a `MaterialStateProperty` to define the pressed
outline color:
```dart
final ButtonStyle outlineButtonStyle = OutlinedButton.styleFrom(
primary: Colors.black87,
minimumSize: Size(88, 36),
padding: EdgeInsets.symmetric(horizontal: 16),
shape: const RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(2)),
),
).copyWith(
side: MaterialStateProperty.resolveWith<BorderSide>(
(Set<MaterialState> states) {
if (states.contains(MaterialState.pressed))
return BorderSide(
color: Theme.of(context).colorScheme.primary,
width: 1,
);
return null; // Defer to the widget's default.
},
),
);
OutlinedButton(
style: outlineButtonStyle,
onPressed: () { },
child: Text('Looks like an OutlineButton'),
)
```
To restore the default appearance for buttons throughout an
application, you can configure the new button themes in the
application's theme:
```dart
MaterialApp(
theme: ThemeData.from(colorScheme: ColorScheme.light()).copyWith(
textButtonTheme: TextButtonThemeData(style: flatButtonStyle),
elevatedButtonTheme: ElevatedButtonThemeData(style: raisedButtonStyle),
outlinedButtonTheme: OutlinedButtonThemeData(style: outlineButtonStyle),
),
)
```
To restore the default appearance for buttons in part of an
application you can wrap a widget subtree with `TextButtonTheme`,
`ElevatedButtonTheme`, or `OutlinedButtonTheme`. For example:
```dart
TextButtonTheme(
data: TextButtonThemeData(style: flatButtonStyle),
child: myWidgetSubtree,
)
```
### Migrating buttons with custom colors
The following sections cover use of the following `FlatButton`,
`RaisedButton`, and `OutlineButton` color parameters:
```dart
textColor
disabledTextColor
color
disabledColor
focusColor
hoverColor
highlightColor*
splashColor
```
The new button classes do not support a separate highlight color
because it's no longer part of the Material Design.
#### Migrating buttons with custom foreground and background colors
Two common customizations for the original button classes are a custom
foreground color for `FlatButton`, or custom foreground and background
colors for `RaisedButton`. Producing the same result with the new
button classes is simple:
```dart
FlatButton(
textColor: Colors.red, // foreground
onPressed: () { },
child: Text('FlatButton with custom foreground/background'),
)
TextButton(
style: TextButton.styleFrom(
primary: Colors.red, // foreground
),
onPressed: () { },
child: Text('TextButton with custom foreground'),
)
```
In this case the `TextButton`'s foreground (text/icon) color as well as
its hovered/focused/pressed overlay colors will be based on
`Colors.red`. By default, the `TextButton`'s background fill color is
transparent.
Migrating a `RaisedButton` with custom foreground and background colors:
```dart
RaisedButton(
color: Colors.red, // background
textColor: Colors.white, // foreground
onPressed: () { },
child: Text('RaisedButton with custom foreground/background'),
)
ElevatedButton(
style: ElevatedButton.styleFrom(
primary: Colors.red, // background
onPrimary: Colors.white, // foreground
),
onPressed: () { },
child: Text('ElevatedButton with custom foreground/background'),
)
```
In this case the button's use of the color scheme's primary color is
reversed relative to the `TextButton`: primary is button's background
fill color and `onPrimary` is the foreground (text/icon) color.
#### Migrating buttons with custom overlay colors
Overriding a button's default focused, hovered, highlighted, or splash
colors is less common. The `FlatButton`, `RaisedButton`, and `OutlineButton`
classes have individual parameters for these state-dependent
colors. The new `TextButton`, `ElevatedButton`, and `OutlinedButton` classes
use a single `MaterialStateProperty<Color>` parameter instead. The new
buttons allow one to specify state-dependent values for all of the
colors, the original buttons only supported specifying what's now
called the "overlayColor".
```dart
FlatButton(
focusColor: Colors.red,
hoverColor: Colors.green,
splashColor: Colors.blue,
onPressed: () { },
child: Text('FlatButton with custom overlay colors'),
)
TextButton(
style: ButtonStyle(
overlayColor: MaterialStateProperty.resolveWith<Color?>(
(Set<MaterialState> states) {
if (states.contains(MaterialState.focused))
return Colors.red;
if (states.contains(MaterialState.hovered))
return Colors.green;
if (states.contains(MaterialState.pressed))
return Colors.blue;
return null; // Defer to the widget's default.
}),
),
onPressed: () { },
child: Text('TextButton with custom overlay colors'),
)
```
The new version is more flexible although less compact. In the
original version, the precedence of the different states is
implicit (and undocumented) and fixed, in the new version, it's
explicit. For an app that specified these colors frequently, the
easiest migration path would be to define one or more `ButtonStyles`
that match the example above - and just use the style parameter - or
to define a stateless wrapper widget that encapsulated the three color
parameters.
#### Migrating buttons with custom disabled colors
This is a relatively rare customization. The `FlatButton`,
`RaisedButton`, and `OutlineButton` classes have `disabledTextColor` and
`disabledColor` parameters that define the background and foreground
colors when the button's `onPressed` callback is null.
By default, all of the buttons use the color scheme's `onSurface` color,
with opacity 0.38 for the disabled foreground color. Only
`ElevatedButton` has a non-transparent background color and its default
value is the `onSurface` color with opacity 0.12. So in many cases one
can just use the `styleFrom` method to override the disabled colors:
```dart
RaisedButton(
disabledColor: Colors.red.withOpacity(0.12),
disabledTextColor: Colors.red.withOpacity(0.38),
onPressed: null,
child: Text('RaisedButton with custom disabled colors'),
),
ElevatedButton(
style: ElevatedButton.styleFrom(onSurface: Colors.red),
onPressed: null,
child: Text('ElevatedButton with custom disabled colors'),
)
```
For complete control over the disabled colors, one must define the
`ElevatedButton`'s style explicitly, in terms of
`MaterialStateProperties`:
```dart
RaisedButton(
disabledColor: Colors.red,
disabledTextColor: Colors.blue,
onPressed: null,
child: Text('RaisedButton with custom disabled colors'),
)
ElevatedButton(
style: ButtonStyle(
backgroundColor: MaterialStateProperty.resolveWith<Color?>(
(Set<MaterialState> states) {
if (states.contains(MaterialState.disabled))
return Colors.red;
return null; // Defer to the widget's default.
}),
foregroundColor: MaterialStateProperty.resolveWith<Color?>(
(Set<MaterialState> states) {
if (states.contains(MaterialState.disabled))
return Colors.blue;
return null; // Defer to the widget's default.
}),
),
onPressed: null,
child: Text('ElevatedButton with custom disabled colors'),
)
```
As with the previous case, there are obvious ways to make the new
version more compact in an app where this migration comes up often.
#### Migrating buttons with custom elevations
This is also a relatively rare customization. Typically, only
`ElevatedButton`s (originally called `RaisedButtons`)
include elevation changes. For elevations that are proportional
to a baseline elevation (per the Material Design specification),
one can override all of them quite simply.
By default, a disabled button's elevation is 0, and the remaining
states are defined relative to a baseline of 2:
```dart
disabled: 0
hovered or focused: baseline + 2
pressed: baseline + 6
```
So to migrate a `RaisedButton` for which all elevations have been
defined:
```dart
RaisedButton(
elevation: 2,
focusElevation: 4,
hoverElevation: 4,
highlightElevation: 8,
disabledElevation: 0,
onPressed: () { },
child: Text('RaisedButton with custom elevations'),
)
ElevatedButton(
style: ElevatedButton.styleFrom(elevation: 2),
onPressed: () { },
child: Text('ElevatedButton with custom elevations'),
)
```
To arbitrarily override just one elevation, like the pressed
elevation:
```dart
RaisedButton(
highlightElevation: 16,
onPressed: () { },
child: Text('RaisedButton with a custom elevation'),
)
ElevatedButton(
style: ButtonStyle(
elevation: MaterialStateProperty.resolveWith<double?>(
(Set<MaterialState> states) {
if (states.contains(MaterialState.pressed))
return 16;
return null;
}),
),
onPressed: () { },
child: Text('ElevatedButton with a custom elevation'),
)
```
#### Migrating buttons with custom shapes and borders
The original `FlatButton`, `RaisedButton`, and `OutlineButton` classes all
provide a shape parameter which defines both the button's shape and
the appearance of its outline. The corresponding new classes and their
themes support specifying the button's shape and its border
separately, with `OutlinedBorder shape` and `BorderSide side` parameters.
In this example the original `OutlineButton` version specifies the same
color for border in its highlighted (pressed) state as for other
states.
```dart
OutlineButton(
shape: StadiumBorder(),
highlightedBorderColor: Colors.red,
borderSide: BorderSide(
width: 2,
color: Colors.red
),
onPressed: () { },
child: Text('OutlineButton with custom shape and border'),
)
OutlinedButton(
style: OutlinedButton.styleFrom(
shape: StadiumBorder(),
side: BorderSide(
width: 2,
color: Colors.red
),
),
onPressed: () { },
child: Text('OutlinedButton with custom shape and border'),
)
```
Most of the new `OutlinedButton` widget's style parameters, including
its shape and border, can be specified with `MaterialStateProperty`
values, which is to say that they can have different values depending
on the button's state. To specify a different border color when the
button is pressed, do the following:
```dart
OutlineButton(
shape: StadiumBorder(),
highlightedBorderColor: Colors.blue,
borderSide: BorderSide(
width: 2,
color: Colors.red
),
onPressed: () { },
child: Text('OutlineButton with custom shape and border'),
)
OutlinedButton(
style: ButtonStyle(
shape: MaterialStateProperty.all<OutlinedBorder>(StadiumBorder()),
side: MaterialStateProperty.resolveWith<BorderSide>(
(Set<MaterialState> states) {
final Color color = states.contains(MaterialState.pressed)
? Colors.blue
: Colors.red;
return BorderSide(color: color, width: 2);
}
),
),
onPressed: () { },
child: Text('OutlinedButton with custom shape and border'),
)
```
## Timeline
Landed in version: 1.20.0-0.0.pre<br>
In stable release: 2.0.0
## References
API documentation:
* [`ButtonStyle`][]
* [`ButtonStyleButton`][]
* [`ElevatedButton`][]
* [`ElevatedButtonTheme`][]
* [`ElevatedButtonThemeData`][]
* [`OutlinedButton`][]
* [`OutlinedButtonTheme`][]
* [`OutlinedButtonThemeData`][]
* [`TextButton`][]
* [`TextButtonTheme`][]
* [`TextButtonThemeData`][]
Relevant PRs:
* [PR 59702: New Button Universe][]
* [PR 73352: Deprecated obsolete Material classes: FlatButton, RaisedButton, OutlineButton][]
[`ButtonStyle`]: {{site.api}}/flutter/material/ButtonStyle-class.html
[`ButtonStyleButton`]: {{site.api}}/flutter/material/ButtonStyleButton-class.html
[`ElevatedButton`]: {{site.api}}/flutter/material/ElevatedButton-class.html
[`ElevatedButtonTheme`]: {{site.api}}/flutter/material/ElevatedButtonTheme-class.html
[`ElevatedButtonThemeData`]: {{site.api}}/flutter/material/ElevatedButtonThemeData-class.html
[`OutlinedButton`]: {{site.api}}/flutter/material/OutlinedButton-class.html
[`OutlinedButtonTheme`]: {{site.api}}/flutter/material/OutlinedButtonTheme-class.html
[`OutlinedButtonThemeData`]: {{site.api}}/flutter/material/OutlinedButtonThemeData-class.html
[`TextButton`]: {{site.api}}/flutter/material/TextButton-class.html
[`TextButtonTheme`]: {{site.api}}/flutter/material/TextButtonTheme-class.html
[`TextButtonThemeData`]: {{site.api}}/flutter/material/TextButtonThemeData-class.html
[PR 59702: New Button Universe]: {{site.repo.flutter}}/pull/59702
[PR 73352: Deprecated obsolete Material classes: FlatButton, RaisedButton, OutlineButton]: {{site.repo.flutter}}/pull/73352
| website/src/release/breaking-changes/buttons.md/0 | {
"file_path": "website/src/release/breaking-changes/buttons.md",
"repo_id": "website",
"token_count": 6680
} | 1,291 |
---
title: TextField FocusNode attach location change
description: >
EditableText.focusNode is no longer attached to
EditableTextState's BuildContext.
---
## Summary
`EditableText.focusNode` is now attached to
a dedicated `Focus` widget below `EditableText`.
## Context
A text input field widget (`TextField`, for example)
typically owns a `FocusNode`.
When that `FocusNode` is the primary focus of the app,
events (such as key presses) are sent to the `BuildContext`
to which the `FocusNode` is attached.
The `FocusNode` also plays a roll in shortcut handling:
The `Shortcuts` widget translates key sequences into an `Intent`, and
tries to find the first suitable handler for that `Intent` starting from
the `BuildContext` to which the `FocusNode` is attached, to
the root of the widget tree. This means an `Actions` widget (that provides
handlers for different `Intent`s) won't be able to
handle any shortcut `Intent`s when the `BuildContext` that
has the primary focus is above it in the tree.
Previously for `EditableText`, the `FocusNode` was attached to
the `BuildContext` of `EditableTextState`.
Any `Actions` widgets defined in `EditableTextState` (which will be inflated
below the `BuildContext` of the `EditableTextState`) couldn't handle
shortcuts even when that `EditableText` was focused, for
the reason stated above.
## Description of change
`EditableTextState` now creates a dedicated `Focus` widget to
host `EditableText.focusNode`.
This allows `EditableTextState`s to define handlers for shortcut `Intent`s.
For instance, `EditableText` now has a handler that
handles the "deleteCharacter" intent
when the <kbd>DEL</kbd> key is pressed.
This change does not involve any public API changes but
breaks codebases relying on that particular implementation detail to
tell if a `FocusNode` is associated with a text input field.
This change does not break any builds but can introduce runtime issues, or
cause existing tests to fail.
## Migration guide
The `EditableText` widget takes a `FocusNode` as a parameter, which was
previously attached to its `EditableText`'s `BuildContext`. If you are relying
on runtime typecheck to find out if a `FocusNode` is attached to a text input
field or a selectable text field like so:
- `focusNode.context.widget is EditableText`
- `(focusNode.context as StatefulElement).state as EditableTextState`
Then please read on and consider following the migration steps to avoid breakages.
If you're not sure whether a codebase needs migration,
search for `is EditableText`, `as EditableText`, `is EditableTextState`, and
`as EditableTextState` and verify if any of the search results are doing
a typecheck or typecast on a `FocusNode.context`.
If so, then migration is needed.
To avoid performing a typecheck, or downcasting
the `BuildContext` associated with the `FocusNode` of interest, and
depending on the actual capabilities the codebase is trying to
invoke from the given `FocusNode`, fire an `Intent` from that `BuildContext`.
For instance, if you wish to update the text of the currently focused
`TextField` to a specific value, see the following example:
Code before migration:
```dart
final Widget? focusedWidget = primaryFocus?.context?.widget;
if (focusedWidget is EditableText) {
widget.controller.text = 'Updated Text';
}
```
Code after migration:
```dart
final BuildContext? focusedContext = primaryFocus?.context;
if (focusedContext != null) {
Actions.maybeInvoke(focusedContext, ReplaceTextIntent('UpdatedText'));
}
```
For a comprehensive list of `Intent`s supported by the `EditableText` widget,
refer to the documentation of the `EditableText` widget.
## Timeline
Landed in version: 2.6.0-12.0.pre<br>
In stable release: 2.10.0
## References
API documentation:
* [`EditableText`][]
Relevant PR:
* [Move text editing Actions to EditableTextState][]
[`EditableText`]: {{site.api}}/flutter/widgets/EditableText-class.html
[Move text editing Actions to EditableTextState]: {{site.repo.flutter}}/pull/90684
| website/src/release/breaking-changes/editable-text-focus-attachment.md/0 | {
"file_path": "website/src/release/breaking-changes/editable-text-focus-attachment.md",
"repo_id": "website",
"token_count": 1104
} | 1,292 |
---
title: ImageCache large images
description: >
Stop increasing the ImageCache maxByteSize to accommodate large images.
---
## Summary
The `maxByteSize` of the `ImageCache` is no longer
automatically made larger to accommodate large images.
## Context
Previously, when loading images into the `ImageCache`
that had larger byte sizes than the `ImageCache`'s `maxByteSize`,
Flutter permanently increased the `maxByteSize` value
to accommodate those images.
This logic sometimes led to bloated `maxByteSize` values that
made working in memory-limited systems more difficult.
## Description of change
The following "before" and "after" pseudocode demonstrates
the changes made to the `ImageCache` algorithm:
```dart
// Old logic pseudocode
void onLoadImage(Image image) {
if (image.byteSize > _cache.maxByteSize) {
_cache.maxByteSize = image.byteSize + 1000;
}
_cache.add(image);
while (_cache.count > _cache.maxCount
|| _cache.byteSize > _cache.maxByteSize) {
_cache.discardOldestImage();
}
}
```
```dart
// New logic pseudocode
void onLoadImage(Image image) {
if (image.byteSize < _cache.maxByteSize) {
_cache.add(image);
while (_cache.count > _cache.maxCount
|| _cache.byteSize > cache.maxByteSize) {
cache.discardOldestImage();
}
}
}
```
## Migration guide
There might be situations where the `ImageCache`
is thrashing with the new logic where it wasn't previously,
specifically if you load images that are larger than your
`cache.maxByteSize` value.
This can be remedied by one of the following approaches:
1. Increase the `ImageCache.maxByteSize` value
to accommodate larger images.
1. Adjust your image loading logic to guarantee that
the images fit nicely into the `ImageCache.maxByteSize`
value of your choosing.
1. Subclass `ImageCache`, implement your desired logic,
and create a new binding that serves up your subclass
of `ImageCache` (see the [`image_cache.dart`][] source).
## Timeline
The old algorithm is no longer supported.
Landed in version: 1.16.3<br>
In stable release: 1.17
## References
API documentation:
* [`ImageCache`][]
Relevant issue:
* [Issue 45643][]
Relevant PR:
* [Stopped increasing the cache size to accommodate large images][]
Other:
* [`ImageCache` source][]
[Stopped increasing the cache size to accommodate large images]: {{site.repo.flutter}}/pull/47387
[`ImageCache`]: {{site.api}}/flutter/painting/ImageCache-class.html
[`image_cache.dart`]: {{site.repo.flutter}}/blob/72a3d914ee5db0033332711224e728b8a5281d89/packages/flutter/lib/src/painting/image_cache.dart#L34
[`ImageCache` source]: {{site.repo.flutter}}/blob/master/packages/flutter/lib/src/painting/image_cache.dart
[Issue 45643]: {{site.repo.flutter}}/issues/45643
| website/src/release/breaking-changes/imagecache-large-images.md/0 | {
"file_path": "website/src/release/breaking-changes/imagecache-large-images.md",
"repo_id": "website",
"token_count": 881
} | 1,293 |
---
title: Default multitouch scrolling
description: >
ScrollBehaviors will now configure how Scrollables respond to
multitouch gestures.
---
## Summary
`ScrollBehavior`s now allow or disallow scrolling speeds to be affected by the
number of pointers on the screen. `ScrollBehavior.multitouchDragStrategy`, by
default, prevents multiple pointers interacting wih the scrollable at the same
time from affecting the speed of scrolling.
## Context
Prior to this change, for each pointer dragging a `Scrollable` widget, the
scroll speed would increase. This did not match platform expectations when
interacting with Flutter applications.
Now, the inherited `ScrollBehavior` manages how multiple pointers affect
scrolling widgets as specified by `ScrollBehavior.multitouchDragStrategy`. This
enum, `MultitouchDragStrategy`, can also be configured for the prior behavior.
## Description of change
This change fixed the unexpected ability to increase scroll speeds by dragging
with more than one finger.
If you have relied on the previous behavior in your application, there are
several ways to control and configure this feature.
- Extend `ScrollBehavior`, `MaterialScrollBehavior`, or `CupertinoScrollBehavior`
to modify the default behavior, overriding
`ScrollBehavior.multitouchDragStrategy`.
- With your own `ScrollBehavior`, you can apply it app-wide by setting
`MaterialApp.scrollBehavior` or `CupertinoApp.scrollBehavior`.
- Or, if you wish to only apply it to specific widgets, add a
`ScrollConfiguration` above the widget in question with your
custom `ScrollBehavior`.
Your scrollable widgets then inherit and reflect this behavior.
- Instead of creating your own `ScrollBehavior`, another option for changing
the default behavior is to copy the existing `ScrollBehavior`, and set different
`multitouchDragStrategy`.
- Create a `ScrollConfiguration` in your widget tree, and provide a modified copy
of the existing `ScrollBehavior` in the current context using `copyWith`.
To accommodate the new configuration
`DragGestureRecognizer` was updated to support `MultitouchDragStrategy` as well
in other dragging contexts.
## Migration guide
### Setting a custom `ScrollBehavior` for your application
Code before migration:
```dart
MaterialApp(
// ...
);
```
Code after migration:
```dart
class MyCustomScrollBehavior extends MaterialScrollBehavior {
// Override behavior methods and getters like multitouchDragStrategy
@override
MultitouchDragStrategy get multitouchDragStrategy => MultitouchDragStrategy.sumAllPointers;
}
// Set ScrollBehavior for an entire application.
MaterialApp(
scrollBehavior: MyCustomScrollBehavior(),
// ...
);
```
### Setting a custom `ScrollBehavior` for a specific widget
Code before migration:
```dart
final ScrollController controller = ScrollController();
ListView.builder(
controller: controller,
itemBuilder: (BuildContext context, int index) {
return Text('Item $index');
},
);
```
Code after migration:
```dart
class MyCustomScrollBehavior extends MaterialScrollBehavior {
// Override behavior methods and getters like multitouchDragStrategy
@override
MultitouchDragStrategy get multitouchDragStrategy => MultitouchDragStrategy.sumAllPointers;
}
// ScrollBehavior can be set for a specific widget.
final ScrollController controller = ScrollController();
ScrollConfiguration(
behavior: MyCustomScrollBehavior(),
child: ListView.builder(
controller: controller,
itemBuilder: (BuildContext context, int index) {
return Text('Item $index');
},
),
);
```
### Copy and modify existing `ScrollBehavior`
Code before migration:
```dart
final ScrollController controller = ScrollController();
ListView.builder(
controller: controller,
itemBuilder: (BuildContext context, int index) {
return Text('Item $index');
},
);
```
Code after migration:
```dart
// ScrollBehavior can be copied and adjusted.
final ScrollController controller = ScrollController();
ScrollConfiguration(
behavior: ScrollConfiguration.of(context).copyWith(
multitouchDragStrategy: MultitouchDragStrategy.sumAllPointers,
),
child: ListView.builder(
controller: controller,
itemBuilder: (BuildContext context, int index) {
return Text('Item $index');
},
),
);
```
## Timeline
Landed in version: 3.18.0-4.0.pre<br>
In stable release: 3.19.0
## References
API documentation:
* [`ScrollConfiguration`][]
* [`ScrollBehavior`][]
* [`MaterialScrollBehavior`][]
* [`CupertinoScrollBehavior`][]
* [`MultitouchDragStrategy`][]
* [`DragGestureRecognizer`][]
Relevant issue:
* [Issue #11884][]
Relevant PRs:
* [Introduce multi-touch drag strategies for DragGestureRecognizer][]
[`ScrollConfiguration`]: {{site.api}}/flutter/widgets/ScrollConfiguration-class.html
[`ScrollBehavior`]: {{site.api}}/flutter/widgets/ScrollBehavior-class.html
[`MaterialScrollBehavior`]: {{site.api}}/flutter/material/MaterialScrollBehavior-class.html
[`CupertinoScrollBehavior`]: {{site.api}}/flutter/cupertino/CupertinoScrollBehavior-class.html
[`MultitouchDragStrategy`]: {{site.api}}/flutter/gestures/MultitouchDragStrategy.html
[`DragGestureRecognizer`]: {{site.api}}/flutter/gestures/DragGestureRecognizer-class.html
[Issue #11884]: {{site.repo.flutter}}/issues/11884
[Introduce multi-touch drag strategies for DragGestureRecognizer]: {{site.repo.flutter}}/pull/136708
| website/src/release/breaking-changes/multi-touch-scrolling.md/0 | {
"file_path": "website/src/release/breaking-changes/multi-touch-scrolling.md",
"repo_id": "website",
"token_count": 1554
} | 1,294 |
---
title: Migration guide for `RouteInformation.location`
description: Deprecation of `RouteInformation.location` and its related APIs.
---
## Summary
`RouteInformation.location` and related APIs were deprecated
in the favor of `RouteInformation.uri`.
## Context
The [`RouteInformation`][] needs the authority information to
handle mobile deeplinks from different web domains.
The `uri` field was added to `RouteInformation` that captures
the entire deeplink information and route-related parameters
were converted to the full [`Uri`][] format.
This led to deprecation of incompatible APIs.
## Description of change
* The `RouteInformation.location` was replaced by `RouteInformation.uri`.
* The `WidgetBindingObserver.didPushRoute` was deprecated.
* The `location` parameter of `SystemNavigator.routeInformationUpdated` was
replaced by the newly added `uri` parameter.
## Migration guide
Code before migration:
```dart
const RouteInformation myRoute = RouteInformation(location: '/myroute');
```
Code after migration:
```dart
final RouteInformation myRoute = RouteInformation(uri: Uri.parse('/myroute'));
```
Code before migration:
```dart
final String myPath = myRoute.location;
```
Code after migration:
```dart
final String myPath = myRoute.uri.path;
```
Code before migration:
```dart
class MyObserverState extends State<MyWidget> with WidgetsBindingObserver {
@override
Future<bool> didPushRoute(String route) => _handleRoute(route);
}
```
Code after migration:
```dart
class MyObserverState extends State<MyWidget> with WidgetsBindingObserver {
@override
Future<bool> didPushRouteInformation(RouteInformation routeInformation) => _handleRoute(
Uri.decodeComponent(
Uri(
path: uri.path.isEmpty ? '/' : uri.path,
queryParameters: uri.queryParametersAll.isEmpty ? null : uri.queryParametersAll,
fragment: uri.fragment.isEmpty ? null : uri.fragment,
).toString(),
)
);
}
```
Code before migration:
```dart
SystemNavigator.routeInformationUpdated(location: '/myLocation');
```
Code after migration:
```dart
SystemNavigator.routeInformationUpdated(uri: Uri.parse('/myLocation'));
```
## Timeline
Landed in version: 3.10.0-13.0.pre<br>
In stable release: 3.13.0
## References
Relevant PRs:
* [PR 119968][]: Implement url support for
RouteInformation and didPushRouteInformation.
[PR 119968]: {{site.repo.flutter}}/pull/119968
[`RouteInformation`]: {{site.api}}/flutter/widgets/RouteInformation-class.html
[`Uri`]: {{site.api}}/flutter/dart-core/Uri-class.html
| website/src/release/breaking-changes/route-information-uri.md/0 | {
"file_path": "website/src/release/breaking-changes/route-information-uri.md",
"repo_id": "website",
"token_count": 798
} | 1,295 |
---
title: TextField requires a MaterialLocalizations widget
description: >
TextField now throws an assert error if there is
no MaterialLocalizations widget in the widget tree.
---
## Summary
Instances of `TextField` must have a
`MaterialLocalizations` present in the widget tree.
Trying to instantiate a `TextField` without the proper localizations
results in an assertion such as the following:
```nocode
No MaterialLocalizations found.
TextField widgets require MaterialLocalizations to be provided by a Localizations widget ancestor.
The material library uses Localizations to generate messages, labels, and abbreviations.
To introduce a MaterialLocalizations, either use a MaterialApp at the root of your application to
include them automatically, or add a Localization widget with a MaterialLocalizations delegate.
The specific widget that could not find a MaterialLocalizations ancestor was:
TextField
```
## Context
If the `TextField` descends from a `MaterialApp`, the
`DefaultMaterialLocalizations` is already instantiated
and won't require any changes to your existing code.
If the `TextField` doesn't descend from `MaterialApp`,
you can use a `Localizations` widget to
provide your own localizations.
## Migration guide
If you see an assertion error, make sure that
locale information is available to the `TextField`,
either through an ancestor `MaterialApp`
(that automatically provides `Localizations`), or
by creating your own `Localizations` widget.
Code before migration:
```dart
import 'package:flutter/material.dart';
void main() => runApp(Foo());
class Foo extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MediaQuery(
data: const MediaQueryData(),
child: Directionality(
textDirection: TextDirection.ltr,
child: Material(
child: TextField(),
),
),
);
}
}
```
Code after migration (Providing localizations using the `MaterialApp`):
```dart
import 'package:flutter/material.dart';
void main() => runApp(Foo());
class Foo extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Material(
child: TextField(),
),
);
}
}
```
Code after migration (Providing localizations via the `Localizations` widget):
```dart
import 'package:flutter/material.dart';
void main() => runApp(Foo());
class Foo extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Localizations(
locale: const Locale('en', 'US'),
delegates: const <LocalizationsDelegate<dynamic>>[
DefaultWidgetsLocalizations.delegate,
DefaultMaterialLocalizations.delegate,
],
child: MediaQuery(
data: const MediaQueryData(),
child: Directionality(
textDirection: TextDirection.ltr,
child: Material(
child: TextField(),
),
),
),
);
}
}
```
## Timeline
Landed in version: 1.20.0-1.0.pre<br>
In stable release: 1.20
## References
API documentation:
* [`TextField`][]
* [`Localizations`][]
* [`MaterialLocalizations`][]
* [`DefaultMaterialLocalizations`][]
* [`MaterialApp`][]
* [Internationalizing Flutter apps][]
Relevant PR:
* [PR 58831: Assert debugCheckHasMaterialLocalizations on TextField][]
[`TextField`]: {{site.api}}/flutter/material/TextField-class.html
[`Localizations`]: {{site.api}}/flutter/widgets/Localizations-class.html
[`MaterialLocalizations`]: {{site.api}}/flutter/material/MaterialLocalizations-class.html
[`DefaultMaterialLocalizations`]: {{site.api}}/flutter/material/DefaultMaterialLocalizations-class.html
[`MaterialApp`]: {{site.api}}/flutter/material/MaterialApp-class.html
[Internationalizing Flutter apps]: /ui/accessibility-and-internationalization/internationalization
[PR 58831: Assert debugCheckHasMaterialLocalizations on TextField]: {{site.repo.flutter}}/pull/58831
| website/src/release/breaking-changes/text-field-material-localizations.md/0 | {
"file_path": "website/src/release/breaking-changes/text-field-material-localizations.md",
"repo_id": "website",
"token_count": 1239
} | 1,296 |
---
title: Flutter compatibility policy
description: How Flutter approaches the question of breaking changes.
---
The Flutter team tries to balance the need for API stability with the
need to keep evolving APIs to fix bugs, improve API ergonomics,
and provide new features in a coherent manner.
To this end, we have created a test registry where you can provide
unit tests for your own applications or libraries that we run
on every change to help us track changes that would break
existing applications. Our commitment is that we won't make any
changes that break these tests without working with the developers of
those tests to (a) determine if the change is sufficiently valuable,
and (b) provide fixes for the code so that the tests continue to pass.
If you would like to provide tests as part of this program, please
submit a PR to the [flutter/tests repository][].
The [README][flutter-tests-readme] on that repository describes
the process in detail.
[flutter/tests repository]: {{site.github}}/flutter/tests
[flutter-tests-readme]: {{site.github}}/flutter/tests#adding-more-tests
## Announcements and migration guides
If we do make a breaking change (defined as a change that caused one
or more of these submitted tests to require changes), we will announce
the change on our [flutter-announce][]
mailing list as well as in our release notes.
We provide a list of [guides for migrating code][] affected by
breaking changes.
[flutter-announce]: {{site.groups}}/forum/#!forum/flutter-announce
[guides for migrating code]: /release/breaking-changes
## Deprecation policy
We will, on occasion, deprecate certain APIs rather than outright
break them overnight. This is independent of our compatibility policy
which is exclusively based on whether submitted tests fail, as
described above.
Deprecated APIs are removed after a migration grace period. This grace
period is one calendar year after being released on the stable channel,
or after 4 stable releases, whichever is longer.
When a deprecation does reach end of life, we follow the same procedures
listed above for making breaking changes in removing the deprecated API.
## Dart and other libraries used by Flutter
The Dart language itself has a [separate breaking-change policy][],
with announcements on [Dart announce][].
In general, the Flutter team doesn't currently have any commitment
regarding breaking changes for other dependencies.
For example, it's possible that a new version of
Flutter using a new version of Skia
(the graphics engine used by some platforms on Flutter)
or Harfbuzz (the font shaping engine used by Flutter)
would have changes that affect contributed tests.
Such changes wouldn't necessarily be accompanied by a
migration guide.
[separate breaking-change policy]: {{site.github}}/dart-lang/sdk/blob/main/docs/process/breaking-changes.md
[Dart announce]: {{site.groups}}/a/dartlang.org/g/announce
| website/src/release/compatibility-policy.md/0 | {
"file_path": "website/src/release/compatibility-policy.md",
"repo_id": "website",
"token_count": 709
} | 1,297 |
---
title: Flutter 1.9.1 release notes
short-title: 1.9.1 release notes
description: Release notes for Flutter 1.9.1.
---
Hello and welcome to another stable release of Flutter. So far this year, we've been right on target with one stable release each quarter, as per [our plan](https://github.com/flutter/flutter/wiki/Flutter-build-release-channels) (well, less of a plan and more of a goal, but still, it's been working out pretty well so far…). This release is our biggest yet, with 620 Pull Requests merged from 116 contributors. As always, the interesting PRs are listed below. And there are lots of interesting things to discuss in this release, including:
* One regression fixed but also one added
* Some breaking API changes
* Some severe issues caught and fixed
* Support for macOS Catalina and iOS 13
* A number of new features
* And more!
And to be clear, when I say "we," I mean the Flutter community as a whole. The Flutter team couldn't possibly continue to scale as we have without all of our contributors, no matter who your employer is. Thanks everyone for your contributions!
## Regressions
In this release, we fixed one regression ([37955](https://github.com/flutter/flutter/pull/37955) Update shader warm-up for recent Skia changes) and caused another ([38167](https://github.com/dart-lang/sdk/issues/38167) Incremental compiler re-issuing of errors from constant evaluator). The new regression is fixed after the 1.9.1 stable release ([00d14e7](https://github.com/dart-lang/sdk/commit/00d14e7) [CFE] Always start constant evaluation error where we are asked to evaluate), so if you're seeing it, you can choose a more recent build to bring it into your Flutter apps.
## Breaking API Changes
We try hard not to make breaking changes, but we also don't want to create unintuitive APIs as we move Flutter forward to new scenarios and new platforms. These are the breaking changes in this release. Please see the associated announcements so you can move your code forward.
[33281](https://github.com/flutter/flutter/pull/33281) ([announcement](https://groups.google.com/forum/#!msg/flutter-announce/ZmnseDOW9Wc/5K7xD0V8BwAJ)) Update TextStyle and StrutStyle height docs
[34019](https://github.com/flutter/flutter/pull/34019) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/34019%7Csort:date/flutter-announce/GBFULLQxGp4/-3uujTAaCgAJ)) Selectable Text
[34665](https://github.com/flutter/flutter/pull/34665) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/34665%7Csort:date/flutter-announce/W9KQKpf0Ves/6bdDq_U8CQAJ)) Selection handles position is off
[35110](https://github.com/flutter/flutter/pull/35110) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/35110%7Csort:date/flutter-announce/FHicLlzr9gQ/OM9KgLxMBwAJ)) Always test semantics
[35136](https://github.com/flutter/flutter/pull/35136) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/35136%7Csort:date/flutter-announce/UrhJwkaKaSc/ONoMzKrtAwAJ)) Update Dark Theme disabledColor to White38
[35785](https://github.com/flutter/flutter/pull/35785) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/35785%7Csort:date/flutter-announce/AL5ure2NWNI/4gPoziQSBAAJ)) Remove reverseDuration from implicitly animated widgets, since it's ignored.
[36030](https://github.com/flutter/flutter/pull/36030) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/36030%7Csort:date/flutter-announce/bN6vFnoVpmk/7UCOxj6LCwAJ)) [Material] Implement TooltipTheme and Tooltip.textStyle, fix Tooltip debugLabel, update Tooltip defaults
[36106](https://github.com/flutter/flutter/pull/36106) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/36106%7Csort:date/flutter-announce/Yo3WxDCria4/AgNUznoZBgAJ)) Updated ColorScheme.dark() colors to match the Material Dark theme specification
[36217](https://github.com/flutter/flutter/pull/36217) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/36217%7Csort:date/flutter-announce/3vyI_41YX44/yQy0MHAuBgAJ)) Split Mouse from Listener
[36402](https://github.com/flutter/flutter/pull/36402) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/36402%7Csort:date/flutter-announce/taTeI07sK0w/-fsJvpfCFQAJ)) Teach render objects to reuse engine layers
[36856](https://github.com/flutter/flutter/pull/36856) (no announcement) [Material] Implement TooltipTheme and Tooltip.textStyle, update Tooltip defaults
[36964](https://github.com/flutter/flutter/pull/36964) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/36964%7Csort:date/flutter-announce/IALsYuwhzNk/OaP1ijOhCwAJ)) Interactive size const
[37338](https://github.com/flutter/flutter/pull/37338) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/37338%7Csort:date/flutter-announce/ZNX-Rd6IKSQ/3K4-1_skDAAJ)) Update constructor APIs TooltipTheme, ToggleButtonsTheme, PopupMenuTheme
[37341](https://github.com/flutter/flutter/pull/37341) (no announcement) hiding original hero after hero transition
[37544](https://github.com/flutter/flutter/pull/37544) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/37544%7Csort:date/flutter-announce/Igg0DuIO6Zg/2QroNaSkDAAJ)) Replace ButtonBar.bar method with ButtonBarTheme
[37652](https://github.com/flutter/flutter/pull/37652) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/37652%7Csort:date/flutter-announce/bTliCEss-VA/CfqN9DCWEwAJ)) Change RenderObject.getTransformTo to include ancestor.
[37736](https://github.com/flutter/flutter/pull/37736) ([announcement](https://groups.google.com/forum/#!searchin/flutter-announce/37736%7Csort:date/flutter-announce/-kotruZbBDQ/vny4JjFmFQAJ)) Added a composable waitForCondition Driver/extension API
## Severe: Crash, Customer Critical and Performance Fixes
In Flutter, we try to add a little bit of quality to every release. This time around, we fixed several severe issues, including crashes, customer critical issues and performance issues.
[34907](https://github.com/flutter/flutter/pull/34907) Fixed LicensePage to close page before loaded the License causes an error
[35223](https://github.com/flutter/flutter/pull/35223) Navigator pushAndRemoveUntil Fix
[36097](https://github.com/flutter/flutter/pull/36097) Fix nested scroll view can rebuild without layout
[37033](https://github.com/flutter/flutter/pull/37033) fix debug paint crash when axis direction inverted
[37254](https://github.com/flutter/flutter/pull/37254) Clamp Scaffold's max body height when extendBody is true
[34298](https://github.com/flutter/flutter/pull/34298) Preserving SafeArea : Part 2
[37718](https://github.com/flutter/flutter/pull/37718) Adding physicalDepth to MediaQueryData & TestWindow
[35297](https://github.com/flutter/flutter/pull/35297) Fix the first frame logic in tracing and driver
## New Features
This release also brings with it two new Material widgets: the ToggleButtons widget (called a [segmented control](https://developer.apple.com/design/human-interface-guidelines/ios/controls/segmented-controls/) on iOS) and a ColorFilter widget (described below in the Text & Accessibility section). To see these widgets in action, check out short [ToggleButtons ](https://github.com/csells/flutter_toggle_buttons)and [ColorFilter](https://github.com/csells/flutter_color_filter) samples. Also, the SelectableText widget allows the user to select read-only text.
[34599](https://github.com/flutter/flutter/pull/34599) [Material] ToggleButtons
[34019](https://github.com/flutter/flutter/pull/34019) Selectable Text
[35207](https://github.com/flutter/flutter/pull/35207) refactor out selection handlers
[36030](https://github.com/flutter/flutter/pull/36030) [Material] Implement TooltipTheme and Tooltip.textStyle, fix Tooltip debugLabel, update Tooltip defaults
[36411](https://github.com/flutter/flutter/pull/36411) Implement InputDecorationTheme copyWith, ==, hashCode
[36856](https://github.com/flutter/flutter/pull/36856) [Material] Implement TooltipTheme and Tooltip.textStyle, update Tooltip defaults
[36963](https://github.com/flutter/flutter/pull/36963) Add margins to tooltips
[37266](https://github.com/flutter/flutter/pull/37266) Change the value of kMaxUnsignedSMI for the Web
[37341](https://github.com/flutter/flutter/pull/37341) hiding original hero after hero transition
[37492](https://github.com/flutter/flutter/pull/37492) Drawer edge drag width improvements
## macOS Catalina Support
With the release of macOS Catalina just around the corner, we've made sure that our tooling continues to work smoothly as you migrate to Catalina, iOS 13 and Xcode 11. I should note that **you'll want to upgrade to the Flutter 1.9.1 stable release before upgrading to Catalina**. The other order works, too, but you'll see an error when you do it that way (the [error](https://github.com/flutter/flutter/issues/33890) is benign, but still…).
[38325](https://github.com/flutter/flutter/pull/38325) refactor flutter upgrade to be 2 part, with the second part re-entrant
[cd70b](https://github.com/dart-lang/sdk/commit/ec2d06d4b9f4f0accad2b4aa841499e8e93cd70b) Use MAP_JIT when doing an mmap for executable pages (needed for macOS Catalina).
[38662](https://github.com/flutter/flutter/pull/38662) Change from using defaults to plutil for Plist parsing
[2856](https://github.com/flutter/website/issues/2856) Update "Getting Started" path setup to support zsh shell (macOS Catalina support)
[2857](https://github.com/flutter/website/issues/2857) Update "iOS Setup" page to reflect Xcode 11 UI update
[37733](https://github.com/flutter/flutter/pull/37733) Support macOS Catalina-style signing certificate names
[10010](https://github.com/flutter/engine/pull/10010) Use simarm_x64 when targeting arm
[37407](https://github.com/flutter/flutter/pull/37407) Remove multi-arch check in iOS builds
[37445](https://github.com/flutter/flutter/pull/37445) Switch iOS gen_snapshot from multi-arch binary to multiple binaries
[37647](https://github.com/flutter/flutter/pull/37647) Change priority of gen_snapshot search paths
## iOS
With over 50 PRs in this release, iOS support continues to be a big focus for Flutter, including an iOS 13 scrollbar implementation (that includes long-press, drag-from-right and vibration feedback support), an update to the CupertinoSwitch widget to match iOS 13 and continued experimentation with bitcode.
[35829](https://github.com/flutter/flutter/pull/35829) iOS 13 scrollbar
[37724](https://github.com/flutter/flutter/pull/37724) iOS 13 scrollbar vibration
[36087](https://github.com/flutter/flutter/pull/36087) Update visual style of CupertinoSwitch to match iOS 13
[38587](https://github.com/flutter/flutter/pull/38587) Improve bitcode check
[36471](https://github.com/flutter/flutter/pull/36471) Enable bitcode compilation for AOT
[36093](https://github.com/flutter/flutter/pull/36093) Reland bundle ios deps
[34676](https://github.com/flutter/flutter/pull/34676) Enable selection by default for password text field and expose api to…
[34723](https://github.com/flutter/flutter/pull/34723) CupertinoTextField vertical alignment
[34964](https://github.com/flutter/flutter/pull/34964) CupertinoTextField.onTap
[35303](https://github.com/flutter/flutter/pull/35303) fix default artifacts to exclude ios and android
[35307](https://github.com/flutter/flutter/pull/35307) Clean up host_app_ephemeral Profile build settings
[35731](https://github.com/flutter/flutter/pull/35731) Keep LLDB connection to iOS device alive while running from CLI.
[35749](https://github.com/flutter/flutter/pull/35749) add iOS build benchmarks
[35756](https://github.com/flutter/flutter/pull/35756) Remove @objc inference build setting
[35763](https://github.com/flutter/flutter/pull/35763) UIApplicationLaunchOptionsKey -> UIApplication.LaunchOptionsKey
[35833](https://github.com/flutter/flutter/pull/35833) Disable CocoaPods input and output paths in Xcode build phase for ephemeral add-to-app project
[36174](https://github.com/flutter/flutter/pull/36174) [cupertino_icons] Add glyph refs for brightness #16102
[36194](https://github.com/flutter/flutter/pull/36194) Keep LLDB connection to iOS device alive while running from CLI.
[36498](https://github.com/flutter/flutter/pull/36498) Clean up host_app_ephemeral_cocoapods Profile build settings
[36793](https://github.com/flutter/flutter/pull/36793) Vend Flutter module App.framework as a local CocoaPod pod to be installed by a host app
[36887](https://github.com/flutter/flutter/pull/36887) Fix thumb size calculation
[37026](https://github.com/flutter/flutter/pull/37026) Add support for the Kannada (kn) locale
[37048](https://github.com/flutter/flutter/pull/37048) use SizedBox instead of Container for building collapsed selection
[37276](https://github.com/flutter/flutter/pull/37276) Make podhelper.rb a template to avoid passing in the module name
[37319](https://github.com/flutter/flutter/pull/37319) resizeToAvoidBottomInset Cupertino without NavBar
[37449](https://github.com/flutter/flutter/pull/37449) If xcode_backend.sh script fails or substitute variables are missing, fail the host Xcode build
[37738](https://github.com/flutter/flutter/pull/37738) Use relative paths when installing module pods
[37809](https://github.com/flutter/flutter/pull/37809) Add autofocus parameter to widgets which use Focus widget internally
[37906](https://github.com/flutter/flutter/pull/37906) Always install the ephemeral engine copy instead of fetching from CocoaPods specs
[38593](https://github.com/flutter/flutter/pull/38593) Fix text scale factor for non-content components of Cupertino scaffolds
[38629](https://github.com/flutter/flutter/pull/38629) Handle case of a connected unpaired iOS device
[38645](https://github.com/flutter/flutter/pull/38645) Rename iOS arch for macOS release mode (macOS release mode 2 of 3)
[9075](https://github.com/flutter/engine/pull/9075) IOS Platform view transform/clipping
[9464](https://github.com/flutter/engine/pull/9464) Added shebangs to ios unit test scripts.
[9478](https://github.com/flutter/engine/pull/9478) iOS PlatformView clip path
[9491](https://github.com/flutter/engine/pull/9491) Purge caches on low memory on iOS
[9636](https://github.com/flutter/engine/pull/9636) Added shebangs to ios unit test scripts. (#9464)
[9667](https://github.com/flutter/engine/pull/9667) iOS platform view opacity
[9722](https://github.com/flutter/engine/pull/9722) Forwards iOS dark mode trait to the Flutter framework (#34441).
[9819](https://github.com/flutter/engine/pull/9819) Allow for dynamic thread merging on IOS for embedded view mutations
[9952](https://github.com/flutter/engine/pull/9952) ios: Fixed the callback for the first frame so that it isn't predicated on having a splash screen.
[10186](https://github.com/flutter/engine/pull/10186) Ensure debug-mode apps are always attached on iOS.
[10381](https://github.com/flutter/engine/pull/10381) Fix empty composing range on iOS
[10386](https://github.com/flutter/engine/pull/10386) Don't use DBC for hot-reload on iOS.
[10645](https://github.com/flutter/engine/pull/10645) Don't use DBC for hot-reload on iOS.
[10656](https://github.com/flutter/engine/pull/10656) fix iOS keyboard crash : -[__NSCFString substringWithRange:], range o…
[10662](https://github.com/flutter/engine/pull/10662) bump local podspec's ios deployment target version from 7.0 to 8.0
[10777](https://github.com/flutter/engine/pull/10777) Manually roll Skia to pull in iOS armv7 build failure fix.
[10791](https://github.com/flutter/engine/pull/10791) Re-lands platform brightness support on iOS
[10820](https://github.com/flutter/engine/pull/10820) iOS JIT support and enhancements for scenarios app
[10949](https://github.com/flutter/engine/pull/10949) Fix iOS references to PostPrerollResult
[11006](https://github.com/flutter/engine/pull/11006) On iOS report the preferred frames per second to tools via service protocol.
## Android
The biggest addition to Android this release is support for a new flutter command: 'flutter build aar'. This new build command works just like 'flutter build apk' or 'flutter build appbundle', but for plugins and module projects. By building the plugins as [AARs](https://developer.android.com/studio/projects/android-library), the Android Gradle plugin can use Jetifier to translate support libraries into AndroidX libraries for all the plugin's native code, which reduces the error rate when using AndroidX in apps.
[35217](https://github.com/flutter/flutter/pull/35217) Add flutter build aar
[36732](https://github.com/flutter/flutter/pull/36732) Flutter build aar
[10778](https://github.com/flutter/engine/pull/10778) Build JARs containing the Android embedding sources and the engine native library
[34573](https://github.com/flutter/flutter/pull/34573) Ensures flutter jar is added to all build types on plugin projects
[36695](https://github.com/flutter/flutter/pull/36695) Android visible password input type support
[36805](https://github.com/flutter/flutter/pull/36805) Allow flavors and custom build types in host app
[37194](https://github.com/flutter/flutter/pull/37194) [flutter_tool] More gracefully handle Android sdkmanager failure
[37405](https://github.com/flutter/flutter/pull/37405) Add .android/Flutter/flutter.iml to module template.
[37752](https://github.com/flutter/flutter/pull/37752) Remove dead flag gradle-dir in flutter config
[9206](https://github.com/flutter/engine/pull/9206) Android Embedding Refactor PR31: Integrate platform views with the new embedding and the plugin shim.
[9360](https://github.com/flutter/engine/pull/9360) Simplify loading of app bundles on Android
[9476](https://github.com/flutter/engine/pull/9476) fix NPE when a touch event is sent to an unknown Android platform view
[9501](https://github.com/flutter/engine/pull/9501) [android] External textures must be rescaled to fill the canvas
[9525](https://github.com/flutter/engine/pull/9525) Android Embedding Refactor PR36: Add splash screen support.
[9895](https://github.com/flutter/engine/pull/9895) Android Embedding PR37: Separated FlutterActivity and FlutterFragment via FlutterActivityAndFragmentDelegate
[9999](https://github.com/flutter/engine/pull/9999) Add support for Android's visible password input type
[10250](https://github.com/flutter/engine/pull/10250) Android Embedding Refactor 38: Removed AssetManager from DartEntrypoint.
[10413](https://github.com/flutter/engine/pull/10413) Pass Android Q insets.systemGestureInsets to Window
[10424](https://github.com/flutter/engine/pull/10424) Fix deprecation warnings in the Android embedding
[10481](https://github.com/flutter/engine/pull/10481) Android embedding refactor pr40 add static engine cache
[10771](https://github.com/flutter/engine/pull/10771) Don't use gradle daemon for building
[11001](https://github.com/flutter/engine/pull/11001) Avoid dynamic lookups of the engine library's symbols on Android
[11015](https://github.com/flutter/engine/pull/11015) Remove the output directory prefix from the Android engine JAR filename
## Material
Of course, the Material design language also continues to be a major focus for Flutter.
[34869](https://github.com/flutter/flutter/pull/34869) [Material] Properly call onChangeStart and onChangeEnd in Range Slider
[34872](https://github.com/flutter/flutter/pull/34872) [Material] Support for hovered, focused, and pressed border color on OutlineButtons
[34906](https://github.com/flutter/flutter/pull/34906) Fix unused [applicationIcon] property on [showLicensePage]
[34932](https://github.com/flutter/flutter/pull/34932) Added onChanged property to TextFormField
[35075](https://github.com/flutter/flutter/pull/35075) Allow for customizing SnackBar's content TextStyle in its theme
[35282](https://github.com/flutter/flutter/pull/35282) Add Container fallback to Ink build method
[35496](https://github.com/flutter/flutter/pull/35496) [Material] Text scale and wide label fixes for Slider and Range Slider value indicator shape
[35499](https://github.com/flutter/flutter/pull/35499) Added MaterialApp.themeMode to control which theme is used.
[35560](https://github.com/flutter/flutter/pull/35560) Support for elevation based dark theme overlay color in the Material widget
[35878](https://github.com/flutter/flutter/pull/35878) Add flag to use root navigator for showModalBottomSheet
[36028](https://github.com/flutter/flutter/pull/36028) Fix slider preferred height
[36088](https://github.com/flutter/flutter/pull/36088) Add PopupMenuTheme to enable theming color, shape, elevation, text style of Menu
[36409](https://github.com/flutter/flutter/pull/36409) Add searchFieldLabel to SearchDelegate in order to show a custom hint
[36880](https://github.com/flutter/flutter/pull/36880) [Material] Create material Banner component
[37038](https://github.com/flutter/flutter/pull/37038) Update SnackBar to the latest Material specs.
[37259](https://github.com/flutter/flutter/pull/37259) [Material] Add support for hovered, pressed, focused, and selected text color on Chips.
[37269](https://github.com/flutter/flutter/pull/37269) [Material] FAB refactor - remove unnecessary IconTheme
[37355](https://github.com/flutter/flutter/pull/37355) Added ThemeData.from() method to construct a Theme from a ColorScheme
[37403](https://github.com/flutter/flutter/pull/37403) add ontap to textformfield
[37436](https://github.com/flutter/flutter/pull/37436) Hide text selection handle after entering text
[37556](https://github.com/flutter/flutter/pull/37556) [Material] Make RawChip.selected non-nullable.
[37636](https://github.com/flutter/flutter/pull/37636) Add CheckboxListTile checkColor
[37715](https://github.com/flutter/flutter/pull/37715) Fix markdown link format
[37825](https://github.com/flutter/flutter/pull/37825) Automatic focus highlight mode for FocusManager
[37870](https://github.com/flutter/flutter/pull/37870) remove Header flag from BottomNavigationBar items
[37877](https://github.com/flutter/flutter/pull/37877) Adds DefaultTextStyle ancestor to Tooltip Overlay
[37882](https://github.com/flutter/flutter/pull/37882) Add dense property to AboutListTile
[38467](https://github.com/flutter/flutter/pull/38467) [Material] Add splashColor to FAB and FAB ThemeData
[38621](https://github.com/flutter/flutter/pull/38621) [Material] Create theme for Dividers to enable customization of thickness
[38636](https://github.com/flutter/flutter/pull/38636) Adds the arrowColor option to UserAccountsDrawerHeader (#38608)
## Text & Accessibility
The biggest change in text & accessibility for this release is the new ColorFilter support, which enables you to recolor an entire widget tree according, for example, to adjust your app for users with red/green color blindness. To see it in action, check out this [ColorFilter sample](https://github.com/csells/flutter_color_filter).
[35468](https://github.com/flutter/flutter/pull/35468) Add colorFilterLayer/Widget
[9641](https://github.com/flutter/engine/pull/9641) Let pushColorFilter accept all types of ColorFilters
[9668](https://github.com/flutter/engine/pull/9668) Refactor ColorFilter to have a native wrapper
[9789](https://github.com/flutter/engine/pull/9789) fix ColorFilter.matrix constness
[34515](https://github.com/flutter/flutter/pull/34515) OutlineInputBorder adjusts for borderRadius that is too large
[35100](https://github.com/flutter/flutter/pull/35100) Add handling of 'TextInput.clearClient' message from platform to framework (#35054).
[35219](https://github.com/flutter/flutter/pull/35219) Text selection menu show/hide cases
[35493](https://github.com/flutter/flutter/pull/35493) Do not use ideographic baseline for RenderPargraph baseline
[36974](https://github.com/flutter/flutter/pull/36974) Multiline Selection Menu Position Bug
[37042](https://github.com/flutter/flutter/pull/37042) Fix selection menu not showing after clear
[38573](https://github.com/flutter/flutter/pull/38573) Clamp scrollOffset to prevent textfield bouncing
[35487](https://github.com/flutter/flutter/pull/35487) Fix RenderFittedBox when child.size.isEmpty
[36243](https://github.com/flutter/flutter/pull/36243) Allow semantics labels to be shorter or longer than raw text
[36303](https://github.com/flutter/flutter/pull/36303) Add sync star benchmark cases
[37158](https://github.com/flutter/flutter/pull/37158) Fix Textfields in Semantics Debugger
[37828](https://github.com/flutter/flutter/pull/37828) have android_semantics_testing use adb from ENV provided android sdk
## Web (tech preview)
Work continues on adding to the technical preview of web platform support to Flutter in this release, including a flag to tell if an app is running on the web. To see it in action, check out [main.dart](https://github.com/csells/flutter_mazegen/blob/master/lib/main.dart) in the [flutter_mazegen sample](https://github.com/csells/flutter_mazegen/). To learn more, see [Flutter for web](https://docs.flutter.dev/web).
[36135](https://github.com/flutter/flutter/pull/36135) add a kIsWeb constant to foundation
[34252](https://github.com/flutter/flutter/pull/34252) Integrate dwds into flutter tool for web support
[34896](https://github.com/flutter/flutter/pull/34896) Allow multi-root web builds
[35221](https://github.com/flutter/flutter/pull/35221) Twiggle bit to exclude dev and beta from desktop and web
[36297](https://github.com/flutter/flutter/pull/36297) Add multi-line flag to semantics
[36465](https://github.com/flutter/flutter/pull/36465) Use FlutterFeatures to configure web and desktop devices
[36548](https://github.com/flutter/flutter/pull/36548) Fix the web builds by reverting version bump of build_modules
[36549](https://github.com/flutter/flutter/pull/36549) fix number encoding in message codecs for the Web
[37515](https://github.com/flutter/flutter/pull/37515) Upstream web support for IterableProperty
[37637](https://github.com/flutter/flutter/pull/37637) don't call Platform.operatingSystem in RenderView diagnostics
[37638](https://github.com/flutter/flutter/pull/37638) [web][upstream] Fix debugPrintStack for web platform
[37658](https://github.com/flutter/flutter/pull/37658) fix windows path for dwds/web builds
[37712](https://github.com/flutter/flutter/pull/37712) [web][upstream] Optimize InactiveElements deactivation
[37812](https://github.com/flutter/flutter/pull/37812) [web][upstream] Don't register exit/saveCompilationTrace for web platform since they are not available
[37815](https://github.com/flutter/flutter/pull/37815) Restructure resident web runner usage to avoid SDK users that don't support dwds
[38499](https://github.com/flutter/flutter/pull/38499) Update build web compilers and configure libraries
## Desktop (experimental)
We continue to move forward with the experimental support for the desktop platform in Flutter. If you'd like to take part in the experiment, see [Flutter Desktop shells](https://docs.flutter.dev/desktop).
[32770](https://github.com/flutter/flutter/pull/32770) Dismiss modal with any button press
[34660](https://github.com/flutter/flutter/pull/34660) Add --target support for Windows and Linux
[34712](https://github.com/flutter/flutter/pull/34712) Fix FocusTraversalPolicy makes focus lost
[34752](https://github.com/flutter/flutter/pull/34752) [linux] Receives the unmodified characters obtained from GLFW
[35495](https://github.com/flutter/flutter/pull/35495) mark windows and macos chrome dev mode as flaky
[36197](https://github.com/flutter/flutter/pull/36197) Fix windows, exclude widgets from others
[36722](https://github.com/flutter/flutter/pull/36722) Skip flaky test windows
[36784](https://github.com/flutter/flutter/pull/36784) [flutter_tool] Improve Windows flutter clean error message
[36845](https://github.com/flutter/flutter/pull/36845) Improve Windows build failure message
[36987](https://github.com/flutter/flutter/pull/36987) Flutter assemble for macos take 2!
[37211](https://github.com/flutter/flutter/pull/37211) Don't enable scroll wheel when scrolling is off
[37342](https://github.com/flutter/flutter/pull/37342) Fix mouse region crash when using closures
[37344](https://github.com/flutter/flutter/pull/37344) Fix mouse region double render
[37351](https://github.com/flutter/flutter/pull/37351) fix errors caught by roll of macOS assemble
[37365](https://github.com/flutter/flutter/pull/37365) only build macOS kernel in debug mode
[37425](https://github.com/flutter/flutter/pull/37425) Support for macOS release mode (1 of 3)
[37509](https://github.com/flutter/flutter/pull/37509) Use macOS ephemeral directory for Pod env script
[37664](https://github.com/flutter/flutter/pull/37664) Partial macOS assemble revert
[37891](https://github.com/flutter/flutter/pull/37891) Focus debug
[38651](https://github.com/flutter/flutter/pull/38651) Update the macOS Podfile template platform version
[9654](https://github.com/flutter/engine/pull/9654) Begin separating macOS engine from view controller
[9672](https://github.com/flutter/engine/pull/9672) Add FLEDartProject for macOS embedding
[9745](https://github.com/flutter/engine/pull/9745) Fix windows test by not attempting to open a directory as a file.
[9799](https://github.com/flutter/engine/pull/9799) Update buildroot to c4df4a7b to pull in MSVC 2017 Update 9 on Windows.
[9835](https://github.com/flutter/engine/pull/9835) [Windows] Alternative Windows shell platform implementation
[9953](https://github.com/flutter/engine/pull/9953) [macos] Add reply to binary messenger
[10009](https://github.com/flutter/engine/pull/10009) [macos] Revert check on FlutterCodecs and refactor message function]
[10189](https://github.com/flutter/engine/pull/10189) [macos] Reland function refactor
[11010](https://github.com/flutter/engine/pull/11010) Rename macOS FLE* classes to Flutter*
[36546](https://github.com/flutter/flutter/pull/36546) Unskip date_picker_test on Windows as underlying issue 19696 was fixed.
## Framework
The core framework for Flutter saw several important features in this release, including support for an additional 24 new locales (ranging [from Afrikaans to Zulu](https://github.com/flutter/flutter/pull/36589)).
[36589](https://github.com/flutter/flutter/pull/36589) Update Localizations: added 24 new locales (reprise)
[33936](https://github.com/flutter/flutter/pull/33936) New parameter for RawGestureDetector to customize semantics mapping
[34202](https://github.com/flutter/flutter/pull/34202) Remove _debugWillReattachChildren assertions from _TableElement
[34626](https://github.com/flutter/flutter/pull/34626) AsyncSnapshot.data to throw if error or no data
[34895](https://github.com/flutter/flutter/pull/34895) Remove flutter_tools support for old AOT snapshotting
[34919](https://github.com/flutter/flutter/pull/34919) Remove duplicate error parts
[35132](https://github.com/flutter/flutter/pull/35132) Reduce allocations by reusing a matrix for transient transforms in _transformRect
[35143](https://github.com/flutter/flutter/pull/35143) More HttpClientResponse Uint8List fixes
[35149](https://github.com/flutter/flutter/pull/35149) More HttpClientResponse implements Stream<Uint8List> fixes
[35232](https://github.com/flutter/flutter/pull/35232) New benchmark: Gesture semantics
[35233](https://github.com/flutter/flutter/pull/35233) Attempt skipping coverage shard if tools did not change
[35245](https://github.com/flutter/flutter/pull/35245) More preparation for HttpClientResponse implements Uint8List
[35246](https://github.com/flutter/flutter/pull/35246) attempt to not skip coverage on post commit
[35263](https://github.com/flutter/flutter/pull/35263) remove unnecessary ..toList()
[35280](https://github.com/flutter/flutter/pull/35280) benchmarkWidgets.semanticsEnabled default false.
[35288](https://github.com/flutter/flutter/pull/35288) Apply coverage skip math correctly
[35408](https://github.com/flutter/flutter/pull/35408) Remove print
[35482](https://github.com/flutter/flutter/pull/35482) Use the new service protocol message names
[35491](https://github.com/flutter/flutter/pull/35491) Include tags in SemanticsNode debug properties
[35646](https://github.com/flutter/flutter/pull/35646) Prepare for Socket implements Stream
[35725](https://github.com/flutter/flutter/pull/35725) Update annotated region findAll implementation to use Iterables directly.
[35750](https://github.com/flutter/flutter/pull/35750) use sentence case in error message titles
[35762](https://github.com/flutter/flutter/pull/35762) Refactor keymapping for resident_runner
[35828](https://github.com/flutter/flutter/pull/35828) Cleanup widgets/sliver_persistent_header.dart with resolution of dart-lang/sdk#31543
[35913](https://github.com/flutter/flutter/pull/35913) Change focus example to be more canonical (and correct)
[35932](https://github.com/flutter/flutter/pull/35932) Upgraded framework packages with 'flutter update-packages --force-upgrade'.
[35979](https://github.com/flutter/flutter/pull/35979) Optimizes gesture recognizer fixes #35658
[36262](https://github.com/flutter/flutter/pull/36262) Prevents infinite loop in Table._computeColumnWidths
[36302](https://github.com/flutter/flutter/pull/36302) Issues/30526 gc
[36333](https://github.com/flutter/flutter/pull/36333) fix sliver fixed pinned appbar
[36396](https://github.com/flutter/flutter/pull/36396) Optimize the transformRect and transformPoint methods in matrix_utils.
[36482](https://github.com/flutter/flutter/pull/36482) Sped up shader warmup by only drawing on a 100x100 surface
[36493](https://github.com/flutter/flutter/pull/36493) Fixes sliver list does not layout firstchild when child reordered
[36503](https://github.com/flutter/flutter/pull/36503) Disabling Firebase Test Lab smoke test to unblock autoroller
[36698](https://github.com/flutter/flutter/pull/36698) fixes iphone force press keyboard select crashes
[36768](https://github.com/flutter/flutter/pull/36768) add an error count field to the Flutter.Error event
[36857](https://github.com/flutter/flutter/pull/36857) Ensure user-thrown errors have ErrorSummary nodes
[36867](https://github.com/flutter/flutter/pull/36867) Add reference to StrutStyle from TextStyle
[36955](https://github.com/flutter/flutter/pull/36955) Extract common PlatformView functionality: Painting and Semantics
[37187](https://github.com/flutter/flutter/pull/37187) use FlutterError in MultiChildRenderObjectWidget
[37275](https://github.com/flutter/flutter/pull/37275) Optimize the transformRect and transformPoint methods in matrix_utils…
[37479](https://github.com/flutter/flutter/pull/37479) Remove bogus code in ContainerParentDataMixin.detach
[37497](https://github.com/flutter/flutter/pull/37497) Extract common PlatformView functionality: Gesture and PointerEvent
[37703](https://github.com/flutter/flutter/pull/37703) PlatformViewLink, handling creation of the PlatformViewSurface and dispose PlatformViewController
[37790](https://github.com/flutter/flutter/pull/37790) Doc: Image.memory only accepts compressed format
[37880](https://github.com/flutter/flutter/pull/37880) reduce mac workload
[38441](https://github.com/flutter/flutter/pull/38441) Fix getOffsetToReveal for growthDirection reversed and AxisDirection down or right
[38463](https://github.com/flutter/flutter/pull/38463) Do not construct arguments to _focusDebug when running in non-debug modes
[38639](https://github.com/flutter/flutter/pull/38639) PlatformViewLink. cached surface should be a Widget type
[38686](https://github.com/flutter/flutter/pull/38686) Rename patent file
[38704](https://github.com/flutter/flutter/pull/38704) Adds canRequestFocus toggle to FocusNode
[38710](https://github.com/flutter/flutter/pull/38710) PlatformViewLink: Rename CreatePlatformViewController to CreatePlatformViewCallback
[35335](https://github.com/flutter/flutter/pull/35335) Using custom exception class for network loading error
[35574](https://github.com/flutter/flutter/pull/35574) Fix semantics for floating pinned sliver app bar
[35810](https://github.com/flutter/flutter/pull/35810) SliverFillRemaining accounts for child size when hasScrollBody is false
[35941](https://github.com/flutter/flutter/pull/35941) SliverLayoutBuilder
## Engine
The core engine continues to see many improvements across the board in this release.
[9041](https://github.com/flutter/engine/pull/9041) TextStyle.height property as a multiple of font size instead of multiple of ascent+descent+leading.
[9089](https://github.com/flutter/engine/pull/9089) Wire up custom event loop interop for the GLFW embedder.
[9329](https://github.com/flutter/engine/pull/9329) Fixed memory leak by way of accidental retain on implicit self
[9403](https://github.com/flutter/engine/pull/9403) Remove variants of ParagraphBuilder::AddText that are not used within the engine
[9419](https://github.com/flutter/engine/pull/9419) Has a binary messenger
[9423](https://github.com/flutter/engine/pull/9423) Don't hang to a platform view's input connection after it's disposed
[9424](https://github.com/flutter/engine/pull/9424) Send timings of the first frame without batching
[9431](https://github.com/flutter/engine/pull/9431) Generate weak pointers only in the platform thread
[9436](https://github.com/flutter/engine/pull/9436) Add the functionality to merge and unmerge MessageLoopTaskQueues
[9439](https://github.com/flutter/engine/pull/9439) Eliminate unused import in FlutterView
[9452](https://github.com/flutter/engine/pull/9452) Convert RRect.scaleRadii to public method
[9456](https://github.com/flutter/engine/pull/9456) Made sure that the run_tests script returns the right error code.
[9459](https://github.com/flutter/engine/pull/9459) Remove unused/unimplemented shell constructor
[9460](https://github.com/flutter/engine/pull/9460) Fixed logLevel filter bug so that filter now works as expected.
[9461](https://github.com/flutter/engine/pull/9461) Adds API for retaining intermediate engine layers
[9463](https://github.com/flutter/engine/pull/9463) Removed unused imports in new embedding.
[9466](https://github.com/flutter/engine/pull/9466) Re-enable the Wuffs GIF decoder
[9468](https://github.com/flutter/engine/pull/9468) Manually draw remainder curve for wavy decorations
[9485](https://github.com/flutter/engine/pull/9485) Add --observatory-host switch
[9486](https://github.com/flutter/engine/pull/9486) Rework image & texture management to use concurrent message queues.
[9489](https://github.com/flutter/engine/pull/9489) Handle ambiguous directionality of final trailing whitespace in mixed bidi text
[9490](https://github.com/flutter/engine/pull/9490) fix a bug where the platform view's transform is not reset before set frame
[9493](https://github.com/flutter/engine/pull/9493) Run benchmarks on try jobs.
[9495](https://github.com/flutter/engine/pull/9495) fix build breakage on [PlatformViews.mm](http://platformviews.mm/)
[9498](https://github.com/flutter/engine/pull/9498) Notify framework to clear input connection when app is backgrounded (#35054).
[9503](https://github.com/flutter/engine/pull/9503) Improve caching limits for Skia
[9506](https://github.com/flutter/engine/pull/9506) Synchronize main thread and gpu thread for first render frame
[9508](https://github.com/flutter/engine/pull/9508) Support image filter on paint
[9532](https://github.com/flutter/engine/pull/9532) fix FlutterOverlayView doesn't remove from superview in some cases
[9556](https://github.com/flutter/engine/pull/9556) Minimal integration with the Skia text shaper module
[9561](https://github.com/flutter/engine/pull/9561) libtxt: fix reference counting of SkFontStyleSets held by font asset providers
[9585](https://github.com/flutter/engine/pull/9585) Fix a race in the embedder accessibility unit test
[9589](https://github.com/flutter/engine/pull/9589) Fixes a plugin overwrite bug in the plugin shim system.
[9590](https://github.com/flutter/engine/pull/9590) Apply patches that have landed in topaz since we ported the runners to the engine repo
[9591](https://github.com/flutter/engine/pull/9591) Document various classes in //flutter/shell/common.
[9632](https://github.com/flutter/engine/pull/9632) Added Doxyfile.
[9633](https://github.com/flutter/engine/pull/9633) Cherry-pick fix for flutter/flutter#35291
[9640](https://github.com/flutter/engine/pull/9640) make EmbeddedViewParams a unique ptr
[9642](https://github.com/flutter/engine/pull/9642) Fix warning about settings unavailable GN arg build_glfw_shell
[9651](https://github.com/flutter/engine/pull/9651) Move the mutators stack handling to preroll
[9652](https://github.com/flutter/engine/pull/9652) Pipeline allows continuations that can produce to front
[9653](https://github.com/flutter/engine/pull/9653) External view embedder can tell if embedded views have mutated
[9655](https://github.com/flutter/engine/pull/9655) Allow embedders to add callbacks for responses to platform messages from the framework.
[9660](https://github.com/flutter/engine/pull/9660) ExternalViewEmbedder can CancelFrame after pre-roll
[9661](https://github.com/flutter/engine/pull/9661) Raster now returns an enum rather than boolean
[9663](https://github.com/flutter/engine/pull/9663) Mutators Stack refactoring
[9685](https://github.com/flutter/engine/pull/9685) fix Picture.toImage return type check and api conform test.
[9698](https://github.com/flutter/engine/pull/9698) Ensure that platform messages without response handles can be dispatched.
[9713](https://github.com/flutter/engine/pull/9713) Explain why OpacityLayer has an offset field
[9717](https://github.com/flutter/engine/pull/9717) Fixed logLevel filter bug so that filter now works as expected. (#9460)
[9721](https://github.com/flutter/engine/pull/9721) Add comments to differentiate two cache paths
[9725](https://github.com/flutter/engine/pull/9725) Make the license script compatible with recently changed Dart I/O stream APIs
[9727](https://github.com/flutter/engine/pull/9727) Add hooks for InputConnection lock and unlocking
[9734](https://github.com/flutter/engine/pull/9734) Fix backspace crash on Chinese devices
[9737](https://github.com/flutter/engine/pull/9737) Use libc++ variant of string view and remove the FML variant.
[9741](https://github.com/flutter/engine/pull/9741) Make FLEViewController's view an internal detail
[9747](https://github.com/flutter/engine/pull/9747) Remove get engine
[9750](https://github.com/flutter/engine/pull/9750) FLEViewController/Engine API changes
[9758](https://github.com/flutter/engine/pull/9758) Include SkParagraph headers only when the enable-skshaper flag is on
[9762](https://github.com/flutter/engine/pull/9762) Fall back to a fully qualified path to [libapp.so](http://libapp.so/) if the library can not be loaded by name
[9767](https://github.com/flutter/engine/pull/9767) Un-deprecated FlutterViewController's binaryMessenger.
[9769](https://github.com/flutter/engine/pull/9769) Document //flutter/shell/common/engine.
[9772](https://github.com/flutter/engine/pull/9772) fix objcdoc generation
[9781](https://github.com/flutter/engine/pull/9781) SendPlatformMessage allow null message value
[9797](https://github.com/flutter/engine/pull/9797) Remove breaking asserts
[9808](https://github.com/flutter/engine/pull/9808) Document FontFeature class
[9809](https://github.com/flutter/engine/pull/9809) Document //flutter/shell/common/rasterizer
[9813](https://github.com/flutter/engine/pull/9813) Made Picture::toImage happen on the IO thread with no need for an onscreen surface.
[9815](https://github.com/flutter/engine/pull/9815) Made the persistent cache's directory a const pointer.
[9816](https://github.com/flutter/engine/pull/9816) Only release the image data in the unit-test once Skia has accepted ownership of it.
[9825](https://github.com/flutter/engine/pull/9825) In a single frame codec, release the encoded image buffer after giving it to the decoder
[9828](https://github.com/flutter/engine/pull/9828) Make the virtual display's window translucent
[9847](https://github.com/flutter/engine/pull/9847) Started adding the engine hash to frameworks' Info.plist.
[9849](https://github.com/flutter/engine/pull/9849) Preserve the alpha for VD content by setting a transparent background.
[9850](https://github.com/flutter/engine/pull/9850) Add multi-line flag to semantics
[9851](https://github.com/flutter/engine/pull/9851) Add a macro for prefixing embedder.h symbols
[9855](https://github.com/flutter/engine/pull/9855) Fix missing assignment to _allowHeadlessExecution
[9859](https://github.com/flutter/engine/pull/9859) Fix justify for RTL paragraphs.
[9867](https://github.com/flutter/engine/pull/9867) Fixed error in generated xml Info.plist.
[9873](https://github.com/flutter/engine/pull/9873) Add clang version to Info.plist
[9875](https://github.com/flutter/engine/pull/9875) Simplify buildtools
[9890](https://github.com/flutter/engine/pull/9890) Log dlopen errors only in debug mode
[9893](https://github.com/flutter/engine/pull/9893) Removed logic from FlutterAppDelegate into FlutterPluginAppLifeCycleDelegate
[9894](https://github.com/flutter/engine/pull/9894) Add the isMultiline semantics flag to values
[9896](https://github.com/flutter/engine/pull/9896) Capture stderr for ninja command
[9901](https://github.com/flutter/engine/pull/9901) Handle decompressed images in InstantiateImageCodec
[9905](https://github.com/flutter/engine/pull/9905) Respect EXIF information while decompressing images.
[9906](https://github.com/flutter/engine/pull/9906) Update libcxx & libcxxabi to HEAD in prep for compiler upgrade.
[9919](https://github.com/flutter/engine/pull/9919) Removed unused method.
[9920](https://github.com/flutter/engine/pull/9920) Fix caching of Locale.toString
[9922](https://github.com/flutter/engine/pull/9922) Split out lifecycle protocol
[9923](https://github.com/flutter/engine/pull/9923) Fix failure of the onReportTimings window hook test
[9924](https://github.com/flutter/engine/pull/9924) Don't try to use unset assets_dir setting
[9925](https://github.com/flutter/engine/pull/9925) Fix the geometry test to reflect that OffsetBase comparison operators are a partial ordering
[9927](https://github.com/flutter/engine/pull/9927) Update Buildroot Version
[9929](https://github.com/flutter/engine/pull/9929) Update the exception thrown for invalid data in the codec test
[9931](https://github.com/flutter/engine/pull/9931) Fix reentrancy handling in SingleFrameCodec
[9932](https://github.com/flutter/engine/pull/9932) Exit flutter_tester with an error code on an unhandled exception
[9934](https://github.com/flutter/engine/pull/9934) Updates to the engine test runner script
[9935](https://github.com/flutter/engine/pull/9935) Fix backspace crash on Chinese devices (#9734)
[9936](https://github.com/flutter/engine/pull/9936) Move development.key from buildroot
[9937](https://github.com/flutter/engine/pull/9937) [platform view] do not make clipping view and interceptor view clipToBounds
[9938](https://github.com/flutter/engine/pull/9938) Removed PlatformViewsController if-statements from TextInputPlugin (#34286).
[9939](https://github.com/flutter/engine/pull/9939) Added hasRenderedFirstFrame() to old FlutterView for Espresso (#36211).
[9948](https://github.com/flutter/engine/pull/9948) [glfw] Enables replies on binary messenger in glfw embedder
[9958](https://github.com/flutter/engine/pull/9958) Clean up cirrus.yml file a little
[9961](https://github.com/flutter/engine/pull/9961) Fix return type of assert function in gradient_test
[9977](https://github.com/flutter/engine/pull/9977) Fix flutter/flutter #34791
[9987](https://github.com/flutter/engine/pull/9987) Update GN to git_revision:152c5144ceed9592c20f0c8fd55769646077569b
[10012](https://github.com/flutter/engine/pull/10012) Undelete used method
[10021](https://github.com/flutter/engine/pull/10021) Added a DartExecutor API for querying ## of pending channel callbacks
[10056](https://github.com/flutter/engine/pull/10056) Update .cirrus.yml
[10063](https://github.com/flutter/engine/pull/10063) Track clusters and return cluster boundaries in getGlyphPositionForCoordinates (emoji fix)
[10064](https://github.com/flutter/engine/pull/10064) Disable DartLifecycleTest::ShuttingDownTheVMShutsDownAllIsolates in runtime_unittests.
[10068](https://github.com/flutter/engine/pull/10068) Fixed memory leak with engine registrars.
[10069](https://github.com/flutter/engine/pull/10069) Enable consts from environment in DDK for flutter_web
[10073](https://github.com/flutter/engine/pull/10073) Basic structure for flutter_jit_runner far
[10074](https://github.com/flutter/engine/pull/10074) Change ParagraphBuilder to replace the parent style's font families with the child style's font families
[10075](https://github.com/flutter/engine/pull/10075) Change flutter runner target for LUCI
[10078](https://github.com/flutter/engine/pull/10078) One more luci fix
[10109](https://github.com/flutter/engine/pull/10109) Cache font family lookups that fail to obtain a font collection
[10127](https://github.com/flutter/engine/pull/10127) Track detailed LibTxt metrics
[10128](https://github.com/flutter/engine/pull/10128) Started linking the test targets against Flutter.
[10151](https://github.com/flutter/engine/pull/10151) [fucshia] fix name to reflect the cmx file
[10155](https://github.com/flutter/engine/pull/10155) src/third_party/dart a2aec5eb06...86dba81dec
[10172](https://github.com/flutter/engine/pull/10172) [dart_runner] Rename dart to dart runner
[10176](https://github.com/flutter/engine/pull/10176) Add suggested Java changes from flutter roll
[10178](https://github.com/flutter/engine/pull/10178) Removed unnecessary call to find the App.framework.
[10179](https://github.com/flutter/engine/pull/10179) [dart_runner] dart jit runner and dart jit product runner
[10195](https://github.com/flutter/engine/pull/10195) Allow embedder controlled composition of Flutter layers.
[10235](https://github.com/flutter/engine/pull/10235) Deprecate FlutterView#enableTransparentBackground
[10242](https://github.com/flutter/engine/pull/10242) Remove Dead Scenic Clipping Code Path.
[10265](https://github.com/flutter/engine/pull/10265) [dart-roll] Roll dart sdk to 80c4954d4d1d2a257005793d83b601f3ff2997a2
[10273](https://github.com/flutter/engine/pull/10273) Remove one last final call to AddPart()
[10282](https://github.com/flutter/engine/pull/10282) Export FFI from sky_engine.
[10295](https://github.com/flutter/engine/pull/10295) Fix memory overrun in minikin patch
[10296](https://github.com/flutter/engine/pull/10296) fix CI
[10297](https://github.com/flutter/engine/pull/10297) Ensure that the SingleFrameCodec stays alive until the ImageDecoder invokes its callback
[10298](https://github.com/flutter/engine/pull/10298) Fix red build again
[10303](https://github.com/flutter/engine/pull/10303) Make tree green for real this time, I promise.
[10414](https://github.com/flutter/engine/pull/10414) expose max depth on Window
[10419](https://github.com/flutter/engine/pull/10419) Make kernel compiler use host toolchain
[10423](https://github.com/flutter/engine/pull/10423) Fix mac gen_snapshot uploader
[10430](https://github.com/flutter/engine/pull/10430) Add copy_gen_snapshots.py tool
[10477](https://github.com/flutter/engine/pull/10477) Add #else, #endif condition comments
[10479](https://github.com/flutter/engine/pull/10479) Delete unused create_macos_gen_snapshot.py script
[10485](https://github.com/flutter/engine/pull/10485) Remove semi-redundant try-jobs.
[10629](https://github.com/flutter/engine/pull/10629) Fix engine platformviewscontroller leak
[10637](https://github.com/flutter/engine/pull/10637) Document the thread test fixture.
[10644](https://github.com/flutter/engine/pull/10644) [flutter_runner] Port: Add connectToService, wrapping fdio_ns_connect.
[10652](https://github.com/flutter/engine/pull/10652) Allow embedders to control Dart VM lifecycle on engine shutdown.
[10674](https://github.com/flutter/engine/pull/10674) When setting up AOT snapshots from symbol references, make buffer sizes optional.
[10675](https://github.com/flutter/engine/pull/10675) Improvements to the flutter GDB script
[10773](https://github.com/flutter/engine/pull/10773) Remove use of the deprecated AccessibilityNodeInfo boundsInParent API
[10776](https://github.com/flutter/engine/pull/10776) rename stub_ui to web_ui
[10780](https://github.com/flutter/engine/pull/10780) [flutter_runner] Improve frame scheduling
[10781](https://github.com/flutter/engine/pull/10781) [flutter] Create the compositor context on the GPU task runner.
[10782](https://github.com/flutter/engine/pull/10782) Update license script to handle ANGLE
[10783](https://github.com/flutter/engine/pull/10783) Make firebase test more LUCI friendly
[10786](https://github.com/flutter/engine/pull/10786) Remove 3 semi-redundant try-jobs
[10787](https://github.com/flutter/engine/pull/10787) Change call to |AddPart| to |AddChild|
[10788](https://github.com/flutter/engine/pull/10788) Wire up a concurrent message loop backed SkExecutor for Skia.
[10797](https://github.com/flutter/engine/pull/10797) Rename artifacts so they match the Maven convention
[10799](https://github.com/flutter/engine/pull/10799) Add a test for creating images from bytes.
[10808](https://github.com/flutter/engine/pull/10808) Remove flutter_kernel_sdk dart script
[10809](https://github.com/flutter/engine/pull/10809) [dart:zircon] Porting Cache re-usable handle wait objects
[10815](https://github.com/flutter/engine/pull/10815) Return an empty mapping for an empty file asset
[10816](https://github.com/flutter/engine/pull/10816) Add firstFrameDidRender to FlutterViewController
[10823](https://github.com/flutter/engine/pull/10823) Expose isolateId for engine
[10941](https://github.com/flutter/engine/pull/10941) Report test failures in run_tests.py
[10952](https://github.com/flutter/engine/pull/10952) Change SemanticsNode#children lists to be non-null
[10955](https://github.com/flutter/engine/pull/10955) Fix format
[10956](https://github.com/flutter/engine/pull/10956) Increase the license block scan from 5k to 6k
[11002](https://github.com/flutter/engine/pull/11002) Remove a tracing macro with a dangling pointer
[11004](https://github.com/flutter/engine/pull/11004) Trace RasterCacheResult::Draw
[11005](https://github.com/flutter/engine/pull/11005) Drop firebase test from Cirrus
[11007](https://github.com/flutter/engine/pull/11007) Update [README.md](http://readme.md/)
[11011](https://github.com/flutter/engine/pull/11011) Initialize the engine in the running state to match the animator's default state
[11012](https://github.com/flutter/engine/pull/11012) Remove the ParagraphImpl class from the text API
[11013](https://github.com/flutter/engine/pull/11013) Remove ability to override mac_sdk_path in flutter/tools/gn
[11024](https://github.com/flutter/engine/pull/11024) Add _glfw versions of the GLFW desktop libraries
[11027](https://github.com/flutter/engine/pull/11027) Fix first frame logic
[11029](https://github.com/flutter/engine/pull/11029) Disable a deprecation warning for use of a TaskDescription constructor for older platforms
[11033](https://github.com/flutter/engine/pull/11033) remove OS version
[11034](https://github.com/flutter/engine/pull/11034) Show all license diffs
[11038](https://github.com/flutter/engine/pull/11038) Make JIT work on iPhone armv7
[11040](https://github.com/flutter/engine/pull/11040) Hide verbose dart snapshot during run_test.py
[11041](https://github.com/flutter/engine/pull/11041) Add a BroadcastStream to FrameTiming
[11046](https://github.com/flutter/engine/pull/11046) Add ccls config files to .gitignore
[11052](https://github.com/flutter/engine/pull/11052) Remove unused dstColorSpace argument to MakeCrossContextFromPixmap
[11056](https://github.com/flutter/engine/pull/11056) Sort the Skia typefaces in a font style set into a consistent order
[11062](https://github.com/flutter/engine/pull/11062) Provide a placeholder queue ID for the custom embedder task runner.
[11067](https://github.com/flutter/engine/pull/11067) Minor update to the Robolectric test harness
[11068](https://github.com/flutter/engine/pull/11068) More updates to the Robolectric test harness
[11075](https://github.com/flutter/engine/pull/11075) [dynamic_thread_merging] Resubmit only on the frame where the merge
## Tools
As always, the end-to-end experience for Flutter relies heavily on its tools. With that in mind, in addition to the PRs listed below, which focus on the flutter CLI tool, you should also check out the following releases for the IntelliJ/Android Studio Flutter plugin, the VSCode Flutter plugin and Dart DevTools:
* [DevTools 0.1.6 Release Notes](https://groups.google.com/forum/#!topic/flutter-announce/x9eiBq-OZUk) - Sept 5, 2019
* [IntelliJ Plugin M39 Release Notes](https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/flutter-announce/HH2-z-wYMH4/Yb1mzIPWBgAJ) - Sept 3, 2019
* [VSCode Plugin v3.4](https://dartcode.org/releases/v3-4/) - Sept 3, 2019
* [DevTools 0.1.5 Release Notes](https://groups.google.com/forum/#!searchin/flutter-announce/release$20notes|sort:date/flutter-announce/_tBeov94GEk/8IMoZnV0DQAJ) - Aug 5, 2019
* [VSCode Plugin v3.3](https://dartcode.org/releases/v3-3/) - Aug 2, 2019
* [IntelliJ Plugin M38 Release Notes](https://groups.google.com/forum/#!searchin/flutter-announce/intellij|sort:date/flutter-announce/-LQPz3C3JAM/ZR2WnOklEQAJ) - Aug 2, 2019
* [DevTools 0.1.4 Release Notes](https://groups.google.com/forum/#!searchin/flutter-announce/release$20notes|sort:date/flutter-announce/ZUcqjzEDTKc/ABZtXXOpCgAJ) - Jul 19, 2019
* [VSCode Plugin v3.2](https://dartcode.org/releases/v3-2/) - Jun 28, 2019
In addition, this release also has a lot going on under the hood to provide you with better, more actionable error messages. You can read about those details in [this blog post](https://medium.com/@taodong/e098513cecf9) from the Flutter User Experience team.
[32511](https://github.com/flutter/flutter/pull/32511) Rendering errors with root causes in the widget layer should have a reference to the widget
[28090](https://github.com/flutter/flutter/pull/28090) Ensure that cache dirs and files have appropriate permissions
[32816](https://github.com/flutter/flutter/pull/32816) Add initial implementation of flutter assemble
[34624](https://github.com/flutter/flutter/pull/34624) Break down flutter doctor validations and results
[34785](https://github.com/flutter/flutter/pull/34785) Tweak the display name of emulators
[34794](https://github.com/flutter/flutter/pull/34794) Add emulatorID field to devices in daemon
[35084](https://github.com/flutter/flutter/pull/35084) Move findTargetDevices to DeviceManager
[35092](https://github.com/flutter/flutter/pull/35092) Add FlutterProjectFactory so that it can be overridden internally.
[35186](https://github.com/flutter/flutter/pull/35186) Make tool coverage collection resilient to sentinel coverage data
[35188](https://github.com/flutter/flutter/pull/35188) ensure test isolate is paused before collecting coverage
[35192](https://github.com/flutter/flutter/pull/35192) don't block any presubmit on coverage
[35231](https://github.com/flutter/flutter/pull/35231) Fix coverage collection
[35367](https://github.com/flutter/flutter/pull/35367) Add type to StreamChannel in generated test code.
[35392](https://github.com/flutter/flutter/pull/35392) Add timer checking and Fake http client to testbed
[35406](https://github.com/flutter/flutter/pull/35406) Refactor signal and command line handler from resident runner
[35465](https://github.com/flutter/flutter/pull/35465) Mark update-packages as non-experimental
[35467](https://github.com/flutter/flutter/pull/35467) Mark update-packages as non-experimental
[35480](https://github.com/flutter/flutter/pull/35480) Update the help message on precache command for less confusion
[35681](https://github.com/flutter/flutter/pull/35681) Disable incremental compiler in dartdevc
[35765](https://github.com/flutter/flutter/pull/35765) Use public _registerService RPC in flutter_tools
[35767](https://github.com/flutter/flutter/pull/35767) set targets of zero percent for tools codecoverage
[35839](https://github.com/flutter/flutter/pull/35839) use pub run for create test and remove [INFO] logs
[35846](https://github.com/flutter/flutter/pull/35846) move reload and restart handling into terminal
[36017](https://github.com/flutter/flutter/pull/36017) Move reporting files to reporting/
[36082](https://github.com/flutter/flutter/pull/36082) Add better handling of JSON-RPC exception
[36084](https://github.com/flutter/flutter/pull/36084) handle google3 version of pb
[36105](https://github.com/flutter/flutter/pull/36105) [flutter_tool] Catch a yaml parse failure during project creation
[36109](https://github.com/flutter/flutter/pull/36109) Catch exceptions thrown by runChecked* when possible
[36122](https://github.com/flutter/flutter/pull/36122) Make sure add-to-app build bundle from outer xcodebuild/gradlew sends analytics
[36138](https://github.com/flutter/flutter/pull/36138) Implement feature flag system for flutter tools
[36199](https://github.com/flutter/flutter/pull/36199) Don't try to flutterExit if isolate is still paused
[36208](https://github.com/flutter/flutter/pull/36208) [flutter_tool] Allow analytics without a terminal attached
[36213](https://github.com/flutter/flutter/pull/36213) Use DeviceManager instead of device to determine if device supports project.
[36218](https://github.com/flutter/flutter/pull/36218) release lock in flutter pub context
[36237](https://github.com/flutter/flutter/pull/36237) Recommend to use the final version of CDN support for the trunk specs repo.
[36240](https://github.com/flutter/flutter/pull/36240) Rearrange flutter assemble implementation
[36288](https://github.com/flutter/flutter/pull/36288) Throw exception if instantiating IOSDevice on non-mac os platform
[36289](https://github.com/flutter/flutter/pull/36289) FakeHttpClientResponse improvements
[36318](https://github.com/flutter/flutter/pull/36318) Include flutter_runner in precache artifacts.
[36327](https://github.com/flutter/flutter/pull/36327) Fix invocations of ideviceinstaller not passing DYLD_LIBRARY_PATH
[36331](https://github.com/flutter/flutter/pull/36331) Minor fixes to precache help text (attempt #2)
[36434](https://github.com/flutter/flutter/pull/36434) Clean up flutter driver device detection.
[36481](https://github.com/flutter/flutter/pull/36481) Remove untested code
[36490](https://github.com/flutter/flutter/pull/36490) [flutter_tool] Send analytics command before the command runs
[36507](https://github.com/flutter/flutter/pull/36507) Bump engine version
[36513](https://github.com/flutter/flutter/pull/36513) Fix flutter pub -v
[36556](https://github.com/flutter/flutter/pull/36556) Fix usage test to use local usage
[36560](https://github.com/flutter/flutter/pull/36560) [flutter_tools] Add some useful commands to the [README.md](http://readme.md/)
[36564](https://github.com/flutter/flutter/pull/36564) Make sure fx flutter attach can find devices
[36569](https://github.com/flutter/flutter/pull/36569) Some minor cleanup for flutter_tools
[36570](https://github.com/flutter/flutter/pull/36570) Some minor fixes to the tool_coverage tool
[36585](https://github.com/flutter/flutter/pull/36585) Place build outputs under dart tool
[36598](https://github.com/flutter/flutter/pull/36598) Expose functionality to compile dart to kernel for the VM
[36679](https://github.com/flutter/flutter/pull/36679) add line-length to flutter format command line
[36727](https://github.com/flutter/flutter/pull/36727) Add missing config to create
[36773](https://github.com/flutter/flutter/pull/36773) Expose build-dir config option
[36774](https://github.com/flutter/flutter/pull/36774) Parameterize CoverageCollector with a library name predicate
[36785](https://github.com/flutter/flutter/pull/36785) [flutter_tool] Clean up usage events and custom dimensions
[36787](https://github.com/flutter/flutter/pull/36787) Check for directory instead of path separator
[36832](https://github.com/flutter/flutter/pull/36832) Remove flaky check for analyzer message.
[37036](https://github.com/flutter/flutter/pull/37036) Build number (part after +) is documented as optional, use entire app version if not present
[37044](https://github.com/flutter/flutter/pull/37044) [flutter_tool] Make a couple file operations synchronous
[37186](https://github.com/flutter/flutter/pull/37186) [flutter_tool] Usage refactor cleanup
[37196](https://github.com/flutter/flutter/pull/37196) [flutter_tool] Catch ProcessException from 'adb devices'
[37198](https://github.com/flutter/flutter/pull/37198) [flutter_tool] Re-try sending the first crash report
[37210](https://github.com/flutter/flutter/pull/37210) do not strip symbols when building profile
[37217](https://github.com/flutter/flutter/pull/37217) hide symbols from spotlight for App.framework
[37331](https://github.com/flutter/flutter/pull/37331) [flutter_tool] Add missing toString()
[37345](https://github.com/flutter/flutter/pull/37345) [flutter_tool] Include the local timezone in analytics timestamp
[37378](https://github.com/flutter/flutter/pull/37378) Disable xcode indexing in CI via COMPILER_INDEX_STORE_ENABLE=NO argument
[37422](https://github.com/flutter/flutter/pull/37422) [flutter_tool] Additional flutter manifest yaml validation
[37440](https://github.com/flutter/flutter/pull/37440) Print message when HttpException is thrown after running flutter run
[37457](https://github.com/flutter/flutter/pull/37457) Find the app bundle when the flavor contains underscores
[37500](https://github.com/flutter/flutter/pull/37500) Avoid killing Flutter tool process (#37471)
[37512](https://github.com/flutter/flutter/pull/37512) Enable track widget creation on debug builds
[37514](https://github.com/flutter/flutter/pull/37514) [flutter_tool] Remove unintended analytics screen send
[37521](https://github.com/flutter/flutter/pull/37521) have xcodeSelectPath also catch ArgumentError
[37595](https://github.com/flutter/flutter/pull/37595) Closes #37593 Add flutter_export_environment.sh to gitignore
[37654](https://github.com/flutter/flutter/pull/37654) Add missing library to flutter tools [BUILD.gn](http://build.gn/)
[37731](https://github.com/flutter/flutter/pull/37731) Add metadata to indicate if the host app contains a Flutter module
[37735](https://github.com/flutter/flutter/pull/37735) Remove unused no-build flag from the flutter run command
[37743](https://github.com/flutter/flutter/pull/37743) Handle thrown maps and rejects from fe server
[37792](https://github.com/flutter/flutter/pull/37792) Disable the progress bar when downloading the Dart SDK via Invoke-WebRequest
[37863](https://github.com/flutter/flutter/pull/37863) Expose the timeline event names so they can be used in other systems that do tracing
[37871](https://github.com/flutter/flutter/pull/37871) Catch failure to create directory in cache
[37900](https://github.com/flutter/flutter/pull/37900) Listen to ExtensionEvent instead of TimelineEvent
[37958](https://github.com/flutter/flutter/pull/37958) Catch FormatException caused by bad simctl output
[37966](https://github.com/flutter/flutter/pull/37966) Remove ephemeral directories during flutter clean
[37994](https://github.com/flutter/flutter/pull/37994) Remove no-constant-update-2018, the underlying issue has been resolved.
[38101](https://github.com/flutter/flutter/pull/38101) Catch filesystem exception from flutter create
[38102](https://github.com/flutter/flutter/pull/38102) Fix type error hidden by implicit downcasts
[38296](https://github.com/flutter/flutter/pull/38296) use common emulator/device list
[38339](https://github.com/flutter/flutter/pull/38339) [flutter_tool] Flip create language defaults to swift and kotlin
[38342](https://github.com/flutter/flutter/pull/38342) remove bsdiff from [BUILD.gn](http://build.gn/)
[38353](https://github.com/flutter/flutter/pull/38353) [flutter_tool] Observatory connection error handling cleanup
[38472](https://github.com/flutter/flutter/pull/38472) [flutter_tool] Fix bug in manifest yaml validation
[38486](https://github.com/flutter/flutter/pull/38486) Catch errors thrown into the Zone by json_rpc
[38490](https://github.com/flutter/flutter/pull/38490) Fix publish cmd
[38497](https://github.com/flutter/flutter/pull/38497) handle unexpected exit from frontend server
[38575](https://github.com/flutter/flutter/pull/38575) fix rpc exception for real
[38586](https://github.com/flutter/flutter/pull/38586) Don't reload if compilation has errors
[38637](https://github.com/flutter/flutter/pull/38637) [flutter_tool] Throw tool exit on malformed storage url override
[38652](https://github.com/flutter/flutter/pull/38652) Kill dead code
[36860](https://github.com/flutter/flutter/pull/36860) Remove Chain terse parsing
[36874](https://github.com/flutter/flutter/pull/36874) Adjust phrasing of features
[36884](https://github.com/flutter/flutter/pull/36884) Unbreak build_runner
## Full PR List
You can see the full list of merged PRs in this release [here](/release/release-notes/changelogs/changelog-1.9.1).
| website/src/release/release-notes/release-notes-1.9.1.md/0 | {
"file_path": "website/src/release/release-notes/release-notes-1.9.1.md",
"repo_id": "website",
"token_count": 22069
} | 1,298 |
---
layout: null
sitemap: false
---
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
{% assign collections = site.collections | map: 'label' | join: ',' | prepend: 'pages,' | split: ',' | sort -%}
{%- for colName in collections -%}
{% assign pages = site[colName] | sort: 'url' -%}
{%- for page in pages -%}
{%- unless page.sitemap == false -%}
<url>
<loc>{{ site.url | append: page.url | regex_replace: '/index(\.html)?$|\.html$|/$' }}</loc>
<lastmod>
{%- if page.sitemap.lastmod -%}
{{ page.sitemap.lastmod | date: "%Y-%m-%d" }}
{%- else -%}
{{ site.now | default: page.date | default: site.time | date_to_xmlschema }}
{%- endif -%}
</lastmod>
<changefreq>{{ page.sitemap.changefreq | default: 'monthly' }}</changefreq>
{% if page.sitemap.priority -%}
<priority>{{ page.sitemap.priority }}</priority>
{%- endif -%}
</url>
{% endunless -%}
{%- endfor -%}
{%- endfor -%}
</urlset>
| website/src/sitemap.xml/0 | {
"file_path": "website/src/sitemap.xml",
"repo_id": "website",
"token_count": 492
} | 1,299 |
---
title: Using the CPU profiler view
description: Learn how to use the DevTools CPU profiler view.
---
{{site.alert.note}}
The CPU profiler view works with Dart CLI and mobile apps only.
Use Chrome DevTools to [analyze performance][]
of a web app.
{{site.alert.end}}
The CPU profiler view allows you to record and profile a
session from your Dart or Flutter application.
The profiler can help you solve performance problems
or generally understand your app's CPU activity.
The Dart VM collects CPU samples
(a snapshot of the CPU call stack at a single point in time)
and sends the data to DevTools for visualization.
By aggregating many CPU samples together,
the profiler can help you understand where the CPU
spends most of its time.
{{site.alert.note}}
**If you are running a Flutter application,
use a profile build to analyze performance.**
CPU profiles are not indicative of release performance
unless your Flutter application is run in profile mode.
{{site.alert.end}}
{% include_relative _profiler.md %}
[analyze performance]: {{site.developers}}/web/tools/chrome-devtools/evaluate-performance/
## Other resources
To learn how to use DevTools to analyze
the CPU usage of a compute-intensive Mandelbrot app,
check out a guided [CPU Profiler View tutorial][profiler-tutorial].
Also, learn how to analyze CPU usage when the app
uses isolates for parallel computing.
[profiler-tutorial]: {{site.medium}}/@fluttergems/mastering-dart-flutter-devtools-cpu-profiler-view-part-6-of-8-31e24eae6bf8
| website/src/tools/devtools/cpu-profiler.md/0 | {
"file_path": "website/src/tools/devtools/cpu-profiler.md",
"repo_id": "website",
"token_count": 422
} | 1,300 |
# DevTools 2.14.0 release notes
The 2.14.0 release of the Dart and Flutter DevTools
includes the following changes among other general improvements.
To learn more about DevTools, check out the
[DevTools overview](https://docs.flutter.dev/tools/devtools/overview).
## General updates
* Added a link to the new DevTools
[Discord channel](https://discord.com/channels/608014603317936148/958862085297672282)
in the About DevTools dialog -
[#4102](https://github.com/flutter/devtools/pull/4102)
## Network updates
* Added "Copy as URL" and "Copy as cURL" actions for
selected requests in the network profiler
(special thanks to [@jankuss](https://github.com/jankuss)!) -
[#4113](https://github.com/flutter/devtools/pull/4113)
## Flutter inspector updates
* Added a setting to control whether hovering over a widget
in the inspector displays its properties and values in a hover card -
[#4090](https://github.com/flutter/devtools/pull/4090)
## Debugger updates
* Added auto complete suggestions in the console
(special thanks to [@jankuss](https://github.com/jankuss)!) -
[#4062](https://github.com/flutter/devtools/pull/4062)
* Added the option to copy the full file path for a selected library -
[#4147](https://github.com/flutter/devtools/pull/4147)
* Fixed formatting in the debugger exception menu -
[#4066](https://github.com/flutter/devtools/pull/4066)
## Memory updates
* Fixed formatting for memory values in the heap tree view -
[#4153](https://github.com/flutter/devtools/pull/4153)
* Fixed a bug that was preventing GC events from
showing up in the memory chart -
[#4131](https://github.com/flutter/devtools/pull/4131)
## Performance updates
* Warn users that the rendering layer toggles in the
"More Debugging Options" menu are not available for profile mode apps -
[#4075](https://github.com/flutter/devtools/pull/4075)
## Full commit history
To find a complete list of changes since the previous release,
check out
[the diff on GitHub](https://github.com/flutter/devtools/compare/v2.13.1...v2.14.0).
| website/src/tools/devtools/release-notes/release-notes-2.14.0-src.md/0 | {
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# DevTools 2.22.2 release notes
The 2.22.2 release of the Dart and Flutter DevTools
includes the following changes among other general improvements.
To learn more about DevTools, check out the
[DevTools overview](https://docs.flutter.dev/tools/devtools/overview).
## General updates
- Prevent crashes if there is no main isolate -
[#5232](https://github.com/flutter/devtools/pull/5232)
## CPU profiler updates
- Display stack frame URI inline with method name to
ensure the URI is always visible in deeply nested trees -
[#5181](https://github.com/flutter/devtools/pull/5181)
- Add the ability to filter by method name or source URI -
[#5204](https://github.com/flutter/devtools/pull/5204)
## Memory updates
- Change filter default to show only project and 3rd party dependencies -
[#5201](https://github.com/flutter/devtools/pull/5201).
- Support expression evaluation in console for running application -
[#5248](https://github.com/flutter/devtools/pull/5248).
- Add column `Persisted` for memory diffing -
[#5290](https://github.com/flutter/devtools/pull/5290)
## Debugger updates
- Add support for browser navigation history when
navigating using the File Explorer -
[#4906](https://github.com/flutter/devtools/pull/4906)
- Designate positional fields for `Record` types
with the getter syntax beginning at `$1` -
[#5272](https://github.com/flutter/devtools/pull/5272)
- Fix variable inspection for `Map` and `List` instances -
[#5320](https://github.com/flutter/devtools/pull/5320)
- Fix variable inspection for `Set` instances -
[#5323](https://github.com/flutter/devtools/pull/5323)
## Network profiler updates
- Improve reliability and performance of the Network tab -
[#5056](https://github.com/flutter/devtools/pull/5056)
## Full commit history
To find a complete list of changes since the previous release,
check out
[the diff on GitHub](https://github.com/flutter/devtools/compare/v2.21.1...v2.22.2).
| website/src/tools/devtools/release-notes/release-notes-2.22.2-src.md/0 | {
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"repo_id": "website",
"token_count": 801
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# DevTools 2.28.3 release notes
The 2.28.3 release of the Dart and Flutter DevTools
includes the following changes among other general improvements.
To learn more about DevTools, check out the
[DevTools overview](https://docs.flutter.dev/tools/devtools/overview).
This was a cherry-pick release on top of DevTools 2.28.2.
To learn about the improvements included in DevTools 2.28.2, please read the
[release notes](/tools/devtools/release-notes/release-notes-2.28.2).
## General updates
* Added a link to the new "Dive in to DevTools" YouTube
[video](https://www.youtube.com/watch?v=_EYk-E29edo) in the bottom status bar.
This video provides a brief tutorial for each DevTools screen.
[#6554](https://github.com/flutter/devtools/pull/6554)
* Added a workaround to fix copy button functionality in VSCode. - [#6598](https://github.com/flutter/devtools/pull/6598)
## Performance updates
* Disable the Raster Stats tool for the Impeller backend
since it is not supported. - [#6616](https://github.com/flutter/devtools/pull/6616)
## VS Code Sidebar updates
* When using VS Code with a light theme, the embedded sidebar provided by
DevTools will now also show in the light theme. - [#6581](https://github.com/flutter/devtools/pull/6581)
## Full commit history
To find a complete list of changes in this release, check out the
[DevTools git log](https://github.com/flutter/devtools/tree/v2.28.3).
| website/src/tools/devtools/release-notes/release-notes-2.28.3-src.md/0 | {
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# DevTools 2.7.0 release notes
The 2.7.0 release of the Dart and Flutter DevTools
includes the following changes among other general improvements.
To learn more about DevTools, check out the
[DevTools overview](https://docs.flutter.dev/tools/devtools/overview).
## General updates
* Improvements for initial page load time -
[#3309](https://github.com/flutter/devtools/pull/3309)
* Fix a couple scrollbar-related issues -
[#3393](https://github.com/flutter/devtools/pull/3393),
[#3401](https://github.com/flutter/devtools/pull/3401)
## Debugger updates
* Add an open file dialog (ctrl / cmd + p) -
[#3342](https://github.com/flutter/devtools/pull/3342),
[#3354](https://github.com/flutter/devtools/pull/3354),
[#3371](https://github.com/flutter/devtools/pull/3371),
[#3384](https://github.com/flutter/devtools/pull/3384)
* Add a copy button to the call stack view -
[#3334](https://github.com/flutter/devtools/pull/3334)
## CPU profiler updates
* Added functionality to load an app startup profile for Flutter apps.
This profile will contain CPU samples from the initialization
of the Dart VM up until the first Flutter frame has been rendered -
[#3357](https://github.com/flutter/devtools/pull/3357)
When the app startup profile has been loaded,
you will see that the "AppStartUp" user tag is selected for the profile.
You can also load the app startup profile
by selecting this user tag filter, when present,
in the list of available user tags.
* Added multi-isolate support.
Select which isolate you want to profile
from the isolate selector at the bottom of the page -
[#3362](https://github.com/flutter/devtools/pull/3362)
* Add class names to CPU stack frames in the profiler -
[#3385](https://github.com/flutter/devtools/pull/3385)
## Full commit history
To find a complete list of changes since the previous release,
check out
[the diff on GitHub](https://github.com/flutter/devtools/compare/v2.6.0...v2.7.0).
| website/src/tools/devtools/release-notes/release-notes-2.7.0-src.md/0 | {
"file_path": "website/src/tools/devtools/release-notes/release-notes-2.7.0-src.md",
"repo_id": "website",
"token_count": 827
} | 1,304 |
---
title: Visual Studio Code
short-title: VS Code
description: How to develop Flutter apps in Visual Studio Code.
---
<ul class="nav nav-tabs" id="ide" role="tablist">
<li class="nav-item">
<a class="nav-link" href="/tools/android-studio" role="tab" aria-selected="false">Android Studio and IntelliJ</a>
</li>
<li class="nav-item">
<a class="nav-link active" role="tab" aria-selected="true">Visual Studio Code</a>
</li>
</ul>
## Installation and setup
Follow the [Set up an editor][] instructions to
install the Dart and Flutter extensions
(also called plugins).
### Updating the extension {#updating}
Updates to the extensions are shipped on a regular basis.
By default, VS Code automatically updates extensions when
updates are available.
To install updates yourself:
1. Click **Extensions** in the Side Bar.
1. If the Flutter extension has an available update,
click **Update** and then **Reload**.
1. Restart VS Code.
## Creating projects
There are a couple ways to create a new project.
### Creating a new project
To create a new Flutter project from the Flutter
starter app template:
1. Go to **View** <span aria-label="and then">></span>
**Command Palette...**.
You can also press <kbd>Ctrl</kbd> / <kbd>Cmd</kbd> +
<kbd>Shift</kbd> + <kbd>P</kbd>.
1. Type `flutter`.
1. Select the **Flutter: New Project**.
1. Press <kbd>Enter</kbd>.
1. Select **Application**.
1. Press <kbd>Enter</kbd>.
1. Select a **Project location**.
1. Enter your desired **Project name**.
### Opening a project from existing source code
To open an existing Flutter project:
1. Go to **File** <span aria-label="and then">></span> **Open**.
You can also press <kbd>Ctrl</kbd> / <kbd>Cmd</kbd> + <kbd>O</kbd>
1. Browse to the directory holding your existing
Flutter source code files.
1. Click **Open**.
## Editing code and viewing issues
The Flutter extension performs code analysis.
The code analysis can:
- Highlight language syntax
- Complete code based on rich type analysis
- Navigate to type declarations
- Go to **Go** <span aria-label="and then">></span> **Go to Definition**.
- You can also press <kbd>F12</kbd>.
- Find type usages.
- Press <kbd>Shift</kbd> + <kbd>F12</kbd>.
- View all current source code problems.
- Go to **View** <span aria-label="and then">></span> **Problems**.
- You can also press <kbd>Ctrl</kbd> / <kbd>Cmd</kbd> +
<kbd>Shift</kbd> + <kbd>M</kbd>.
- The Problems pane displays any analysis issues:<br>
{:.mw-100.pt-1}
## Running and debugging
{{site.alert.note}}
You can debug your app in a couple of ways.
- Using [DevTools][], a suite of debugging and profiling
tools that run in a browser.
- Using VS Code's built-in debugging features,
such as setting breakpoints.
The instructions below describe features available in VS Code.
For information on using launching DevTools, see
[Running DevTools from VS Code][] in the [DevTools][] docs.
{{site.alert.end}}
Start debugging by clicking **Run > Start Debugging**
from the main IDE window, or press <kbd>F5</kbd>.
### Selecting a target device
When a Flutter project is open in VS Code,
you should see a set of Flutter specific entries in the status bar,
including a Flutter SDK version and a
device name (or the message **No Devices**):<br>
![VS Code status bar][]{:.mw-100.pt-1}
{{site.alert.note}}
- If you do not see a Flutter version number or device info,
your project might not have been detected as a Flutter project.
Ensure that the folder that contains your `pubspec.yaml` is
inside a VS Code **Workspace Folder**.
- If the status bar reads **No Devices**, Flutter has not been
able to discover any connected iOS or Android devices or simulators.
You need to connect a device, or start a simulator or emulator,
to proceed.
{{site.alert.end}}
The Flutter extension automatically selects the last device connected.
However, if you have multiple devices/simulators connected, click
**device** in the status bar to see a pick-list
at the top of the screen. Select the device you want to use for
running or debugging.
{{site.alert.secondary}}
**Are you developing for macOS or iOS remotely using
Visual Studio Code Remote?** If so, you might need to manually
unlock the keychain. For more information, see this
[question on StackExchange][].
[question on StackExchange]: https://superuser.com/questions/270095/when-i-ssh-into-os-x-i-dont-have-my-keychain-when-i-use-terminal-i-do/363840#363840
{{site.alert.end}}
### Run app without breakpoints
Go to **Run** > **Start Without Debugging**.
You can also press <kbd>Ctrl</kbd> + <kbd>F5</kbd>.
### Run app with breakpoints
1. If desired, set breakpoints in your source code.
1. Click **Run** <span aria-label="and then">></span> **Start Debugging**.
You can also press <kbd>F5</kbd>.
The status bar turns orange to show you are in a debug session.<br>
{:.mw-100.pt-1}
- The left **Debug Sidebar** shows stack frames and variables.
- The bottom **Debug Console** pane shows detailed logging output.
- Debugging is based on a default launch configuration.
To customize, click the cog at the top of the
**Debug Sidebar** to create a `launch.json` file.
You can then modify the values.
### Run app in debug, profile, or release mode
Flutter offers many different build modes to run your app in.
You can read more about them in [Flutter's build modes][].
1. Open the `launch.json` file in VS Code.
If you don't have a `launch.json` file:
{: type="a"}
1. Go to **View** <span aria-label="and then">></span> **Run**.
You can also press <kbd>Ctrl</kbd> / <kbd>Cmd</kbd> +
<kbd>Shift</kbd> + <kbd>D</kbd>
The **Run and Debug** panel displays.
1. Click **create a launch.json file**.
1. In the `configurations` section,
change the `flutterMode` property to
the build mode you want to target.
For example, if you want to run in debug mode,
your `launch.json` might look like this:
```json
"configurations": [
{
"name": "Flutter",
"request": "launch",
"type": "dart",
"flutterMode": "debug"
}
]
```
1. Run the app through the **Run** panel.
## Fast edit and refresh development cycle
Flutter offers a best-in-class developer cycle enabling you
to see the effect of your changes almost instantly with the
_Stateful Hot Reload_ feature.
To learn more, check out [Hot reload][].
## Advanced debugging
You might find the following advanced debugging tips useful:
### Debugging visual layout issues
During a debug session,
several additional debugging commands are added to the
[Command Palette][] and to the [Flutter inspector][].
When space is limited, the icon is used as the visual
version of the label.
<dl markdown="1">
<dt markdown="1"> **Toggle Baseline Painting** {:width="20px"}</dt>
<dd>Causes each RenderBox to paint a line at each of its baselines.</dd>
<dt markdown="1"> **Toggle Repaint Rainbow** {:width="20px"}</dt>
<dd>Shows rotating colors on layers when repainting.</dd>
<dt markdown="1">**Toggle Slow Animations** {:width="20px"}</dt>
<dd>Slows down animations to enable visual inspection.</dd>
<dt markdown="1">**Toggle Debug Mode Banner** {:width="20px"}</dt>
<dd>Hides the debug mode banner even when running a debug build.</dd>
</dl>
### Debugging external libraries
By default, debugging an external library is disabled
in the Flutter extension. To enable:
1. Select **Settings > Extensions > Dart Configuration**.
2. Check the `Debug External Libraries` option.
## Editing tips for Flutter code
If you have additional tips we should share, [let us know][]!
### Assists & quick fixes
Assists are code changes related to a certain code identifier.
A number of these are available when the cursor is placed on a
Flutter widget identifier, as indicated by the yellow lightbulb icon.
To invoke the assist, click the lightbulb as shown in the following screenshot:
{:width="467px"}
You can also press <kbd>Ctrl</kbd> / <kbd>Cmd</kbd> + <kbd>.</kbd>
Quick fixes are similar,
only they are shown with a piece of code has an error and they
can assist in correcting it.
**Wrap with new widget assist**
: This can be used when you have a widget that you want to wrap
in a surrounding widget, for example if you want to wrap a
widget in a `Row` or `Column`.
**Wrap widget list with new widget assist**
: Similar to the assist above, but for wrapping an existing
list of widgets rather than an individual widget.
**Convert child to children assist**
: Changes a child argument to a children argument,
and wraps the argument value in a list.
**Convert StatelessWidget to StatefulWidget assist**
: Changes the implementation of a `StatelessWidget` to that of
a `StatefulWidget`, by creating the `State` class and moving
the code there.
### Snippets
Snippets can be used to speed up entering typical code structures.
They are invoked by typing their prefix,
and then selecting from the code completion window:
{:width="100%"}
The Flutter extension includes the following snippets:
- Prefix `stless`: Create a new subclass of -StatelessWidget`.
- Prefix `stful`: Create a new subclass of `StatefulWidget`
and its associated State subclass.
- Prefix `stanim`: Create a new subclass of `StatefulWidget`,
and its associated State subclass including a field initialized
with an `AnimationController`.
You can also define custom snippets by executing
**Configure User Snippets** from the [Command Palette][].
### Keyboard shortcuts
**Hot reload**
: To perform a hot reload during a debug session,
click **Hot Reload** on the **Debug Toolbar**.
You can also press <kbd>Ctrl</kbd> + <kbd>F5</kbd>
(<kbd>Cmd</kbd> + <kbd>F5</kbd> on macOS).
Keyboard mappings can be changed by executing the
**Open Keyboard Shortcuts** command from the [Command Palette][].
### Hot reload vs. hot restart
Hot reload works by injecting updated source code files into the
running Dart VM (Virtual Machine). This includes not only
adding new classes, but also adding methods and fields to
existing classes, and changing existing functions.
A few types of code changes cannot be hot reloaded though:
- Global variable initializers
- Static field initializers
- The `main()` method of the app
For these changes, restart your app without
ending your debugging session. To perform a hot restart,
run the **Flutter: Hot Restart** command from the [Command Palette][].
You can also press
<kbd>Ctrl</kbd> + <kbd>Shift</kbd> + <kbd>F5</kbd>
or <kbd>Cmd</kbd> + <kbd>Shift</kbd> + <kbd>F5</kbd> on macOS.
## Troubleshooting
### Known issues and feedback
All known bugs are tracked in the issue tracker:
[Dart and Flutter extensions GitHub issue tracker][issue tracker].
We welcome feedback,
both on bugs/issues and feature requests.
Prior to filing new issues:
- Do a quick search in the issue trackers to see if the
issue is already tracked.
- Make sure you are [up to date](#updating) with the most recent
version of the plugin.
When filing new issues, include [flutter doctor][] output.
[Command Palette]: https://code.visualstudio.com/docs/getstarted/userinterface#_command-palette
[DevTools]: /tools/devtools
[flutter doctor]: /resources/bug-reports/#provide-some-flutter-diagnostics
[Flutter inspector]: /tools/devtools/inspector
[Flutter's build modes]: /testing/build-modes
[Hot reload]: /tools/hot-reload
[let us know]: {{site.repo.this}}/issues/new
[issue tracker]: {{site.github}}/Dart-Code/Dart-Code/issues
[Running DevTools from VS Code]: /tools/devtools/vscode
[Set up an editor]: /get-started/editor?tab=vscode
[VS Code status bar]: /assets/images/docs/tools/vs-code/device_status_bar.png
| website/src/tools/vs-code.md/0 | {
"file_path": "website/src/tools/vs-code.md",
"repo_id": "website",
"token_count": 3804
} | 1,305 |
---
title: Material Design for Flutter
description: Learn about Material Design for Flutter.
---
Material Design is an open-source design system built
and supported by Google designers and developers.
The latest version, Material 3, enables personal,
adaptive, and expressive experiences—from dynamic color
and enhanced accessibility, to foundations for
large screen layouts, and design tokens.
{{site.alert.warning}}
As of the Flutter 3.16 release, **Material 3 is
enabled by default**. For now, you can opt out
of Material 3 by setting the [`useMaterial3`][] property
to `false`. But be aware that the `useMaterial3`
property and support for Material 2
will eventually be deprecated according to
Flutter's [deprecation policy][].
{{site.alert.end}}
For _most_ Flutter widgets, upgrading to Material 3
is seamless. But _some_ widgets couldn't be
updated—entirely new implementations were needed,
such as [`NavigationBar`][].
You must make these changes to your code manually.
Until your app is entirely updated,
the UI might look or act a bit strange.
You can find the entirely new Material components by
visiting the [Affected widgets][] page.
[Affected widgets]: {{site.api}}/flutter/material/ThemeData/useMaterial3.html#affected-widgets
[deprecation policy]: /release/compatibility-policy#deprecation-policy
[demo]: https://flutter.github.io/samples/web/material_3_demo/#/
[`NavigationBar`]: {{site.api}}/flutter/material/NavigationBar-class.html
[`useMaterial3`]: {{site.api}}/flutter/material/ThemeData/useMaterial3.html
Explore the updated components, typography, color system,
and elevation support with the
[interactive Material 3 demo][demo]:
<iframe src="https://flutter.github.io/samples/web/material_3_demo/#/" width="100%" height="600px" title="Material 3 Demo App"></iframe>
## More information
{:.no_toc}
To learn more about Material Design and Flutter,
check out:
* [Material.io developer documentation][]
* [Migrating a Flutter app to Material 3][] blog post by Taha Tesser
* [Umbrella issue on GitHub][]
[Material.io developer documentation]: {{site.material}}/develop/flutter
[Migrating a Flutter app to Material 3]: https://blog.codemagic.io/migrating-a-flutter-app-to-material-3/
[Umbrella issue on GitHub]: {{site.github}}//flutter/flutter/issues/91605
| website/src/ui/design/material/index.md/0 | {
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"repo_id": "website",
"token_count": 658
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---
title: Scrolling
description: Overview of Flutter's scrolling support
---
Flutter has many built-in widgets that automatically
scroll and also offers a variety of widgets
that you can customize to create specific scrolling
behavior.
## Basic scrolling
Many Flutter widgets support scrolling out of the box
and do most of the work for you. For example,
[`SingleChildScrollView`][] automatically scrolls its
child when necessary. Other useful widgets include
[`ListView`][] and [`GridView`][].
You can check out more of these widgets on the
[scrolling page][] of the Widget catalog.
<iframe width="560" height="315" src="{{site.yt.embed}}/DbkIQSvwnZc" title="Learn how to use the Scrollbar Flutter Widget" {{site.yt.set}}></iframe>
<iframe width="560" height="315" src="{{site.yt.embed}}/KJpkjHGiI5A" title="Learn how to use the ListView Flutter Widget" {{site.yt.set}}></iframe>
### Infinite scrolling
When you have a long list of items
in your `ListView` or `GridView` (including an _infinite_ list),
you can build the items on demand
as they scroll into view. This provides a much
more performant scrolling experience.
For more information, check out
[`ListView.builder`][] or [`GridView.builder`][].
[`ListView.builder`]: {{site.api}}/flutter/widgets/ListView/ListView.builder.html
[`GridView.builder`]: {{site.api}}/flutter/widgets/GridView/GridView.builder.html
### Specialized scrollable widgets
The following widgets provide more specific scrolling
behavior.
A video on using [`DraggableScrollableSheet`][]
<iframe width="560" height="315" src="{{site.yt.embed}}/Hgw819mL_78" title="Learn how to use the DraggableScrollableSheet Flutter Widget" {{site.yt.set}}></iframe>
Turn the scrollable area into a wheel! [`ListWheelScrollView`][]
<iframe width="560" height="315" src="{{site.yt.embed}}/dUhmWAz4C7Y" title="Learn how to use the ListWheelScrollView Flutter Widget" {{site.yt.set}}></iframe>
[`DraggableScrollableSheet`]: {{site.api}}/flutter/widgets/DraggableScrollableSheet-class.html
[`GridView`]: {{site.api}}/flutter/widgets/GridView-class.html
[`ListView`]: {{site.api}}/flutter/widgets/ListView-class.html
[`ListWheelScrollView`]: {{site.api}}/flutter/widgets/ListWheelScrollView-class.html
[scrolling page]: /ui/widgets/scrolling
[`SingleChildScrollView`]: {{site.api}}/flutter/widgets/SingleChildScrollView-class.html
{% comment %}
Not yet, but coming. Two dimensional scrolling:
TableView and TreeView.
Video: {{site.yt.watch}}?v=UDZ0LPQq-n8
{% endcomment %}
## Fancy scrolling
Perhaps you want to implement _elastic_ scrolling,
also called _scroll bouncing_. Or maybe you want to
implement other dynamic scrolling effects, like parallax scrolling.
Or perhaps you want a scrolling header with very specific behavior,
such as shrinking or disappearing.
You can achieve all this and more using the
Flutter `Sliver*` classes.
A _sliver_ refers to a piece of the scrollable area.
You can define and insert a sliver into a [`CustomScrollView`][]
to have finer-grained control over that area.
For more information, check out
[Using slivers to achieve fancy scrolling][]
and the [Sliver classes][].
[`CustomScrollView`]: {{site.api}}/flutter/widgets/CustomScrollView-class.html
[Sliver classes]: /ui/widgets/layout#Sliver%20widgets
[Using slivers to achieve fancy scrolling]: /ui/layout/scrolling/slivers
## Nested scrolling widgets
How do you nest a scrolling widget
inside another scrolling widget
without hurting scrolling performance?
Do you set the `ShrinkWrap` property to true,
or do you use a sliver?
Check out the "ShrinkWrap vs Slivers" video:
<iframe width="560" height="315" src="{{site.yt.embed}}/LUqDNnv_dh0" title="Learn how to nest scrolling widgets in Flutter" {{site.yt.set}}></iframe>
| website/src/ui/layout/scrolling/index.md/0 | {
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"repo_id": "website",
"token_count": 1143
} | 1,307 |
---
title: Material Components widgets
short-title: Material
description: >
A catalog of Flutter's widgets implementing Material 3 design guidelines.
---
{% include docs/catalogpage-material.html category="Material components" %}
| website/src/ui/widgets/material.md/0 | {
"file_path": "website/src/ui/widgets/material.md",
"repo_id": "website",
"token_count": 57
} | 1,308 |
// Copyright 2024 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:io';
import 'package:args/command_runner.dart';
import 'package:path/path.dart' as path;
import '../utils.dart';
final class TestDartCommand extends Command<int> {
static const String _verboseFlag = 'verbose';
TestDartCommand() {
argParser.addFlag(
_verboseFlag,
defaultsTo: false,
help: 'Show verbose logging.',
);
}
@override
String get description => 'Run tests on the site infra and examples.';
@override
String get name => 'test-dart';
@override
Future<int> run() async => _testDart(
verboseLogging: argResults.get<bool>(_verboseFlag, false),
);
}
Future<int> _testDart({
bool verboseLogging = false,
}) async {
final directoriesToTest = [
path.join('tool', 'flutter_site'),
...exampleProjectDirectories,
];
print('Testing code...');
final failedTests = <String>[
for (final directory in directoriesToTest)
if (!(await testsPassInDirectory(directory, verboseLogging))) directory
];
if (failedTests.isNotEmpty) {
stderr.writeln('\nError: ${failedTests.length} tests failed!');
return 1;
}
print('All tests passed successfully!');
return 0;
}
Future<bool> testsPassInDirectory(String directory, bool verboseLogging) async {
if (verboseLogging) {
print('Testing code in $directory...');
}
final flutterTestOutput = await Process.run(
'flutter',
[
'test',
'--reporter',
'expanded', // Non-animated expanded output looks better in CI and logs.
],
workingDirectory: directory,
);
if (flutterTestOutput.exitCode != 0) {
final normalOutput = flutterTestOutput.stdout.toString();
final errorOutput = flutterTestOutput.stderr.toString();
// It's ok if the test directory is not found.
if (!errorOutput.contains('No test') &&
!normalOutput.contains('Could not find package `test`') &&
!normalOutput.contains('No tests were') &&
!errorOutput.contains(RegExp(r'Test directory.*not found'))) {
stderr.write(normalOutput);
stderr.writeln('Tests in $directory failed:');
stderr.write(errorOutput);
return false;
}
if (verboseLogging) {
print('No tests found or ran in $directory.');
}
} else {
if (verboseLogging) {
print('All tests passed in $directory.');
}
}
return true;
}
| website/tool/flutter_site/lib/src/commands/test_dart.dart/0 | {
"file_path": "website/tool/flutter_site/lib/src/commands/test_dart.dart",
"repo_id": "website",
"token_count": 904
} | 1,309 |
#include "../../Flutter/Flutter-Debug.xcconfig"
#include "Warnings.xcconfig"
| codelabs/adaptive_app/step_05/macos/Runner/Configs/Debug.xcconfig/0 | {
"file_path": "codelabs/adaptive_app/step_05/macos/Runner/Configs/Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 0 |
include: ../../analysis_options.yaml
| codelabs/animated-responsive-layout/step_03/analysis_options.yaml/0 | {
"file_path": "codelabs/animated-responsive-layout/step_03/analysis_options.yaml",
"repo_id": "codelabs",
"token_count": 12
} | 1 |
#include "ephemeral/Flutter-Generated.xcconfig"
| codelabs/animated-responsive-layout/step_05/macos/Flutter/Flutter-Release.xcconfig/0 | {
"file_path": "codelabs/animated-responsive-layout/step_05/macos/Flutter/Flutter-Release.xcconfig",
"repo_id": "codelabs",
"token_count": 19
} | 2 |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import '../models/data.dart' as data;
import '../models/models.dart';
import 'email_widget.dart';
import 'search_bar.dart' as search_bar;
class EmailListView extends StatelessWidget {
const EmailListView({
super.key,
this.selectedIndex,
this.onSelected,
required this.currentUser,
});
final int? selectedIndex;
final ValueChanged<int>? onSelected;
final User currentUser;
@override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.symmetric(horizontal: 8.0),
child: ListView(
children: [
const SizedBox(height: 8),
search_bar.SearchBar(currentUser: currentUser),
const SizedBox(height: 8),
...List.generate(
data.emails.length,
(index) {
return Padding(
padding: const EdgeInsets.only(bottom: 8.0),
child: EmailWidget(
email: data.emails[index],
onSelected: onSelected != null
? () {
onSelected!(index);
}
: null,
isSelected: selectedIndex == index,
),
);
},
),
],
),
);
}
}
| codelabs/animated-responsive-layout/step_06/lib/widgets/email_list_view.dart/0 | {
"file_path": "codelabs/animated-responsive-layout/step_06/lib/widgets/email_list_view.dart",
"repo_id": "codelabs",
"token_count": 715
} | 3 |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:ui';
import 'package:flutter/material.dart';
import '../animations.dart';
class AnimatedFloatingActionButton extends StatefulWidget {
const AnimatedFloatingActionButton({
super.key,
required this.animation,
this.elevation,
this.onPressed,
this.child,
});
final Animation<double> animation;
final VoidCallback? onPressed;
final Widget? child;
final double? elevation;
@override
State<AnimatedFloatingActionButton> createState() =>
_AnimatedFloatingActionButton();
}
class _AnimatedFloatingActionButton
extends State<AnimatedFloatingActionButton> {
late final ColorScheme _colorScheme = Theme.of(context).colorScheme;
late final Animation<double> _scaleAnimation =
ScaleAnimation(parent: widget.animation);
late final Animation<double> _shapeAnimation =
ShapeAnimation(parent: widget.animation);
@override
Widget build(BuildContext context) {
return ScaleTransition(
scale: _scaleAnimation,
child: FloatingActionButton(
elevation: widget.elevation,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.all(
Radius.circular(lerpDouble(30, 15, _shapeAnimation.value)!),
),
),
backgroundColor: _colorScheme.tertiaryContainer,
foregroundColor: _colorScheme.onTertiaryContainer,
onPressed: widget.onPressed,
child: widget.child,
),
);
}
}
| codelabs/animated-responsive-layout/step_07/lib/widgets/animated_floating_action_button.dart/0 | {
"file_path": "codelabs/animated-responsive-layout/step_07/lib/widgets/animated_floating_action_button.dart",
"repo_id": "codelabs",
"token_count": 563
} | 4 |
include: ../../analysis_options.yaml
| codelabs/boring_to_beautiful/final/analysis_options.yaml/0 | {
"file_path": "codelabs/boring_to_beautiful/final/analysis_options.yaml",
"repo_id": "codelabs",
"token_count": 12
} | 5 |
include: ../../analysis_options.yaml
| codelabs/boring_to_beautiful/step_02/analysis_options.yaml/0 | {
"file_path": "codelabs/boring_to_beautiful/step_02/analysis_options.yaml",
"repo_id": "codelabs",
"token_count": 12
} | 6 |
include: ../../analysis_options.yaml
| codelabs/boring_to_beautiful/step_04/analysis_options.yaml/0 | {
"file_path": "codelabs/boring_to_beautiful/step_04/analysis_options.yaml",
"repo_id": "codelabs",
"token_count": 12
} | 7 |
include: ../../analysis_options.yaml
| codelabs/boring_to_beautiful/step_06/analysis_options.yaml/0 | {
"file_path": "codelabs/boring_to_beautiful/step_06/analysis_options.yaml",
"repo_id": "codelabs",
"token_count": 12
} | 8 |
import 'dart:async';
import 'package:flame/components.dart';
import 'package:flutter/material.dart';
import '../brick_breaker.dart';
class PlayArea extends RectangleComponent with HasGameReference<BrickBreaker> {
PlayArea()
: super(
paint: Paint()..color = const Color(0xfff2e8cf),
);
@override
FutureOr<void> onLoad() async {
super.onLoad();
size = Vector2(game.width, game.height);
}
}
| codelabs/brick_breaker/step_04/lib/src/components/play_area.dart/0 | {
"file_path": "codelabs/brick_breaker/step_04/lib/src/components/play_area.dart",
"repo_id": "codelabs",
"token_count": 168
} | 9 |
#include "../../Flutter/Flutter-Debug.xcconfig"
#include "Warnings.xcconfig"
| codelabs/brick_breaker/step_04/macos/Runner/Configs/Debug.xcconfig/0 | {
"file_path": "codelabs/brick_breaker/step_04/macos/Runner/Configs/Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 10 |
#include "../../Flutter/Flutter-Release.xcconfig"
#include "Warnings.xcconfig"
| codelabs/dart-patterns-and-records/step_04/macos/Runner/Configs/Release.xcconfig/0 | {
"file_path": "codelabs/dart-patterns-and-records/step_04/macos/Runner/Configs/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 11 |
org.gradle.jvmargs=-Xmx4G
android.useAndroidX=true
android.enableJetifier=true
| codelabs/dart-patterns-and-records/step_06_b/android/gradle.properties/0 | {
"file_path": "codelabs/dart-patterns-and-records/step_06_b/android/gradle.properties",
"repo_id": "codelabs",
"token_count": 30
} | 12 |
#include "Generated.xcconfig"
| codelabs/dart-patterns-and-records/step_08/ios/Flutter/Release.xcconfig/0 | {
"file_path": "codelabs/dart-patterns-and-records/step_08/ios/Flutter/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 12
} | 13 |
#include "ephemeral/Flutter-Generated.xcconfig"
| codelabs/dart-patterns-and-records/step_08/macos/Flutter/Flutter-Debug.xcconfig/0 | {
"file_path": "codelabs/dart-patterns-and-records/step_08/macos/Flutter/Flutter-Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 19
} | 14 |
#import "GeneratedPluginRegistrant.h"
| codelabs/dart-patterns-and-records/step_09/ios/Runner/Runner-Bridging-Header.h/0 | {
"file_path": "codelabs/dart-patterns-and-records/step_09/ios/Runner/Runner-Bridging-Header.h",
"repo_id": "codelabs",
"token_count": 13
} | 15 |
#include "../../Flutter/Flutter-Release.xcconfig"
#include "Warnings.xcconfig"
| codelabs/dart-patterns-and-records/step_10/macos/Runner/Configs/Release.xcconfig/0 | {
"file_path": "codelabs/dart-patterns-and-records/step_10/macos/Runner/Configs/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 16 |
org.gradle.jvmargs=-Xmx4G
android.useAndroidX=true
android.enableJetifier=true
| codelabs/dart-patterns-and-records/step_12/android/gradle.properties/0 | {
"file_path": "codelabs/dart-patterns-and-records/step_12/android/gradle.properties",
"repo_id": "codelabs",
"token_count": 30
} | 17 |
import 'package:flutter_test/flutter_test.dart';
void main() {
test('empty test to pass ci', () {});
}
| codelabs/deeplink_cookbook/test/widget_test.dart/0 | {
"file_path": "codelabs/deeplink_cookbook/test/widget_test.dart",
"repo_id": "codelabs",
"token_count": 40
} | 18 |
rootProject.name = 'ffigen_app'
| codelabs/ffigen_codelab/step_03/android/settings.gradle/0 | {
"file_path": "codelabs/ffigen_codelab/step_03/android/settings.gradle",
"repo_id": "codelabs",
"token_count": 12
} | 19 |
import 'package:flutter/material.dart';
import 'dart:async';
import 'package:ffigen_app/ffigen_app.dart' as ffigen_app;
void main() {
runApp(const MyApp());
}
class MyApp extends StatefulWidget {
const MyApp({super.key});
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
late int sumResult;
late Future<int> sumAsyncResult;
@override
void initState() {
super.initState();
sumResult = ffigen_app.sum(1, 2);
sumAsyncResult = ffigen_app.sumAsync(3, 4);
}
@override
Widget build(BuildContext context) {
const textStyle = TextStyle(fontSize: 25);
const spacerSmall = SizedBox(height: 10);
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Native Packages'),
),
body: SingleChildScrollView(
child: Container(
padding: const EdgeInsets.all(10),
child: Column(
children: [
const Text(
'This calls a native function through FFI that is shipped as source in the package. '
'The native code is built as part of the Flutter Runner build.',
style: textStyle,
textAlign: TextAlign.center,
),
spacerSmall,
Text(
'sum(1, 2) = $sumResult',
style: textStyle,
textAlign: TextAlign.center,
),
spacerSmall,
FutureBuilder<int>(
future: sumAsyncResult,
builder: (BuildContext context, AsyncSnapshot<int> value) {
final displayValue =
(value.hasData) ? value.data : 'loading';
return Text(
'await sumAsync(3, 4) = $displayValue',
style: textStyle,
textAlign: TextAlign.center,
);
},
),
],
),
),
),
),
);
}
}
| codelabs/ffigen_codelab/step_03/example/lib/main.dart/0 | {
"file_path": "codelabs/ffigen_codelab/step_03/example/lib/main.dart",
"repo_id": "codelabs",
"token_count": 1097
} | 20 |
#include "../../Flutter/Flutter-Release.xcconfig"
#include "Warnings.xcconfig"
| codelabs/ffigen_codelab/step_03/example/macos/Runner/Configs/Release.xcconfig/0 | {
"file_path": "codelabs/ffigen_codelab/step_03/example/macos/Runner/Configs/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 21 |
import 'package:flutter/material.dart';
import 'home.dart';
class AuthGate extends StatelessWidget {
const AuthGate({super.key});
@override
Widget build(BuildContext context) {
return const HomeScreen();
}
}
| codelabs/firebase-auth-flutterfire-ui/start/lib/auth_gate.dart/0 | {
"file_path": "codelabs/firebase-auth-flutterfire-ui/start/lib/auth_gate.dart",
"repo_id": "codelabs",
"token_count": 72
} | 22 |
#include "../../Flutter/Flutter-Debug.xcconfig"
#include "Warnings.xcconfig"
| codelabs/firebase-emulator-suite/complete/macos/Runner/Configs/Debug.xcconfig/0 | {
"file_path": "codelabs/firebase-emulator-suite/complete/macos/Runner/Configs/Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 23 |
#include "Generated.xcconfig"
| codelabs/firebase-emulator-suite/start/ios/Flutter/Release.xcconfig/0 | {
"file_path": "codelabs/firebase-emulator-suite/start/ios/Flutter/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 12
} | 24 |
#include "../../Flutter/Flutter-Release.xcconfig"
#include "Warnings.xcconfig"
| codelabs/firebase-emulator-suite/start/macos/Runner/Configs/Release.xcconfig/0 | {
"file_path": "codelabs/firebase-emulator-suite/start/macos/Runner/Configs/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 25 |
name: Get to know Firebase with Flutter
steps:
- name: step_02
steps:
- name: Remove generated code
rmdir: step_02
- name: Create project
flutter: create gtk_flutter --platforms=ios,android,web,macos
- name: Strip DEVELOPMENT_TEAM
strip-lines-containing: DEVELOPMENT_TEAM =
path: gtk_flutter/ios/Runner.xcodeproj/project.pbxproj
- name: update dependencies
path: gtk_flutter
flutter: pub upgrade --major-versions
- name: Configure analysis_options.yaml
path: gtk_flutter/analysis_options.yaml
replace-contents: |
include: ../../analysis_options.yaml
- name: Add dependencies
path: gtk_flutter
flutter: pub add google_fonts go_router
- name: Patch pubspec.yaml
path: gtk_flutter/pubspec.yaml
patch-u: |
--- b/firebase-get-to-know-flutter/step_02/pubspec.yaml
+++ a/firebase-get-to-know-flutter/step_02/pubspec.yaml
@@ -1,5 +1,6 @@
name: gtk_flutter
-description: "A new Flutter project."
+description: "Get to know Firebase with Flutter"
+
# The following line prevents the package from being accidentally published to
# pub.dev using `flutter pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
@@ -59,6 +60,8 @@ flutter:
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
+ assets:
+ - assets/codelab.png
# To add assets to your application, add an assets section, like this:
# assets:
- name: Patch android/app/build.gradle
path: gtk_flutter/android/app/build.gradle
patch-u: |
--- b/firebase-get-to-know-flutter/step_02/android/app/build.gradle
+++ a/firebase-get-to-know-flutter/step_02/android/app/build.gradle
@@ -45,7 +45,7 @@ android {
applicationId "com.example.gtk_flutter"
// You can update the following values to match your application needs.
// For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
- minSdkVersion flutter.minSdkVersion
+ minSdkVersion 21
targetSdkVersion flutter.targetSdkVersion
versionCode flutterVersionCode.toInteger()
versionName flutterVersionName
- name: Remove the README.md
rm: gtk_flutter/README.md
- name: VSCode config
path: gtk_flutter
mkdir: .vscode
- name: Add launch.json
path: gtk_flutter/.vscode/launch.json
replace-contents: |
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"name": "gtk_flutter",
"request": "launch",
"type": "dart"
}
]
}
- name: Replace lib/main.dart
path: gtk_flutter/lib/main.dart
replace-contents: |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'package:google_fonts/google_fonts.dart';
import 'home_page.dart';
void main() {
runApp(const App());
}
class App extends StatelessWidget {
const App({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Firebase Meetup',
theme: ThemeData(
buttonTheme: Theme.of(context).buttonTheme.copyWith(
highlightColor: Colors.deepPurple,
),
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
textTheme: GoogleFonts.robotoTextTheme(
Theme.of(context).textTheme,
),
visualDensity: VisualDensity.adaptivePlatformDensity,
useMaterial3: true,
),
home: const HomePage(),
);
}
}
- name: Add lib/home_page.dart
path: gtk_flutter/lib/home_page.dart
replace-contents: |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'src/widgets.dart';
class HomePage extends StatelessWidget {
const HomePage({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Firebase Meetup'),
),
body: ListView(
children: <Widget>[
Image.asset('assets/codelab.png'),
const SizedBox(height: 8),
const IconAndDetail(Icons.calendar_today, 'October 30'),
const IconAndDetail(Icons.location_city, 'San Francisco'),
const Divider(
height: 8,
thickness: 1,
indent: 8,
endIndent: 8,
color: Colors.grey,
),
const Header("What we'll be doing"),
const Paragraph(
'Join us for a day full of Firebase Workshops and Pizza!',
),
],
),
);
}
}
- name: Make lib/src
path: gtk_flutter/lib
mkdir: src
- name: Add lib/src/authentication.dart
path: gtk_flutter/lib/src/authentication.dart
replace-contents: |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';
import 'widgets.dart';
class AuthFunc extends StatelessWidget {
const AuthFunc({
super.key,
required this.loggedIn,
required this.signOut,
});
final bool loggedIn;
final void Function() signOut;
@override
Widget build(BuildContext context) {
return Row(
children: [
Padding(
padding: const EdgeInsets.only(left: 24, bottom: 8),
child: StyledButton(
onPressed: () {
!loggedIn ? context.push('/sign-in') : signOut();
},
child: !loggedIn ? const Text('RSVP') : const Text('Logout')),
),
Visibility(
visible: loggedIn,
child: Padding(
padding: const EdgeInsets.only(left: 24, bottom: 8),
child: StyledButton(
onPressed: () {
context.push('/profile');
},
child: const Text('Profile')),
),
)
],
);
}
}
- name: Add lib/src/widgets.dart
path: gtk_flutter/lib/src/widgets.dart
replace-contents: |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
class Header extends StatelessWidget {
const Header(this.heading, {super.key});
final String heading;
@override
Widget build(BuildContext context) => Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
heading,
style: const TextStyle(fontSize: 24),
),
);
}
class Paragraph extends StatelessWidget {
const Paragraph(this.content, {super.key});
final String content;
@override
Widget build(BuildContext context) => Padding(
padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
child: Text(
content,
style: const TextStyle(fontSize: 18),
),
);
}
class IconAndDetail extends StatelessWidget {
const IconAndDetail(this.icon, this.detail, {super.key});
final IconData icon;
final String detail;
@override
Widget build(BuildContext context) => Padding(
padding: const EdgeInsets.all(8.0),
child: Row(
children: [
Icon(icon),
const SizedBox(width: 8),
Text(
detail,
style: const TextStyle(fontSize: 18),
)
],
),
);
}
class StyledButton extends StatelessWidget {
const StyledButton({required this.child, required this.onPressed, super.key});
final Widget child;
final void Function() onPressed;
@override
Widget build(BuildContext context) => OutlinedButton(
style: OutlinedButton.styleFrom(
side: const BorderSide(color: Colors.deepPurple)),
onPressed: onPressed,
child: child,
);
}
- name: Replace test/widget_test.dart
path: gtk_flutter/test/widget_test.dart
replace-contents: |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter_test/flutter_test.dart';
import 'package:gtk_flutter/main.dart';
void main() {
testWidgets('Basic rendering', (tester) async {
// Build our app and trigger a frame.
await tester.pumpWidget(const App());
// Verify that our counter starts at 0.
expect(find.text('Firebase Meetup'), findsOneWidget);
expect(find.text('January 1st'), findsNothing);
});
}
- name: Make assets directory
path: gtk_flutter
mkdir: assets
- name: Add codelab.png
path: gtk_flutter/assets/codelab.png
base64-contents: |
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- name: Build for iOS
platforms: [ macos ]
path: gtk_flutter
flutter: build ios --debug --simulator
- name: Build for Android
platforms: [ macos ]
path: gtk_flutter
flutter: build apk
- name: Build for macOS
platforms: [ macos ]
path: gtk_flutter
flutter: build macos --debug
- name: Copy step_02
copydir:
from: gtk_flutter
to: step_02
- name: step_04
steps:
- name: Remove generated code
rmdir: step_04
- name: Update iOS podspec
platforms: [ macos ]
path: gtk_flutter/ios
pod: update
- name: Update macOS podspec
platforms: [ macos ]
path: gtk_flutter/macos
pod: update
- name: Add lib/firebase_options.dart
path: gtk_flutter/lib/firebase_options.dart
replace-contents: |
// TODO: Replace with file generated by FlutterFire CLI.
// ignore_for_file: lines_longer_than_80_chars
import 'package:firebase_core/firebase_core.dart' show FirebaseOptions;
import 'package:flutter/foundation.dart'
show defaultTargetPlatform, kIsWeb, TargetPlatform;
/// Default [FirebaseOptions] for use with your Firebase apps.
///
/// Example:
/// ```dart
/// import 'firebase_options.dart';
/// // ...
/// await Firebase.initializeApp(
/// options: DefaultFirebaseOptions.currentPlatform,
/// );
/// ```
class DefaultFirebaseOptions {
static FirebaseOptions get currentPlatform {
if (kIsWeb) {
return web;
}
switch (defaultTargetPlatform) {
case TargetPlatform.android:
return android;
case TargetPlatform.iOS:
return ios;
case TargetPlatform.macOS:
return macos;
default:
throw UnsupportedError(
'DefaultFirebaseOptions are not supported for this platform.');
}
}
static const FirebaseOptions web = FirebaseOptions(
apiKey: '',
appId: '',
messagingSenderId: '',
projectId: '',
);
static const FirebaseOptions android = FirebaseOptions(
apiKey: '',
appId: '',
messagingSenderId: '',
projectId: '',
);
static const FirebaseOptions ios = FirebaseOptions(
apiKey: '',
appId: '',
messagingSenderId: '',
projectId: '',
);
static const FirebaseOptions macos = FirebaseOptions(
apiKey: '',
appId: '',
messagingSenderId: '',
projectId: '',
);
}
- name: Patch macos/Runner/DebugProfile.entitlements
path: gtk_flutter/macos/Runner/DebugProfile.entitlements
patch-u: |
--- b/firebase-get-to-know-flutter/step_04/macos/Runner/DebugProfile.entitlements
+++ a/firebase-get-to-know-flutter/step_04/macos/Runner/DebugProfile.entitlements
@@ -8,5 +8,7 @@
<true/>
<key>com.apple.security.network.server</key>
<true/>
+ <key>com.apple.security.network.client</key>
+ <true/>
</dict>
</plist>
- name: Patch macos/Runner/Release.entitlements
path: gtk_flutter/macos/Runner/Release.entitlements
patch-u: |
diff --git b/firebase-get-to-know-flutter/step_04/macos/Runner/Release.entitlements a/firebase-get-to-know-flutter/step_04/macos/Runner/Release.entitlements
index 852fa1a..ee95ab7 100644
--- b/firebase-get-to-know-flutter/step_04/macos/Runner/Release.entitlements
+++ a/firebase-get-to-know-flutter/step_04/macos/Runner/Release.entitlements
@@ -4,5 +4,7 @@
<dict>
<key>com.apple.security.app-sandbox</key>
<true/>
+ <key>com.apple.security.network.client</key>
+ <true/>
</dict>
</plist>
- name: Add cloud_firestore firebase_auth firebase_core provider firebase_ui_auth
path: gtk_flutter
flutter: pub add cloud_firestore firebase_auth firebase_core provider firebase_ui_auth
- name: Copy step_04
copydir:
from: gtk_flutter
to: step_04
- name: step_05
steps:
- name: Remove generated code
rmdir: step_05
- name: Patch lib/main.dart
path: gtk_flutter/lib/main.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_05/lib/main.dart
+++ a/firebase-get-to-know-flutter/step_05/lib/main.dart
@@ -2,21 +2,105 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
+import 'package:firebase_ui_auth/firebase_ui_auth.dart';
import 'package:flutter/material.dart';
+import 'package:go_router/go_router.dart';
import 'package:google_fonts/google_fonts.dart';
+import 'package:provider/provider.dart';
+import 'app_state.dart';
import 'home_page.dart';
void main() {
- runApp(const App());
+ WidgetsFlutterBinding.ensureInitialized();
+
+ runApp(ChangeNotifierProvider(
+ create: (context) => ApplicationState(),
+ builder: ((context, child) => const App()),
+ ));
}
+final _router = GoRouter(
+ routes: [
+ GoRoute(
+ path: '/',
+ builder: (context, state) => const HomePage(),
+ routes: [
+ GoRoute(
+ path: 'sign-in',
+ builder: (context, state) {
+ return SignInScreen(
+ actions: [
+ ForgotPasswordAction(((context, email) {
+ final uri = Uri(
+ path: '/sign-in/forgot-password',
+ queryParameters: <String, String?>{
+ 'email': email,
+ },
+ );
+ context.push(uri.toString());
+ })),
+ AuthStateChangeAction(((context, state) {
+ final user = switch (state) {
+ SignedIn state => state.user,
+ UserCreated state => state.credential.user,
+ _ => null
+ };
+ if (user == null) {
+ return;
+ }
+ if (state is UserCreated) {
+ user.updateDisplayName(user.email!.split('@')[0]);
+ }
+ if (!user.emailVerified) {
+ user.sendEmailVerification();
+ const snackBar = SnackBar(
+ content: Text(
+ 'Please check your email to verify your email address'));
+ ScaffoldMessenger.of(context).showSnackBar(snackBar);
+ }
+ context.pushReplacement('/');
+ })),
+ ],
+ );
+ },
+ routes: [
+ GoRoute(
+ path: 'forgot-password',
+ builder: (context, state) {
+ final arguments = state.uri.queryParameters;
+ return ForgotPasswordScreen(
+ email: arguments['email'],
+ headerMaxExtent: 200,
+ );
+ },
+ ),
+ ],
+ ),
+ GoRoute(
+ path: 'profile',
+ builder: (context, state) {
+ return ProfileScreen(
+ providers: const [],
+ actions: [
+ SignedOutAction((context) {
+ context.pushReplacement('/');
+ }),
+ ],
+ );
+ },
+ ),
+ ],
+ ),
+ ],
+);
+
class App extends StatelessWidget {
const App({super.key});
@override
Widget build(BuildContext context) {
- return MaterialApp(
+ return MaterialApp.router(
title: 'Firebase Meetup',
theme: ThemeData(
buttonTheme: Theme.of(context).buttonTheme.copyWith(
@@ -29,7 +113,7 @@ class App extends StatelessWidget {
visualDensity: VisualDensity.adaptivePlatformDensity,
useMaterial3: true,
),
- home: const HomePage(),
+ routerConfig: _router,
);
}
}
- name: Patch test/widget_test.dart
path: gtk_flutter/test/widget_test.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_05/test/widget_test.dart
+++ a/firebase-get-to-know-flutter/step_05/test/widget_test.dart
@@ -3,12 +3,19 @@
// found in the LICENSE file.
import 'package:flutter_test/flutter_test.dart';
+import 'package:gtk_flutter/app_state.dart';
import 'package:gtk_flutter/main.dart';
+import 'package:provider/provider.dart';
void main() {
testWidgets('Basic rendering', (tester) async {
// Build our app and trigger a frame.
- await tester.pumpWidget(const App());
+ await tester.pumpWidget(
+ ChangeNotifierProvider(
+ create: (context) => ApplicationState(),
+ builder: (context, _) => const App(),
+ ),
+ );
// Verify that our counter starts at 0.
expect(find.text('Firebase Meetup'), findsOneWidget);
- name: Add lib/app_state.dart
path: gtk_flutter/lib/app_state.dart
replace-contents: |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:firebase_auth/firebase_auth.dart'
hide EmailAuthProvider, PhoneAuthProvider;
import 'package:firebase_core/firebase_core.dart';
import 'package:firebase_ui_auth/firebase_ui_auth.dart';
import 'package:flutter/material.dart';
import 'firebase_options.dart';
class ApplicationState extends ChangeNotifier {
ApplicationState() {
init();
}
bool _loggedIn = false;
bool get loggedIn => _loggedIn;
Future<void> init() async {
await Firebase.initializeApp(
options: DefaultFirebaseOptions.currentPlatform);
FirebaseUIAuth.configureProviders([
EmailAuthProvider(),
]);
FirebaseAuth.instance.userChanges().listen((user) {
if (user != null) {
_loggedIn = true;
} else {
_loggedIn = false;
}
notifyListeners();
});
}
}
- name: Patch lib/home_page.dart
path: gtk_flutter/lib/home_page.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_05/lib/home_page.dart
+++ a/firebase-get-to-know-flutter/step_05/lib/home_page.dart
@@ -2,8 +2,13 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
+import 'package:firebase_auth/firebase_auth.dart'
+ hide EmailAuthProvider, PhoneAuthProvider;
import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'app_state.dart';
+import 'src/authentication.dart';
import 'src/widgets.dart';
class HomePage extends StatelessWidget {
@@ -21,6 +26,13 @@ class HomePage extends StatelessWidget {
const SizedBox(height: 8),
const IconAndDetail(Icons.calendar_today, 'October 30'),
const IconAndDetail(Icons.location_city, 'San Francisco'),
+ Consumer<ApplicationState>(
+ builder: (context, appState, _) => AuthFunc(
+ loggedIn: appState.loggedIn,
+ signOut: () {
+ FirebaseAuth.instance.signOut();
+ }),
+ ),
const Divider(
height: 8,
thickness: 1,
- name: Patch lib/src/authentication.dart
path: gtk_flutter/lib/src/authentication.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_05/lib/src/authentication.dart
+++ a/firebase-get-to-know-flutter/step_05/lib/src/authentication.dart
@@ -30,16 +30,15 @@ class AuthFunc extends StatelessWidget {
child: !loggedIn ? const Text('RSVP') : const Text('Logout')),
),
Visibility(
- visible: loggedIn,
- child: Padding(
- padding: const EdgeInsets.only(left: 24, bottom: 8),
- child: StyledButton(
- onPressed: () {
- context.push('/profile');
- },
- child: const Text('Profile')),
- ),
- )
+ visible: loggedIn,
+ child: Padding(
+ padding: const EdgeInsets.only(left: 24, bottom: 8),
+ child: StyledButton(
+ onPressed: () {
+ context.push('/profile');
+ },
+ child: const Text('Profile')),
+ ))
],
);
}
- name: Copy step_05
copydir:
from: gtk_flutter
to: step_05
- name: step_06
steps:
- name: Remove generated code
rmdir: step_06
- name: Patch lib/app_state.dart
path: gtk_flutter/lib/app_state.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_06/lib/app_state.dart
+++ a/firebase-get-to-know-flutter/step_06/lib/app_state.dart
@@ -2,6 +2,7 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
+import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_auth/firebase_auth.dart'
hide EmailAuthProvider, PhoneAuthProvider;
import 'package:firebase_core/firebase_core.dart';
@@ -16,6 +17,7 @@ class ApplicationState extends ChangeNotifier {
}
bool _loggedIn = false;
+
bool get loggedIn => _loggedIn;
Future<void> init() async {
@@ -35,4 +37,19 @@ class ApplicationState extends ChangeNotifier {
notifyListeners();
});
}
+
+ Future<DocumentReference> addMessageToGuestBook(String message) {
+ if (!_loggedIn) {
+ throw Exception('Must be logged in');
+ }
+
+ return FirebaseFirestore.instance
+ .collection('guestbook')
+ .add(<String, dynamic>{
+ 'text': message,
+ 'timestamp': DateTime.now().millisecondsSinceEpoch,
+ 'name': FirebaseAuth.instance.currentUser!.displayName,
+ 'userId': FirebaseAuth.instance.currentUser!.uid,
+ });
+ }
}
- name: Add lib/guest_book.dart
path: gtk_flutter/lib/guest_book.dart
replace-contents: |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:async';
import 'package:flutter/material.dart';
import 'src/widgets.dart';
class GuestBook extends StatefulWidget {
const GuestBook({required this.addMessage, super.key});
final FutureOr<void> Function(String message) addMessage;
@override
State<GuestBook> createState() => _GuestBookState();
}
class _GuestBookState extends State<GuestBook> {
final _formKey = GlobalKey<FormState>(debugLabel: '_GuestBookState');
final _controller = TextEditingController();
@override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.all(8.0),
child: Form(
key: _formKey,
child: Row(
children: [
Expanded(
child: TextFormField(
controller: _controller,
decoration: const InputDecoration(
hintText: 'Leave a message',
),
validator: (value) {
if (value == null || value.isEmpty) {
return 'Enter your message to continue';
}
return null;
},
),
),
const SizedBox(width: 8),
StyledButton(
onPressed: () async {
if (_formKey.currentState!.validate()) {
await widget.addMessage(_controller.text);
_controller.clear();
}
},
child: const Row(
children: [
Icon(Icons.send),
SizedBox(width: 4),
Text('SEND'),
],
),
),
],
),
),
);
}
}
- name: Patch lib/home_page.dart
path: gtk_flutter/lib/home_page.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_06/lib/home_page.dart
+++ a/firebase-get-to-know-flutter/step_06/lib/home_page.dart
@@ -8,6 +8,7 @@ import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'app_state.dart';
+import 'guest_book.dart';
import 'src/authentication.dart';
import 'src/widgets.dart';
@@ -44,6 +45,20 @@ class HomePage extends StatelessWidget {
const Paragraph(
'Join us for a day full of Firebase Workshops and Pizza!',
),
+ Consumer<ApplicationState>(
+ builder: (context, appState, _) => Column(
+ crossAxisAlignment: CrossAxisAlignment.start,
+ children: [
+ if (appState.loggedIn) ...[
+ const Header('Discussion'),
+ GuestBook(
+ addMessage: (message) =>
+ appState.addMessageToGuestBook(message),
+ ),
+ ],
+ ],
+ ),
+ ),
],
),
);
- name: Copy step_06
copydir:
from: gtk_flutter
to: step_06
- name: step_07
steps:
- name: Remove generated code
rmdir: step_07
- name: Patch lib/app_state.dart
path: gtk_flutter/lib/app_state.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_07/lib/app_state.dart
+++ a/firebase-get-to-know-flutter/step_07/lib/app_state.dart
@@ -2,6 +2,8 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
+import 'dart:async';
+
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_auth/firebase_auth.dart'
hide EmailAuthProvider, PhoneAuthProvider;
@@ -10,6 +12,7 @@ import 'package:firebase_ui_auth/firebase_ui_auth.dart';
import 'package:flutter/material.dart';
import 'firebase_options.dart';
+import 'guest_book_message.dart';
class ApplicationState extends ChangeNotifier {
ApplicationState() {
@@ -17,9 +20,12 @@ class ApplicationState extends ChangeNotifier {
}
bool _loggedIn = false;
-
bool get loggedIn => _loggedIn;
+ StreamSubscription<QuerySnapshot>? _guestBookSubscription;
+ List<GuestBookMessage> _guestBookMessages = [];
+ List<GuestBookMessage> get guestBookMessages => _guestBookMessages;
+
Future<void> init() async {
await Firebase.initializeApp(
options: DefaultFirebaseOptions.currentPlatform);
@@ -31,8 +37,26 @@ class ApplicationState extends ChangeNotifier {
FirebaseAuth.instance.userChanges().listen((user) {
if (user != null) {
_loggedIn = true;
+ _guestBookSubscription = FirebaseFirestore.instance
+ .collection('guestbook')
+ .orderBy('timestamp', descending: true)
+ .snapshots()
+ .listen((snapshot) {
+ _guestBookMessages = [];
+ for (final document in snapshot.docs) {
+ _guestBookMessages.add(
+ GuestBookMessage(
+ name: document.data()['name'] as String,
+ message: document.data()['text'] as String,
+ ),
+ );
+ }
+ notifyListeners();
+ });
} else {
_loggedIn = false;
+ _guestBookMessages = [];
+ _guestBookSubscription?.cancel();
}
notifyListeners();
});
- name: Create lib/guest_book_message.dart
path: gtk_flutter/lib/guest_book_message.dart
replace-contents: |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
class GuestBookMessage {
GuestBookMessage({required this.name, required this.message});
final String name;
final String message;
}
- name: Patch lib/guest_book.dart
path: gtk_flutter/lib/guest_book.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_07/lib/guest_book.dart
+++ a/firebase-get-to-know-flutter/step_07/lib/guest_book.dart
@@ -6,12 +6,18 @@ import 'dart:async';
import 'package:flutter/material.dart';
+import 'guest_book_message.dart';
import 'src/widgets.dart';
class GuestBook extends StatefulWidget {
- const GuestBook({required this.addMessage, super.key});
+ const GuestBook({
+ super.key,
+ required this.addMessage,
+ required this.messages,
+ });
final FutureOr<void> Function(String message) addMessage;
+ final List<GuestBookMessage> messages;
@override
State<GuestBook> createState() => _GuestBookState();
@@ -23,45 +29,54 @@ class _GuestBookState extends State<GuestBook> {
@override
Widget build(BuildContext context) {
- return Padding(
- padding: const EdgeInsets.all(8.0),
- child: Form(
- key: _formKey,
- child: Row(
- children: [
- Expanded(
- child: TextFormField(
- controller: _controller,
- decoration: const InputDecoration(
- hintText: 'Leave a message',
+ return Column(
+ crossAxisAlignment: CrossAxisAlignment.start,
+ children: [
+ Padding(
+ padding: const EdgeInsets.all(8.0),
+ child: Form(
+ key: _formKey,
+ child: Row(
+ children: [
+ Expanded(
+ child: TextFormField(
+ controller: _controller,
+ decoration: const InputDecoration(
+ hintText: 'Leave a message',
+ ),
+ validator: (value) {
+ if (value == null || value.isEmpty) {
+ return 'Enter your message to continue';
+ }
+ return null;
+ },
+ ),
),
- validator: (value) {
- if (value == null || value.isEmpty) {
- return 'Enter your message to continue';
- }
- return null;
- },
- ),
- ),
- const SizedBox(width: 8),
- StyledButton(
- onPressed: () async {
- if (_formKey.currentState!.validate()) {
- await widget.addMessage(_controller.text);
- _controller.clear();
- }
- },
- child: const Row(
- children: [
- Icon(Icons.send),
- SizedBox(width: 4),
- Text('SEND'),
- ],
- ),
+ const SizedBox(width: 8),
+ StyledButton(
+ onPressed: () async {
+ if (_formKey.currentState!.validate()) {
+ await widget.addMessage(_controller.text);
+ _controller.clear();
+ }
+ },
+ child: const Row(
+ children: [
+ Icon(Icons.send),
+ SizedBox(width: 4),
+ Text('SEND'),
+ ],
+ ),
+ ),
+ ],
),
- ],
+ ),
),
- ),
+ const SizedBox(height: 8),
+ for (var message in widget.messages)
+ Paragraph('${message.name}: ${message.message}'),
+ const SizedBox(height: 8),
+ ],
);
}
}
- name: Patch lib/home_page.dart
path: gtk_flutter/lib/home_page.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_07/lib/home_page.dart
+++ a/firebase-get-to-know-flutter/step_07/lib/home_page.dart
@@ -54,6 +54,7 @@ class HomePage extends StatelessWidget {
GuestBook(
addMessage: (message) =>
appState.addMessageToGuestBook(message),
+ messages: appState.guestBookMessages,
),
],
],
- name: Copy step_07
copydir:
from: gtk_flutter
to: step_07
- name: step_09
steps:
- name: Remove generated code
rmdir: step_09
- name: Patch lib/src/authentication.dart
path: gtk_flutter/lib/src/authentication.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_09/lib/src/authentication.dart
+++ a/firebase-get-to-know-flutter/step_09/lib/src/authentication.dart
@@ -12,10 +12,12 @@ class AuthFunc extends StatelessWidget {
super.key,
required this.loggedIn,
required this.signOut,
+ this.enableFreeSwag = false,
});
final bool loggedIn;
final void Function() signOut;
+ final bool enableFreeSwag;
@override
Widget build(BuildContext context) {
@@ -38,7 +40,17 @@ class AuthFunc extends StatelessWidget {
context.push('/profile');
},
child: const Text('Profile')),
- ))
+ )),
+ Visibility(
+ visible: enableFreeSwag,
+ child: Padding(
+ padding: const EdgeInsets.only(left: 24, bottom: 8),
+ child: StyledButton(
+ onPressed: () {
+ throw Exception('free swag unimplemented');
+ },
+ child: const Text('Free swag!')),
+ )),
],
);
}
- name: Patch lib/app_state.dart
path: gtk_flutter/lib/app_state.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_09/lib/app_state.dart
+++ a/firebase-get-to-know-flutter/step_09/lib/app_state.dart
@@ -14,18 +14,69 @@ import 'package:flutter/material.dart';
import 'firebase_options.dart';
import 'guest_book_message.dart';
+enum Attending { yes, no, unknown }
+
class ApplicationState extends ChangeNotifier {
ApplicationState() {
init();
}
bool _loggedIn = false;
+
bool get loggedIn => _loggedIn;
+ bool _emailVerified = false;
+
+ bool get emailVerified => _emailVerified;
+
StreamSubscription<QuerySnapshot>? _guestBookSubscription;
List<GuestBookMessage> _guestBookMessages = [];
+
List<GuestBookMessage> get guestBookMessages => _guestBookMessages;
+ int _attendees = 0;
+
+ int get attendees => _attendees;
+
+ static Map<String, dynamic> defaultValues = <String, dynamic>{
+ 'event_date': 'October 18, 2022',
+ 'enable_free_swag': false,
+ 'call_to_action': 'Join us for a day full of Firebase Workshops and Pizza!',
+ };
+
+ // ignoring lints on these fields since we are modifying them in a different
+ // part of the codelab
+ // ignore: prefer_final_fields
+ bool _enableFreeSwag = defaultValues['enable_free_swag'] as bool;
+
+ bool get enableFreeSwag => _enableFreeSwag;
+
+ // ignore: prefer_final_fields
+ String _eventDate = defaultValues['event_date'] as String;
+
+ String get eventDate => _eventDate;
+
+ // ignore: prefer_final_fields
+ String _callToAction = defaultValues['call_to_action'] as String;
+
+ String get callToAction => _callToAction;
+
+ Attending _attending = Attending.unknown;
+ StreamSubscription<DocumentSnapshot>? _attendingSubscription;
+
+ Attending get attending => _attending;
+
+ set attending(Attending attending) {
+ final userDoc = FirebaseFirestore.instance
+ .collection('attendees')
+ .doc(FirebaseAuth.instance.currentUser!.uid);
+ if (attending == Attending.yes) {
+ userDoc.set(<String, dynamic>{'attending': true});
+ } else {
+ userDoc.set(<String, dynamic>{'attending': false});
+ }
+ }
+
Future<void> init() async {
await Firebase.initializeApp(
options: DefaultFirebaseOptions.currentPlatform);
@@ -34,9 +85,19 @@ class ApplicationState extends ChangeNotifier {
EmailAuthProvider(),
]);
+ FirebaseFirestore.instance
+ .collection('attendees')
+ .where('attending', isEqualTo: true)
+ .snapshots()
+ .listen((snapshot) {
+ _attendees = snapshot.docs.length;
+ notifyListeners();
+ });
+
FirebaseAuth.instance.userChanges().listen((user) {
if (user != null) {
_loggedIn = true;
+ _emailVerified = user.emailVerified;
_guestBookSubscription = FirebaseFirestore.instance
.collection('guestbook')
.orderBy('timestamp', descending: true)
@@ -53,15 +114,43 @@ class ApplicationState extends ChangeNotifier {
}
notifyListeners();
});
+ _attendingSubscription = FirebaseFirestore.instance
+ .collection('attendees')
+ .doc(user.uid)
+ .snapshots()
+ .listen((snapshot) {
+ if (snapshot.data() != null) {
+ if (snapshot.data()!['attending'] as bool) {
+ _attending = Attending.yes;
+ } else {
+ _attending = Attending.no;
+ }
+ } else {
+ _attending = Attending.unknown;
+ }
+ notifyListeners();
+ });
} else {
_loggedIn = false;
+ _emailVerified = false;
_guestBookMessages = [];
_guestBookSubscription?.cancel();
+ _attendingSubscription?.cancel();
}
notifyListeners();
});
}
+ Future<void> refreshLoggedInUser() async {
+ final currentUser = FirebaseAuth.instance.currentUser;
+
+ if (currentUser == null) {
+ return;
+ }
+
+ await currentUser.reload();
+ }
+
Future<DocumentReference> addMessageToGuestBook(String message) {
if (!_loggedIn) {
throw Exception('Must be logged in');
- name: Patch lib/home_page.dart
path: gtk_flutter/lib/home_page.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_09/lib/home_page.dart
+++ a/firebase-get-to-know-flutter/step_09/lib/home_page.dart
@@ -11,6 +11,7 @@ import 'app_state.dart';
import 'guest_book.dart';
import 'src/authentication.dart';
import 'src/widgets.dart';
+import 'yes_no_selection.dart';
class HomePage extends StatelessWidget {
const HomePage({super.key});
@@ -25,14 +26,19 @@ class HomePage extends StatelessWidget {
children: <Widget>[
Image.asset('assets/codelab.png'),
const SizedBox(height: 8),
- const IconAndDetail(Icons.calendar_today, 'October 30'),
+ Consumer<ApplicationState>(
+ builder: (context, appState, _) =>
+ IconAndDetail(Icons.calendar_today, appState.eventDate),
+ ),
const IconAndDetail(Icons.location_city, 'San Francisco'),
Consumer<ApplicationState>(
builder: (context, appState, _) => AuthFunc(
- loggedIn: appState.loggedIn,
- signOut: () {
- FirebaseAuth.instance.signOut();
- }),
+ loggedIn: appState.loggedIn,
+ signOut: () {
+ FirebaseAuth.instance.signOut();
+ },
+ enableFreeSwag: appState.enableFreeSwag,
+ ),
),
const Divider(
height: 8,
@@ -42,14 +48,25 @@ class HomePage extends StatelessWidget {
color: Colors.grey,
),
const Header("What we'll be doing"),
- const Paragraph(
- 'Join us for a day full of Firebase Workshops and Pizza!',
+ Consumer<ApplicationState>(
+ builder: (context, appState, _) => Paragraph(
+ appState.callToAction,
+ ),
),
Consumer<ApplicationState>(
builder: (context, appState, _) => Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
+ switch (appState.attendees) {
+ 1 => const Paragraph('1 person going'),
+ >= 2 => Paragraph('${appState.attendees} people going'),
+ _ => const Paragraph('No one going'),
+ },
if (appState.loggedIn) ...[
+ YesNoSelection(
+ state: appState.attending,
+ onSelection: (attending) => appState.attending = attending,
+ ),
const Header('Discussion'),
GuestBook(
addMessage: (message) =>
- name: Patch lib/main.dart
path: gtk_flutter/lib/main.dart
patch-u: |
--- b/firebase-get-to-know-flutter/step_09/lib/main.dart
+++ a/firebase-get-to-know-flutter/step_09/lib/main.dart
@@ -80,13 +80,28 @@ final _router = GoRouter(
GoRoute(
path: 'profile',
builder: (context, state) {
- return ProfileScreen(
- providers: const [],
- actions: [
- SignedOutAction((context) {
- context.pushReplacement('/');
- }),
- ],
+ return Consumer<ApplicationState>(
+ builder: (context, appState, _) => ProfileScreen(
+ key: ValueKey(appState.emailVerified),
+ providers: const [],
+ actions: [
+ SignedOutAction(
+ ((context) {
+ context.pushReplacement('/');
+ }),
+ ),
+ ],
+ children: [
+ Visibility(
+ visible: !appState.emailVerified,
+ child: OutlinedButton(
+ child: const Text('Recheck Verification State'),
+ onPressed: () {
+ appState.refreshLoggedInUser();
+ },
+ ))
+ ],
+ ),
);
},
),
- name: Add lib/yes_no_selection.dart
path: gtk_flutter/lib/yes_no_selection.dart
replace-contents: |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'app_state.dart';
import 'src/widgets.dart';
class YesNoSelection extends StatelessWidget {
const YesNoSelection({
super.key,
required this.state,
required this.onSelection,
});
final Attending state;
final void Function(Attending selection) onSelection;
@override
Widget build(BuildContext context) {
switch (state) {
case Attending.yes:
return Padding(
padding: const EdgeInsets.all(8.0),
child: Row(
children: [
FilledButton(
onPressed: () => onSelection(Attending.yes),
child: const Text('YES'),
),
const SizedBox(width: 8),
TextButton(
onPressed: () => onSelection(Attending.no),
child: const Text('NO'),
),
],
),
);
case Attending.no:
return Padding(
padding: const EdgeInsets.all(8.0),
child: Row(
children: [
TextButton(
onPressed: () => onSelection(Attending.yes),
child: const Text('YES'),
),
const SizedBox(width: 8),
FilledButton(
onPressed: () => onSelection(Attending.no),
child: const Text('NO'),
),
],
),
);
default:
return Padding(
padding: const EdgeInsets.all(8.0),
child: Row(
children: [
StyledButton(
onPressed: () => onSelection(Attending.yes),
child: const Text('YES'),
),
const SizedBox(width: 8),
StyledButton(
onPressed: () => onSelection(Attending.no),
child: const Text('NO'),
),
],
),
);
}
}
}
- name: Flutter clean
path: gtk_flutter
flutter: clean
- name: Build for iOS
platforms: [ macos ]
path: gtk_flutter
flutter: build ios --debug --simulator
- name: Build for Android
platforms: [ macos ]
path: gtk_flutter
flutter: build apk
- name: Build for macOS
platforms: [ macos ]
path: gtk_flutter
flutter: build macos --debug
- name: Copy step_09
copydir:
from: gtk_flutter
to: step_09
- name: Cleanup
rmdir: gtk_flutter
| codelabs/firebase-get-to-know-flutter/codelab_rebuild.yaml/0 | {
"file_path": "codelabs/firebase-get-to-know-flutter/codelab_rebuild.yaml",
"repo_id": "codelabs",
"token_count": 129559
} | 26 |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:async';
import 'package:flutter/material.dart';
import 'src/widgets.dart';
class GuestBook extends StatefulWidget {
const GuestBook({required this.addMessage, super.key});
final FutureOr<void> Function(String message) addMessage;
@override
State<GuestBook> createState() => _GuestBookState();
}
class _GuestBookState extends State<GuestBook> {
final _formKey = GlobalKey<FormState>(debugLabel: '_GuestBookState');
final _controller = TextEditingController();
@override
Widget build(BuildContext context) {
return Padding(
padding: const EdgeInsets.all(8.0),
child: Form(
key: _formKey,
child: Row(
children: [
Expanded(
child: TextFormField(
controller: _controller,
decoration: const InputDecoration(
hintText: 'Leave a message',
),
validator: (value) {
if (value == null || value.isEmpty) {
return 'Enter your message to continue';
}
return null;
},
),
),
const SizedBox(width: 8),
StyledButton(
onPressed: () async {
if (_formKey.currentState!.validate()) {
await widget.addMessage(_controller.text);
_controller.clear();
}
},
child: const Row(
children: [
Icon(Icons.send),
SizedBox(width: 4),
Text('SEND'),
],
),
),
],
),
),
);
}
}
| codelabs/firebase-get-to-know-flutter/step_06/lib/guest_book.dart/0 | {
"file_path": "codelabs/firebase-get-to-know-flutter/step_06/lib/guest_book.dart",
"repo_id": "codelabs",
"token_count": 932
} | 27 |
#!/usr/bin/env bash
set -e -o pipefail
DIR="${BASH_SOURCE%/*}"
source "$DIR/flutter_ci_script_shared.sh"
declare -a CODELABS=(
"adaptive_app"
"animated-responsive-layout"
"boring_to_beautiful"
"brick_breaker"
"cookbook"
"dart-patterns-and-records"
"deeplink_cookbook"
"ffigen_codelab"
"firebase-auth-flutterfire-ui"
"firebase-emulator-suite"
"firebase-get-to-know-flutter"
"github-client"
"google-maps-in-flutter"
"haiku_generator"
"homescreen_codelab"
"in_app_purchases"
"namer"
"next-gen-ui"
"pesto_flutter"
"testing_codelab"
"tfagents-flutter"
"tfrs-flutter"
"tfserving-flutter"
"tooling"
"webview_flutter"
)
ci_codelabs "stable" "${CODELABS[@]}"
echo "== END OF TESTS"
| codelabs/flutter_ci_script_stable.sh/0 | {
"file_path": "codelabs/flutter_ci_script_stable.sh",
"repo_id": "codelabs",
"token_count": 338
} | 28 |
org.gradle.jvmargs=-Xmx1536M
android.useAndroidX=true
android.enableJetifier=true
| codelabs/homescreen_codelab/step_04/android/gradle.properties/0 | {
"file_path": "codelabs/homescreen_codelab/step_04/android/gradle.properties",
"repo_id": "codelabs",
"token_count": 31
} | 29 |
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>CFBundleDevelopmentRegion</key>
<string>$(DEVELOPMENT_LANGUAGE)</string>
<key>CFBundleExecutable</key>
<string>$(EXECUTABLE_NAME)</string>
<key>CFBundleIdentifier</key>
<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>iap</string>
<key>CFBundlePackageType</key>
<string>APPL</string>
<key>CFBundleShortVersionString</key>
<string>$(FLUTTER_BUILD_NAME)</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleURLTypes</key>
<array>
<dict>
<key>CFBundleTypeRole</key>
<string>Editor</string>
<key>CFBundleURLSchemes</key>
<array>
<string>com.googleusercontent.apps.267794903814-rejjtjrpe3ia81avvoqc3g2ieh7p3eji</string>
</array>
</dict>
</array>
<key>CFBundleVersion</key>
<string>$(FLUTTER_BUILD_NUMBER)</string>
<key>LSRequiresIPhoneOS</key>
<true/>
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsLocalNetworking</key>
<true/>
</dict>
<key>UILaunchStoryboardName</key>
<string>LaunchScreen</string>
<key>UIMainStoryboardFile</key>
<string>Main</string>
<key>UISupportedInterfaceOrientations</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
<key>UISupportedInterfaceOrientations~ipad</key>
<array>
<string>UIInterfaceOrientationPortrait</string>
<string>UIInterfaceOrientationPortraitUpsideDown</string>
<string>UIInterfaceOrientationLandscapeLeft</string>
<string>UIInterfaceOrientationLandscapeRight</string>
</array>
<key>UIViewControllerBasedStatusBarAppearance</key>
<false/>
</dict>
</plist>
| codelabs/in_app_purchases/complete/app/ios/Runner/Info-Release.plist/0 | {
"file_path": "codelabs/in_app_purchases/complete/app/ios/Runner/Info-Release.plist",
"repo_id": "codelabs",
"token_count": 782
} | 30 |
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../logic/firebase_notifier.dart';
class LoginPage extends StatelessWidget {
const LoginPage({super.key});
@override
Widget build(BuildContext context) {
var firebaseNotifier = context.watch<FirebaseNotifier>();
if (firebaseNotifier.isLoggingIn) {
return const Center(
child: Text('Logging in...'),
);
}
return Center(
child: FilledButton(
onPressed: () {
firebaseNotifier.login();
},
child: const Text('Login'),
));
}
}
| codelabs/in_app_purchases/complete/app/lib/pages/login_page.dart/0 | {
"file_path": "codelabs/in_app_purchases/complete/app/lib/pages/login_page.dart",
"repo_id": "codelabs",
"token_count": 234
} | 31 |
import 'package:googleapis/firestore/v1.dart';
import 'products.dart';
enum IAPSource {
googleplay,
appstore,
}
abstract class Purchase {
final IAPSource iapSource;
final String orderId;
final String productId;
final String? userId;
final DateTime purchaseDate;
final ProductType type;
const Purchase({
required this.iapSource,
required this.orderId,
required this.productId,
required this.userId,
required this.purchaseDate,
required this.type,
});
Map<String, Value> toDocument() {
return {
'iapSource': Value(stringValue: iapSource.name),
'orderId': Value(stringValue: orderId),
'productId': Value(stringValue: productId),
'userId': Value(stringValue: userId),
'purchaseDate':
Value(timestampValue: purchaseDate.toUtc().toIso8601String()),
'type': Value(stringValue: type.name),
};
}
Map<String, Value> updateDocument();
static Purchase fromDocument(Document e) {
final type = ProductType.values.firstWhere(
(element) => element.name == e.fields!['type']!.stringValue);
switch (type) {
case ProductType.subscription:
return SubscriptionPurchase(
iapSource: e.fields!['iapSource']!.stringValue == 'googleplay'
? IAPSource.googleplay
: IAPSource.appstore,
orderId: e.fields!['orderId']!.stringValue!,
productId: e.fields!['productId']!.stringValue!,
userId: e.fields!['userId']!.stringValue,
purchaseDate:
DateTime.parse(e.fields!['purchaseDate']!.timestampValue!),
status: SubscriptionStatus.values.firstWhere(
(element) => element.name == e.fields!['status']!.stringValue),
expiryDate: DateTime.tryParse(
e.fields!['expiryDate']?.timestampValue ?? '') ??
DateTime.now(),
);
case ProductType.nonSubscription:
return NonSubscriptionPurchase(
iapSource: e.fields!['iapSource']!.stringValue == 'googleplay'
? IAPSource.googleplay
: IAPSource.appstore,
orderId: e.fields!['orderId']!.stringValue!,
productId: e.fields!['productId']!.stringValue!,
userId: e.fields!['userId']!.stringValue,
purchaseDate:
DateTime.parse(e.fields!['purchaseDate']!.timestampValue!),
status: NonSubscriptionStatus.values.firstWhere(
(element) => element.name == e.fields!['status']!.stringValue),
);
}
}
}
enum NonSubscriptionStatus {
pending,
completed,
cancelled,
}
enum SubscriptionStatus { pending, active, expired }
class NonSubscriptionPurchase extends Purchase {
final NonSubscriptionStatus status;
NonSubscriptionPurchase({
required super.iapSource,
required super.orderId,
required super.productId,
required super.userId,
required super.purchaseDate,
required this.status,
super.type = ProductType.nonSubscription,
});
@override
Map<String, Value> toDocument() {
final doc = super.toDocument();
doc.addAll({
'status': Value(stringValue: status.name),
});
return doc;
}
@override
Map<String, Value> updateDocument() {
return {
'status': Value(stringValue: status.name),
};
}
@override
String toString() {
return 'NonSubscriptionPurchase { '
'iapSource: $iapSource, '
'orderId: $orderId, '
'productId: $productId, '
'userId: $userId, '
'purchaseDate: $purchaseDate, '
'status: $status, '
'type: $type '
'}';
}
}
class SubscriptionPurchase extends Purchase {
final SubscriptionStatus status;
final DateTime expiryDate;
SubscriptionPurchase({
required super.iapSource,
required super.orderId,
required super.productId,
required super.userId,
required super.purchaseDate,
required this.status,
required this.expiryDate,
super.type = ProductType.subscription,
});
@override
Map<String, Value> toDocument() {
final doc = super.toDocument();
doc.addAll({
'expiryDate': Value(timestampValue: expiryDate.toUtc().toIso8601String()),
'status': Value(stringValue: status.name),
});
return doc;
}
@override
Map<String, Value> updateDocument() {
return {
'status': Value(stringValue: status.name),
};
}
@override
String toString() {
return 'SubscriptionPurchase { '
'iapSource: $iapSource, '
'orderId: $orderId, '
'productId: $productId, '
'userId: $userId, '
'purchaseDate: $purchaseDate, '
'status: $status, '
'expiryDate: $expiryDate, '
'type: $type '
'}';
}
}
class IapRepository {
final FirestoreApi api;
final String projectId;
IapRepository(this.api, this.projectId);
Future<void> createOrUpdatePurchase(Purchase purchaseData) async {
print('Updating $purchaseData');
final purchaseId = _purchaseId(purchaseData);
await api.projects.databases.documents.commit(
CommitRequest(
writes: [
Write(
update: Document(
fields: purchaseData.toDocument(),
name:
'projects/$projectId/databases/(default)/documents/purchases/$purchaseId'),
),
],
),
'projects/$projectId/databases/(default)',
);
}
Future<void> updatePurchase(Purchase purchaseData) async {
print('Updating $purchaseData');
final purchaseId = _purchaseId(purchaseData);
await api.projects.databases.documents.commit(
CommitRequest(
writes: [
Write(
update: Document(
fields: purchaseData.updateDocument(),
name:
'projects/$projectId/databases/(default)/documents/purchases/$purchaseId'),
updateMask: DocumentMask(fieldPaths: ['status']),
),
],
),
'projects/$projectId/databases/(default)',
);
}
String _purchaseId(Purchase purchaseData) {
return '${purchaseData.iapSource.name}_${purchaseData.orderId}';
}
Future<List<Purchase>> getPurchases() async {
final list = await api.projects.databases.documents.list(
'projects/$projectId/databases/(default)/documents',
'purchases',
);
return list.documents!.map((e) => Purchase.fromDocument(e)).toList();
}
}
| codelabs/in_app_purchases/complete/dart-backend/lib/iap_repository.dart/0 | {
"file_path": "codelabs/in_app_purchases/complete/dart-backend/lib/iap_repository.dart",
"repo_id": "codelabs",
"token_count": 2640
} | 32 |
import 'dart:async';
import 'package:app_store_server_sdk/app_store_server_sdk.dart';
import 'constants.dart';
import 'iap_repository.dart';
import 'products.dart';
import 'purchase_handler.dart';
class AppStorePurchaseHandler extends PurchaseHandler {
final IapRepository iapRepository;
AppStorePurchaseHandler(
this.iapRepository,
);
final _iTunesAPI = ITunesApi(
ITunesHttpClient(
ITunesEnvironment.sandbox(),
loggingEnabled: true,
),
);
@override
Future<bool> handleNonSubscription({
required String userId,
required ProductData productData,
required String token,
}) {
return handleValidation(userId: userId, token: token);
}
@override
Future<bool> handleSubscription({
required String userId,
required ProductData productData,
required String token,
}) {
return handleValidation(userId: userId, token: token);
}
/// Handle purchase validation.
Future<bool> handleValidation({
required String userId,
required String token,
}) async {
print('AppStorePurchaseHandler.handleValidation');
final response = await _iTunesAPI.verifyReceipt(
password: appStoreSharedSecret,
receiptData: token,
);
print('response: $response');
if (response.status == 0) {
print('Successfully verified purchase');
final receipts = response.latestReceiptInfo ?? [];
for (final receipt in receipts) {
final product = productDataMap[receipt.productId];
if (product == null) {
print('Error: Unknown product: ${receipt.productId}');
continue;
}
switch (product.type) {
case ProductType.nonSubscription:
await iapRepository.createOrUpdatePurchase(NonSubscriptionPurchase(
userId: userId,
productId: receipt.productId ?? '',
iapSource: IAPSource.appstore,
orderId: receipt.originalTransactionId ?? '',
purchaseDate: DateTime.fromMillisecondsSinceEpoch(
int.parse(receipt.originalPurchaseDateMs ?? '0')),
type: product.type,
status: NonSubscriptionStatus.completed,
));
break;
case ProductType.subscription:
await iapRepository.createOrUpdatePurchase(SubscriptionPurchase(
userId: userId,
productId: receipt.productId ?? '',
iapSource: IAPSource.appstore,
orderId: receipt.originalTransactionId ?? '',
purchaseDate: DateTime.fromMillisecondsSinceEpoch(
int.parse(receipt.originalPurchaseDateMs ?? '0')),
type: product.type,
expiryDate: DateTime.fromMillisecondsSinceEpoch(
int.parse(receipt.expiresDateMs ?? '0')),
status: SubscriptionStatus.active,
));
break;
}
}
return true;
} else {
print('Error: Status: ${response.status}');
return false;
}
}
}
| codelabs/in_app_purchases/step_09/dart-backend/lib/app_store_purchase_handler.dart/0 | {
"file_path": "codelabs/in_app_purchases/step_09/dart-backend/lib/app_store_purchase_handler.dart",
"repo_id": "codelabs",
"token_count": 1263
} | 33 |
#include "Generated.xcconfig"
| codelabs/namer/step_04_a_widget/ios/Flutter/Debug.xcconfig/0 | {
"file_path": "codelabs/namer/step_04_a_widget/ios/Flutter/Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 12
} | 34 |
#include "ephemeral/Flutter-Generated.xcconfig"
| codelabs/namer/step_04_a_widget/macos/Flutter/Flutter-Debug.xcconfig/0 | {
"file_path": "codelabs/namer/step_04_a_widget/macos/Flutter/Flutter-Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 19
} | 35 |
#import "GeneratedPluginRegistrant.h"
| codelabs/namer/step_04_b_behavior/ios/Runner/Runner-Bridging-Header.h/0 | {
"file_path": "codelabs/namer/step_04_b_behavior/ios/Runner/Runner-Bridging-Header.h",
"repo_id": "codelabs",
"token_count": 13
} | 36 |
#include "../../Flutter/Flutter-Debug.xcconfig"
#include "Warnings.xcconfig"
| codelabs/namer/step_04_b_behavior/macos/Runner/Configs/Debug.xcconfig/0 | {
"file_path": "codelabs/namer/step_04_b_behavior/macos/Runner/Configs/Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 37 |
org.gradle.jvmargs=-Xmx4G
android.useAndroidX=true
android.enableJetifier=true
| codelabs/namer/step_05_h_center_horizontal/android/gradle.properties/0 | {
"file_path": "codelabs/namer/step_05_h_center_horizontal/android/gradle.properties",
"repo_id": "codelabs",
"token_count": 30
} | 38 |
#include "Generated.xcconfig"
| codelabs/namer/step_06_a_business_logic/ios/Flutter/Release.xcconfig/0 | {
"file_path": "codelabs/namer/step_06_a_business_logic/ios/Flutter/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 12
} | 39 |
#include "ephemeral/Flutter-Generated.xcconfig"
| codelabs/namer/step_06_a_business_logic/macos/Flutter/Flutter-Release.xcconfig/0 | {
"file_path": "codelabs/namer/step_06_a_business_logic/macos/Flutter/Flutter-Release.xcconfig",
"repo_id": "codelabs",
"token_count": 19
} | 40 |
#include "../../Flutter/Flutter-Release.xcconfig"
#include "Warnings.xcconfig"
| codelabs/namer/step_06_b_add_row/macos/Runner/Configs/Release.xcconfig/0 | {
"file_path": "codelabs/namer/step_06_b_add_row/macos/Runner/Configs/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 41 |
#include "Generated.xcconfig"
| codelabs/namer/step_07_c_add_selectedindex/ios/Flutter/Debug.xcconfig/0 | {
"file_path": "codelabs/namer/step_07_c_add_selectedindex/ios/Flutter/Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 12
} | 42 |
#include "ephemeral/Flutter-Generated.xcconfig"
| codelabs/namer/step_07_c_add_selectedindex/macos/Flutter/Flutter-Debug.xcconfig/0 | {
"file_path": "codelabs/namer/step_07_c_add_selectedindex/macos/Flutter/Flutter-Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 19
} | 43 |
#import "GeneratedPluginRegistrant.h"
| codelabs/namer/step_07_d_use_selectedindex/ios/Runner/Runner-Bridging-Header.h/0 | {
"file_path": "codelabs/namer/step_07_d_use_selectedindex/ios/Runner/Runner-Bridging-Header.h",
"repo_id": "codelabs",
"token_count": 13
} | 44 |
#include "../../Flutter/Flutter-Debug.xcconfig"
#include "Warnings.xcconfig"
| codelabs/namer/step_07_d_use_selectedindex/macos/Runner/Configs/Debug.xcconfig/0 | {
"file_path": "codelabs/namer/step_07_d_use_selectedindex/macos/Runner/Configs/Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 45 |
#include "../../Flutter/Flutter-Debug.xcconfig"
#include "Warnings.xcconfig"
| codelabs/next-gen-ui/step_02_c/macos/Runner/Configs/Debug.xcconfig/0 | {
"file_path": "codelabs/next-gen-ui/step_02_c/macos/Runner/Configs/Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 46 |
#include "../../Flutter/Flutter-Debug.xcconfig"
#include "Warnings.xcconfig"
| codelabs/next-gen-ui/step_04_e/macos/Runner/Configs/Debug.xcconfig/0 | {
"file_path": "codelabs/next-gen-ui/step_04_e/macos/Runner/Configs/Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 47 |
include: ../../analysis_options.yaml
| codelabs/testing_codelab/step_04/analysis_options.yaml/0 | {
"file_path": "codelabs/testing_codelab/step_04/analysis_options.yaml",
"repo_id": "codelabs",
"token_count": 12
} | 48 |
#import "GeneratedPluginRegistrant.h"
| codelabs/testing_codelab/step_08/ios/Runner/Runner-Bridging-Header.h/0 | {
"file_path": "codelabs/testing_codelab/step_08/ios/Runner/Runner-Bridging-Header.h",
"repo_id": "codelabs",
"token_count": 13
} | 49 |
#include "../../Flutter/Flutter-Release.xcconfig"
#include "Warnings.xcconfig"
| codelabs/tfagents-flutter/step3/frontend/macos/Runner/Configs/Release.xcconfig/0 | {
"file_path": "codelabs/tfagents-flutter/step3/frontend/macos/Runner/Configs/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 50 |
#include "Generated.xcconfig"
| codelabs/tfagents-flutter/step4/frontend/ios/Flutter/Release.xcconfig/0 | {
"file_path": "codelabs/tfagents-flutter/step4/frontend/ios/Flutter/Release.xcconfig",
"repo_id": "codelabs",
"token_count": 12
} | 51 |
#include "ephemeral/Flutter-Generated.xcconfig"
| codelabs/tfagents-flutter/step4/frontend/macos/Flutter/Flutter-Release.xcconfig/0 | {
"file_path": "codelabs/tfagents-flutter/step4/frontend/macos/Flutter/Flutter-Release.xcconfig",
"repo_id": "codelabs",
"token_count": 19
} | 52 |
org.gradle.jvmargs=-Xmx1536M
android.useAndroidX=true
android.enableJetifier=true
| codelabs/tfagents-flutter/step6/frontend/android/gradle.properties/0 | {
"file_path": "codelabs/tfagents-flutter/step6/frontend/android/gradle.properties",
"repo_id": "codelabs",
"token_count": 31
} | 53 |
#include "../../Flutter/Flutter-Debug.xcconfig"
#include "Warnings.xcconfig"
| codelabs/tfrs-flutter/finished/frontend/macos/Runner/Configs/Debug.xcconfig/0 | {
"file_path": "codelabs/tfrs-flutter/finished/frontend/macos/Runner/Configs/Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 32
} | 54 |
org.gradle.jvmargs=-Xmx1536M
android.useAndroidX=true
android.enableJetifier=true
| codelabs/tfrs-flutter/step0/frontend/android/gradle.properties/0 | {
"file_path": "codelabs/tfrs-flutter/step0/frontend/android/gradle.properties",
"repo_id": "codelabs",
"token_count": 31
} | 55 |
#include "ephemeral/Flutter-Generated.xcconfig"
| codelabs/tfrs-flutter/step4/frontend/macos/Flutter/Flutter-Debug.xcconfig/0 | {
"file_path": "codelabs/tfrs-flutter/step4/frontend/macos/Flutter/Flutter-Debug.xcconfig",
"repo_id": "codelabs",
"token_count": 19
} | 56 |
///
// Generated code. Do not modify.
// source: tensorflow/core/example/feature.proto
//
// @dart = 2.12
// ignore_for_file: annotate_overrides,camel_case_types,unnecessary_const,non_constant_identifier_names,library_prefixes,unused_import,unused_shown_name,return_of_invalid_type,unnecessary_this,prefer_final_fields,deprecated_member_use_from_same_package
import 'dart:core' as $core;
import 'dart:convert' as $convert;
import 'dart:typed_data' as $typed_data;
@$core.Deprecated('Use bytesListDescriptor instead')
const BytesList$json = const {
'1': 'BytesList',
'2': const [
const {'1': 'value', '3': 1, '4': 3, '5': 12, '10': 'value'},
],
};
/// Descriptor for `BytesList`. Decode as a `google.protobuf.DescriptorProto`.
final $typed_data.Uint8List bytesListDescriptor =
$convert.base64Decode('CglCeXRlc0xpc3QSFAoFdmFsdWUYASADKAxSBXZhbHVl');
@$core.Deprecated('Use floatListDescriptor instead')
const FloatList$json = const {
'1': 'FloatList',
'2': const [
const {
'1': 'value',
'3': 1,
'4': 3,
'5': 2,
'8': const {'2': true},
'10': 'value',
},
],
};
/// Descriptor for `FloatList`. Decode as a `google.protobuf.DescriptorProto`.
final $typed_data.Uint8List floatListDescriptor = $convert
.base64Decode('CglGbG9hdExpc3QSGAoFdmFsdWUYASADKAJCAhABUgV2YWx1ZQ==');
@$core.Deprecated('Use int64ListDescriptor instead')
const Int64List$json = const {
'1': 'Int64List',
'2': const [
const {
'1': 'value',
'3': 1,
'4': 3,
'5': 3,
'8': const {'2': true},
'10': 'value',
},
],
};
/// Descriptor for `Int64List`. Decode as a `google.protobuf.DescriptorProto`.
final $typed_data.Uint8List int64ListDescriptor = $convert
.base64Decode('CglJbnQ2NExpc3QSGAoFdmFsdWUYASADKANCAhABUgV2YWx1ZQ==');
@$core.Deprecated('Use featureDescriptor instead')
const Feature$json = const {
'1': 'Feature',
'2': const [
const {
'1': 'bytes_list',
'3': 1,
'4': 1,
'5': 11,
'6': '.tensorflow.BytesList',
'9': 0,
'10': 'bytesList'
},
const {
'1': 'float_list',
'3': 2,
'4': 1,
'5': 11,
'6': '.tensorflow.FloatList',
'9': 0,
'10': 'floatList'
},
const {
'1': 'int64_list',
'3': 3,
'4': 1,
'5': 11,
'6': '.tensorflow.Int64List',
'9': 0,
'10': 'int64List'
},
],
'8': const [
const {'1': 'kind'},
],
};
/// Descriptor for `Feature`. Decode as a `google.protobuf.DescriptorProto`.
final $typed_data.Uint8List featureDescriptor = $convert.base64Decode(
'CgdGZWF0dXJlEjYKCmJ5dGVzX2xpc3QYASABKAsyFS50ZW5zb3JmbG93LkJ5dGVzTGlzdEgAUglieXRlc0xpc3QSNgoKZmxvYXRfbGlzdBgCIAEoCzIVLnRlbnNvcmZsb3cuRmxvYXRMaXN0SABSCWZsb2F0TGlzdBI2CgppbnQ2NF9saXN0GAMgASgLMhUudGVuc29yZmxvdy5JbnQ2NExpc3RIAFIJaW50NjRMaXN0QgYKBGtpbmQ=');
@$core.Deprecated('Use featuresDescriptor instead')
const Features$json = const {
'1': 'Features',
'2': const [
const {
'1': 'feature',
'3': 1,
'4': 3,
'5': 11,
'6': '.tensorflow.Features.FeatureEntry',
'10': 'feature'
},
],
'3': const [Features_FeatureEntry$json],
};
@$core.Deprecated('Use featuresDescriptor instead')
const Features_FeatureEntry$json = const {
'1': 'FeatureEntry',
'2': const [
const {'1': 'key', '3': 1, '4': 1, '5': 9, '10': 'key'},
const {
'1': 'value',
'3': 2,
'4': 1,
'5': 11,
'6': '.tensorflow.Feature',
'10': 'value'
},
],
'7': const {'7': true},
};
/// Descriptor for `Features`. Decode as a `google.protobuf.DescriptorProto`.
final $typed_data.Uint8List featuresDescriptor = $convert.base64Decode(
'CghGZWF0dXJlcxI7CgdmZWF0dXJlGAEgAygLMiEudGVuc29yZmxvdy5GZWF0dXJlcy5GZWF0dXJlRW50cnlSB2ZlYXR1cmUaTwoMRmVhdHVyZUVudHJ5EhAKA2tleRgBIAEoCVIDa2V5EikKBXZhbHVlGAIgASgLMhMudGVuc29yZmxvdy5GZWF0dXJlUgV2YWx1ZToCOAE=');
@$core.Deprecated('Use featureListDescriptor instead')
const FeatureList$json = const {
'1': 'FeatureList',
'2': const [
const {
'1': 'feature',
'3': 1,
'4': 3,
'5': 11,
'6': '.tensorflow.Feature',
'10': 'feature'
},
],
};
/// Descriptor for `FeatureList`. Decode as a `google.protobuf.DescriptorProto`.
final $typed_data.Uint8List featureListDescriptor = $convert.base64Decode(
'CgtGZWF0dXJlTGlzdBItCgdmZWF0dXJlGAEgAygLMhMudGVuc29yZmxvdy5GZWF0dXJlUgdmZWF0dXJl');
@$core.Deprecated('Use featureListsDescriptor instead')
const FeatureLists$json = const {
'1': 'FeatureLists',
'2': const [
const {
'1': 'feature_list',
'3': 1,
'4': 3,
'5': 11,
'6': '.tensorflow.FeatureLists.FeatureListEntry',
'10': 'featureList'
},
],
'3': const [FeatureLists_FeatureListEntry$json],
};
@$core.Deprecated('Use featureListsDescriptor instead')
const FeatureLists_FeatureListEntry$json = const {
'1': 'FeatureListEntry',
'2': const [
const {'1': 'key', '3': 1, '4': 1, '5': 9, '10': 'key'},
const {
'1': 'value',
'3': 2,
'4': 1,
'5': 11,
'6': '.tensorflow.FeatureList',
'10': 'value'
},
],
'7': const {'7': true},
};
/// Descriptor for `FeatureLists`. Decode as a `google.protobuf.DescriptorProto`.
final $typed_data.Uint8List featureListsDescriptor = $convert.base64Decode(
'CgxGZWF0dXJlTGlzdHMSTAoMZmVhdHVyZV9saXN0GAEgAygLMikudGVuc29yZmxvdy5GZWF0dXJlTGlzdHMuRmVhdHVyZUxpc3RFbnRyeVILZmVhdHVyZUxpc3QaVwoQRmVhdHVyZUxpc3RFbnRyeRIQCgNrZXkYASABKAlSA2tleRItCgV2YWx1ZRgCIAEoCzIXLnRlbnNvcmZsb3cuRmVhdHVyZUxpc3RSBXZhbHVlOgI4AQ==');
| codelabs/tfserving-flutter/codelab2/starter/lib/proto/generated/tensorflow/core/example/feature.pbjson.dart/0 | {
"file_path": "codelabs/tfserving-flutter/codelab2/starter/lib/proto/generated/tensorflow/core/example/feature.pbjson.dart",
"repo_id": "codelabs",
"token_count": 2803
} | 57 |
///
// Generated code. Do not modify.
// source: tensorflow/core/framework/op_def.proto
//
// @dart = 2.12
// ignore_for_file: annotate_overrides,camel_case_types,unnecessary_const,non_constant_identifier_names,library_prefixes,unused_import,unused_shown_name,return_of_invalid_type,unnecessary_this,prefer_final_fields
import 'dart:core' as $core;
import 'package:fixnum/fixnum.dart' as $fixnum;
import 'package:protobuf/protobuf.dart' as $pb;
import 'resource_handle.pb.dart' as $0;
import 'full_type.pb.dart' as $1;
import 'attr_value.pb.dart' as $2;
import 'types.pbenum.dart' as $3;
class OpDef_ArgDef extends $pb.GeneratedMessage {
static final $pb.BuilderInfo _i = $pb.BuilderInfo(
const $core.bool.fromEnvironment('protobuf.omit_message_names')
? ''
: 'OpDef.ArgDef',
package: const $pb.PackageName(
const $core.bool.fromEnvironment('protobuf.omit_message_names')
? ''
: 'tensorflow'),
createEmptyInstance: create)
..aOS(
1,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'name')
..aOS(
2,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'description')
..e<$3.DataType>(
3,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'type',
$pb.PbFieldType.OE,
defaultOrMaker: $3.DataType.DT_INVALID,
valueOf: $3.DataType.valueOf,
enumValues: $3.DataType.values)
..aOS(
4,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'typeAttr')
..aOS(
5,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'numberAttr')
..aOS(
6,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'typeListAttr')
..pc<$0.ResourceHandleProto_DtypeAndShape>(
7,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'handleData',
$pb.PbFieldType.PM,
subBuilder: $0.ResourceHandleProto_DtypeAndShape.create)
..aOB(
16,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'isRef')
..aOM<$1.FullTypeDef>(
17,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'experimentalFullType',
subBuilder: $1.FullTypeDef.create)
..hasRequiredFields = false;
OpDef_ArgDef._() : super();
factory OpDef_ArgDef({
$core.String? name,
$core.String? description,
$3.DataType? type,
$core.String? typeAttr,
$core.String? numberAttr,
$core.String? typeListAttr,
$core.Iterable<$0.ResourceHandleProto_DtypeAndShape>? handleData,
$core.bool? isRef,
$1.FullTypeDef? experimentalFullType,
}) {
final _result = create();
if (name != null) {
_result.name = name;
}
if (description != null) {
_result.description = description;
}
if (type != null) {
_result.type = type;
}
if (typeAttr != null) {
_result.typeAttr = typeAttr;
}
if (numberAttr != null) {
_result.numberAttr = numberAttr;
}
if (typeListAttr != null) {
_result.typeListAttr = typeListAttr;
}
if (handleData != null) {
_result.handleData.addAll(handleData);
}
if (isRef != null) {
_result.isRef = isRef;
}
if (experimentalFullType != null) {
_result.experimentalFullType = experimentalFullType;
}
return _result;
}
factory OpDef_ArgDef.fromBuffer($core.List<$core.int> i,
[$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) =>
create()..mergeFromBuffer(i, r);
factory OpDef_ArgDef.fromJson($core.String i,
[$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) =>
create()..mergeFromJson(i, r);
@$core.Deprecated('Using this can add significant overhead to your binary. '
'Use [GeneratedMessageGenericExtensions.deepCopy] instead. '
'Will be removed in next major version')
OpDef_ArgDef clone() => OpDef_ArgDef()..mergeFromMessage(this);
@$core.Deprecated('Using this can add significant overhead to your binary. '
'Use [GeneratedMessageGenericExtensions.rebuild] instead. '
'Will be removed in next major version')
OpDef_ArgDef copyWith(void Function(OpDef_ArgDef) updates) =>
super.copyWith((message) => updates(message as OpDef_ArgDef))
as OpDef_ArgDef; // ignore: deprecated_member_use
$pb.BuilderInfo get info_ => _i;
@$core.pragma('dart2js:noInline')
static OpDef_ArgDef create() => OpDef_ArgDef._();
OpDef_ArgDef createEmptyInstance() => create();
static $pb.PbList<OpDef_ArgDef> createRepeated() =>
$pb.PbList<OpDef_ArgDef>();
@$core.pragma('dart2js:noInline')
static OpDef_ArgDef getDefault() => _defaultInstance ??=
$pb.GeneratedMessage.$_defaultFor<OpDef_ArgDef>(create);
static OpDef_ArgDef? _defaultInstance;
@$pb.TagNumber(1)
$core.String get name => $_getSZ(0);
@$pb.TagNumber(1)
set name($core.String v) {
$_setString(0, v);
}
@$pb.TagNumber(1)
$core.bool hasName() => $_has(0);
@$pb.TagNumber(1)
void clearName() => clearField(1);
@$pb.TagNumber(2)
$core.String get description => $_getSZ(1);
@$pb.TagNumber(2)
set description($core.String v) {
$_setString(1, v);
}
@$pb.TagNumber(2)
$core.bool hasDescription() => $_has(1);
@$pb.TagNumber(2)
void clearDescription() => clearField(2);
@$pb.TagNumber(3)
$3.DataType get type => $_getN(2);
@$pb.TagNumber(3)
set type($3.DataType v) {
setField(3, v);
}
@$pb.TagNumber(3)
$core.bool hasType() => $_has(2);
@$pb.TagNumber(3)
void clearType() => clearField(3);
@$pb.TagNumber(4)
$core.String get typeAttr => $_getSZ(3);
@$pb.TagNumber(4)
set typeAttr($core.String v) {
$_setString(3, v);
}
@$pb.TagNumber(4)
$core.bool hasTypeAttr() => $_has(3);
@$pb.TagNumber(4)
void clearTypeAttr() => clearField(4);
@$pb.TagNumber(5)
$core.String get numberAttr => $_getSZ(4);
@$pb.TagNumber(5)
set numberAttr($core.String v) {
$_setString(4, v);
}
@$pb.TagNumber(5)
$core.bool hasNumberAttr() => $_has(4);
@$pb.TagNumber(5)
void clearNumberAttr() => clearField(5);
@$pb.TagNumber(6)
$core.String get typeListAttr => $_getSZ(5);
@$pb.TagNumber(6)
set typeListAttr($core.String v) {
$_setString(5, v);
}
@$pb.TagNumber(6)
$core.bool hasTypeListAttr() => $_has(5);
@$pb.TagNumber(6)
void clearTypeListAttr() => clearField(6);
@$pb.TagNumber(7)
$core.List<$0.ResourceHandleProto_DtypeAndShape> get handleData =>
$_getList(6);
@$pb.TagNumber(16)
$core.bool get isRef => $_getBF(7);
@$pb.TagNumber(16)
set isRef($core.bool v) {
$_setBool(7, v);
}
@$pb.TagNumber(16)
$core.bool hasIsRef() => $_has(7);
@$pb.TagNumber(16)
void clearIsRef() => clearField(16);
@$pb.TagNumber(17)
$1.FullTypeDef get experimentalFullType => $_getN(8);
@$pb.TagNumber(17)
set experimentalFullType($1.FullTypeDef v) {
setField(17, v);
}
@$pb.TagNumber(17)
$core.bool hasExperimentalFullType() => $_has(8);
@$pb.TagNumber(17)
void clearExperimentalFullType() => clearField(17);
@$pb.TagNumber(17)
$1.FullTypeDef ensureExperimentalFullType() => $_ensure(8);
}
class OpDef_AttrDef extends $pb.GeneratedMessage {
static final $pb.BuilderInfo _i = $pb.BuilderInfo(
const $core.bool.fromEnvironment('protobuf.omit_message_names')
? ''
: 'OpDef.AttrDef',
package: const $pb.PackageName(
const $core.bool.fromEnvironment('protobuf.omit_message_names')
? ''
: 'tensorflow'),
createEmptyInstance: create)
..aOS(
1,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'name')
..aOS(
2,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'type')
..aOM<$2.AttrValue>(
3,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'defaultValue',
subBuilder: $2.AttrValue.create)
..aOS(
4,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'description')
..aOB(
5,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'hasMinimum')
..aInt64(
6,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'minimum')
..aOM<$2.AttrValue>(
7,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'allowedValues',
subBuilder: $2.AttrValue.create)
..hasRequiredFields = false;
OpDef_AttrDef._() : super();
factory OpDef_AttrDef({
$core.String? name,
$core.String? type,
$2.AttrValue? defaultValue,
$core.String? description,
$core.bool? hasMinimum,
$fixnum.Int64? minimum_6,
$2.AttrValue? allowedValues,
}) {
final _result = create();
if (name != null) {
_result.name = name;
}
if (type != null) {
_result.type = type;
}
if (defaultValue != null) {
_result.defaultValue = defaultValue;
}
if (description != null) {
_result.description = description;
}
if (hasMinimum != null) {
_result.hasMinimum = hasMinimum;
}
if (minimum_6 != null) {
_result.minimum_6 = minimum_6;
}
if (allowedValues != null) {
_result.allowedValues = allowedValues;
}
return _result;
}
factory OpDef_AttrDef.fromBuffer($core.List<$core.int> i,
[$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) =>
create()..mergeFromBuffer(i, r);
factory OpDef_AttrDef.fromJson($core.String i,
[$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) =>
create()..mergeFromJson(i, r);
@$core.Deprecated('Using this can add significant overhead to your binary. '
'Use [GeneratedMessageGenericExtensions.deepCopy] instead. '
'Will be removed in next major version')
OpDef_AttrDef clone() => OpDef_AttrDef()..mergeFromMessage(this);
@$core.Deprecated('Using this can add significant overhead to your binary. '
'Use [GeneratedMessageGenericExtensions.rebuild] instead. '
'Will be removed in next major version')
OpDef_AttrDef copyWith(void Function(OpDef_AttrDef) updates) =>
super.copyWith((message) => updates(message as OpDef_AttrDef))
as OpDef_AttrDef; // ignore: deprecated_member_use
$pb.BuilderInfo get info_ => _i;
@$core.pragma('dart2js:noInline')
static OpDef_AttrDef create() => OpDef_AttrDef._();
OpDef_AttrDef createEmptyInstance() => create();
static $pb.PbList<OpDef_AttrDef> createRepeated() =>
$pb.PbList<OpDef_AttrDef>();
@$core.pragma('dart2js:noInline')
static OpDef_AttrDef getDefault() => _defaultInstance ??=
$pb.GeneratedMessage.$_defaultFor<OpDef_AttrDef>(create);
static OpDef_AttrDef? _defaultInstance;
@$pb.TagNumber(1)
$core.String get name => $_getSZ(0);
@$pb.TagNumber(1)
set name($core.String v) {
$_setString(0, v);
}
@$pb.TagNumber(1)
$core.bool hasName() => $_has(0);
@$pb.TagNumber(1)
void clearName() => clearField(1);
@$pb.TagNumber(2)
$core.String get type => $_getSZ(1);
@$pb.TagNumber(2)
set type($core.String v) {
$_setString(1, v);
}
@$pb.TagNumber(2)
$core.bool hasType() => $_has(1);
@$pb.TagNumber(2)
void clearType() => clearField(2);
@$pb.TagNumber(3)
$2.AttrValue get defaultValue => $_getN(2);
@$pb.TagNumber(3)
set defaultValue($2.AttrValue v) {
setField(3, v);
}
@$pb.TagNumber(3)
$core.bool hasDefaultValue() => $_has(2);
@$pb.TagNumber(3)
void clearDefaultValue() => clearField(3);
@$pb.TagNumber(3)
$2.AttrValue ensureDefaultValue() => $_ensure(2);
@$pb.TagNumber(4)
$core.String get description => $_getSZ(3);
@$pb.TagNumber(4)
set description($core.String v) {
$_setString(3, v);
}
@$pb.TagNumber(4)
$core.bool hasDescription() => $_has(3);
@$pb.TagNumber(4)
void clearDescription() => clearField(4);
@$pb.TagNumber(5)
$core.bool get hasMinimum => $_getBF(4);
@$pb.TagNumber(5)
set hasMinimum($core.bool v) {
$_setBool(4, v);
}
@$pb.TagNumber(5)
$core.bool hasHasMinimum() => $_has(4);
@$pb.TagNumber(5)
void clearHasMinimum() => clearField(5);
@$pb.TagNumber(6)
$fixnum.Int64 get minimum_6 => $_getI64(5);
@$pb.TagNumber(6)
set minimum_6($fixnum.Int64 v) {
$_setInt64(5, v);
}
@$pb.TagNumber(6)
$core.bool hasMinimum_6() => $_has(5);
@$pb.TagNumber(6)
void clearMinimum_6() => clearField(6);
@$pb.TagNumber(7)
$2.AttrValue get allowedValues => $_getN(6);
@$pb.TagNumber(7)
set allowedValues($2.AttrValue v) {
setField(7, v);
}
@$pb.TagNumber(7)
$core.bool hasAllowedValues() => $_has(6);
@$pb.TagNumber(7)
void clearAllowedValues() => clearField(7);
@$pb.TagNumber(7)
$2.AttrValue ensureAllowedValues() => $_ensure(6);
}
class OpDef extends $pb.GeneratedMessage {
static final $pb.BuilderInfo _i = $pb.BuilderInfo(
const $core.bool.fromEnvironment('protobuf.omit_message_names')
? ''
: 'OpDef',
package: const $pb.PackageName(
const $core.bool.fromEnvironment('protobuf.omit_message_names')
? ''
: 'tensorflow'),
createEmptyInstance: create)
..aOS(
1,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'name')
..pc<OpDef_ArgDef>(
2,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'inputArg',
$pb.PbFieldType.PM,
subBuilder: OpDef_ArgDef.create)
..pc<OpDef_ArgDef>(
3,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'outputArg',
$pb.PbFieldType.PM,
subBuilder: OpDef_ArgDef.create)
..pc<OpDef_AttrDef>(
4,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'attr',
$pb.PbFieldType.PM,
subBuilder: OpDef_AttrDef.create)
..aOS(
5,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'summary')
..aOS(
6,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'description')
..aOM<OpDeprecation>(
8,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'deprecation',
subBuilder: OpDeprecation.create)
..aOB(
16,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'isAggregate')
..aOB(
17,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'isStateful')
..aOB(
18,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'isCommutative')
..aOB(
19,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'allowsUninitializedInput')
..pPS(
20,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'controlOutput')
..aOB(
21,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'isDistributedCommunication')
..hasRequiredFields = false;
OpDef._() : super();
factory OpDef({
$core.String? name,
$core.Iterable<OpDef_ArgDef>? inputArg,
$core.Iterable<OpDef_ArgDef>? outputArg,
$core.Iterable<OpDef_AttrDef>? attr,
$core.String? summary,
$core.String? description,
OpDeprecation? deprecation,
$core.bool? isAggregate,
$core.bool? isStateful,
$core.bool? isCommutative,
$core.bool? allowsUninitializedInput,
$core.Iterable<$core.String>? controlOutput,
$core.bool? isDistributedCommunication,
}) {
final _result = create();
if (name != null) {
_result.name = name;
}
if (inputArg != null) {
_result.inputArg.addAll(inputArg);
}
if (outputArg != null) {
_result.outputArg.addAll(outputArg);
}
if (attr != null) {
_result.attr.addAll(attr);
}
if (summary != null) {
_result.summary = summary;
}
if (description != null) {
_result.description = description;
}
if (deprecation != null) {
_result.deprecation = deprecation;
}
if (isAggregate != null) {
_result.isAggregate = isAggregate;
}
if (isStateful != null) {
_result.isStateful = isStateful;
}
if (isCommutative != null) {
_result.isCommutative = isCommutative;
}
if (allowsUninitializedInput != null) {
_result.allowsUninitializedInput = allowsUninitializedInput;
}
if (controlOutput != null) {
_result.controlOutput.addAll(controlOutput);
}
if (isDistributedCommunication != null) {
_result.isDistributedCommunication = isDistributedCommunication;
}
return _result;
}
factory OpDef.fromBuffer($core.List<$core.int> i,
[$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) =>
create()..mergeFromBuffer(i, r);
factory OpDef.fromJson($core.String i,
[$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) =>
create()..mergeFromJson(i, r);
@$core.Deprecated('Using this can add significant overhead to your binary. '
'Use [GeneratedMessageGenericExtensions.deepCopy] instead. '
'Will be removed in next major version')
OpDef clone() => OpDef()..mergeFromMessage(this);
@$core.Deprecated('Using this can add significant overhead to your binary. '
'Use [GeneratedMessageGenericExtensions.rebuild] instead. '
'Will be removed in next major version')
OpDef copyWith(void Function(OpDef) updates) =>
super.copyWith((message) => updates(message as OpDef))
as OpDef; // ignore: deprecated_member_use
$pb.BuilderInfo get info_ => _i;
@$core.pragma('dart2js:noInline')
static OpDef create() => OpDef._();
OpDef createEmptyInstance() => create();
static $pb.PbList<OpDef> createRepeated() => $pb.PbList<OpDef>();
@$core.pragma('dart2js:noInline')
static OpDef getDefault() =>
_defaultInstance ??= $pb.GeneratedMessage.$_defaultFor<OpDef>(create);
static OpDef? _defaultInstance;
@$pb.TagNumber(1)
$core.String get name => $_getSZ(0);
@$pb.TagNumber(1)
set name($core.String v) {
$_setString(0, v);
}
@$pb.TagNumber(1)
$core.bool hasName() => $_has(0);
@$pb.TagNumber(1)
void clearName() => clearField(1);
@$pb.TagNumber(2)
$core.List<OpDef_ArgDef> get inputArg => $_getList(1);
@$pb.TagNumber(3)
$core.List<OpDef_ArgDef> get outputArg => $_getList(2);
@$pb.TagNumber(4)
$core.List<OpDef_AttrDef> get attr => $_getList(3);
@$pb.TagNumber(5)
$core.String get summary => $_getSZ(4);
@$pb.TagNumber(5)
set summary($core.String v) {
$_setString(4, v);
}
@$pb.TagNumber(5)
$core.bool hasSummary() => $_has(4);
@$pb.TagNumber(5)
void clearSummary() => clearField(5);
@$pb.TagNumber(6)
$core.String get description => $_getSZ(5);
@$pb.TagNumber(6)
set description($core.String v) {
$_setString(5, v);
}
@$pb.TagNumber(6)
$core.bool hasDescription() => $_has(5);
@$pb.TagNumber(6)
void clearDescription() => clearField(6);
@$pb.TagNumber(8)
OpDeprecation get deprecation => $_getN(6);
@$pb.TagNumber(8)
set deprecation(OpDeprecation v) {
setField(8, v);
}
@$pb.TagNumber(8)
$core.bool hasDeprecation() => $_has(6);
@$pb.TagNumber(8)
void clearDeprecation() => clearField(8);
@$pb.TagNumber(8)
OpDeprecation ensureDeprecation() => $_ensure(6);
@$pb.TagNumber(16)
$core.bool get isAggregate => $_getBF(7);
@$pb.TagNumber(16)
set isAggregate($core.bool v) {
$_setBool(7, v);
}
@$pb.TagNumber(16)
$core.bool hasIsAggregate() => $_has(7);
@$pb.TagNumber(16)
void clearIsAggregate() => clearField(16);
@$pb.TagNumber(17)
$core.bool get isStateful => $_getBF(8);
@$pb.TagNumber(17)
set isStateful($core.bool v) {
$_setBool(8, v);
}
@$pb.TagNumber(17)
$core.bool hasIsStateful() => $_has(8);
@$pb.TagNumber(17)
void clearIsStateful() => clearField(17);
@$pb.TagNumber(18)
$core.bool get isCommutative => $_getBF(9);
@$pb.TagNumber(18)
set isCommutative($core.bool v) {
$_setBool(9, v);
}
@$pb.TagNumber(18)
$core.bool hasIsCommutative() => $_has(9);
@$pb.TagNumber(18)
void clearIsCommutative() => clearField(18);
@$pb.TagNumber(19)
$core.bool get allowsUninitializedInput => $_getBF(10);
@$pb.TagNumber(19)
set allowsUninitializedInput($core.bool v) {
$_setBool(10, v);
}
@$pb.TagNumber(19)
$core.bool hasAllowsUninitializedInput() => $_has(10);
@$pb.TagNumber(19)
void clearAllowsUninitializedInput() => clearField(19);
@$pb.TagNumber(20)
$core.List<$core.String> get controlOutput => $_getList(11);
@$pb.TagNumber(21)
$core.bool get isDistributedCommunication => $_getBF(12);
@$pb.TagNumber(21)
set isDistributedCommunication($core.bool v) {
$_setBool(12, v);
}
@$pb.TagNumber(21)
$core.bool hasIsDistributedCommunication() => $_has(12);
@$pb.TagNumber(21)
void clearIsDistributedCommunication() => clearField(21);
}
class OpDeprecation extends $pb.GeneratedMessage {
static final $pb.BuilderInfo _i = $pb.BuilderInfo(
const $core.bool.fromEnvironment('protobuf.omit_message_names')
? ''
: 'OpDeprecation',
package: const $pb.PackageName(
const $core.bool.fromEnvironment('protobuf.omit_message_names')
? ''
: 'tensorflow'),
createEmptyInstance: create)
..a<$core.int>(
1,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'version',
$pb.PbFieldType.O3)
..aOS(
2,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'explanation')
..hasRequiredFields = false;
OpDeprecation._() : super();
factory OpDeprecation({
$core.int? version,
$core.String? explanation,
}) {
final _result = create();
if (version != null) {
_result.version = version;
}
if (explanation != null) {
_result.explanation = explanation;
}
return _result;
}
factory OpDeprecation.fromBuffer($core.List<$core.int> i,
[$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) =>
create()..mergeFromBuffer(i, r);
factory OpDeprecation.fromJson($core.String i,
[$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) =>
create()..mergeFromJson(i, r);
@$core.Deprecated('Using this can add significant overhead to your binary. '
'Use [GeneratedMessageGenericExtensions.deepCopy] instead. '
'Will be removed in next major version')
OpDeprecation clone() => OpDeprecation()..mergeFromMessage(this);
@$core.Deprecated('Using this can add significant overhead to your binary. '
'Use [GeneratedMessageGenericExtensions.rebuild] instead. '
'Will be removed in next major version')
OpDeprecation copyWith(void Function(OpDeprecation) updates) =>
super.copyWith((message) => updates(message as OpDeprecation))
as OpDeprecation; // ignore: deprecated_member_use
$pb.BuilderInfo get info_ => _i;
@$core.pragma('dart2js:noInline')
static OpDeprecation create() => OpDeprecation._();
OpDeprecation createEmptyInstance() => create();
static $pb.PbList<OpDeprecation> createRepeated() =>
$pb.PbList<OpDeprecation>();
@$core.pragma('dart2js:noInline')
static OpDeprecation getDefault() => _defaultInstance ??=
$pb.GeneratedMessage.$_defaultFor<OpDeprecation>(create);
static OpDeprecation? _defaultInstance;
@$pb.TagNumber(1)
$core.int get version => $_getIZ(0);
@$pb.TagNumber(1)
set version($core.int v) {
$_setSignedInt32(0, v);
}
@$pb.TagNumber(1)
$core.bool hasVersion() => $_has(0);
@$pb.TagNumber(1)
void clearVersion() => clearField(1);
@$pb.TagNumber(2)
$core.String get explanation => $_getSZ(1);
@$pb.TagNumber(2)
set explanation($core.String v) {
$_setString(1, v);
}
@$pb.TagNumber(2)
$core.bool hasExplanation() => $_has(1);
@$pb.TagNumber(2)
void clearExplanation() => clearField(2);
}
class OpList extends $pb.GeneratedMessage {
static final $pb.BuilderInfo _i = $pb.BuilderInfo(
const $core.bool.fromEnvironment('protobuf.omit_message_names')
? ''
: 'OpList',
package: const $pb.PackageName(
const $core.bool.fromEnvironment('protobuf.omit_message_names')
? ''
: 'tensorflow'),
createEmptyInstance: create)
..pc<OpDef>(
1,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'op',
$pb.PbFieldType.PM,
subBuilder: OpDef.create)
..hasRequiredFields = false;
OpList._() : super();
factory OpList({
$core.Iterable<OpDef>? op,
}) {
final _result = create();
if (op != null) {
_result.op.addAll(op);
}
return _result;
}
factory OpList.fromBuffer($core.List<$core.int> i,
[$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) =>
create()..mergeFromBuffer(i, r);
factory OpList.fromJson($core.String i,
[$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) =>
create()..mergeFromJson(i, r);
@$core.Deprecated('Using this can add significant overhead to your binary. '
'Use [GeneratedMessageGenericExtensions.deepCopy] instead. '
'Will be removed in next major version')
OpList clone() => OpList()..mergeFromMessage(this);
@$core.Deprecated('Using this can add significant overhead to your binary. '
'Use [GeneratedMessageGenericExtensions.rebuild] instead. '
'Will be removed in next major version')
OpList copyWith(void Function(OpList) updates) =>
super.copyWith((message) => updates(message as OpList))
as OpList; // ignore: deprecated_member_use
$pb.BuilderInfo get info_ => _i;
@$core.pragma('dart2js:noInline')
static OpList create() => OpList._();
OpList createEmptyInstance() => create();
static $pb.PbList<OpList> createRepeated() => $pb.PbList<OpList>();
@$core.pragma('dart2js:noInline')
static OpList getDefault() =>
_defaultInstance ??= $pb.GeneratedMessage.$_defaultFor<OpList>(create);
static OpList? _defaultInstance;
@$pb.TagNumber(1)
$core.List<OpDef> get op => $_getList(0);
}
| codelabs/tfserving-flutter/codelab2/starter/lib/proto/generated/tensorflow/core/framework/op_def.pb.dart/0 | {
"file_path": "codelabs/tfserving-flutter/codelab2/starter/lib/proto/generated/tensorflow/core/framework/op_def.pb.dart",
"repo_id": "codelabs",
"token_count": 11799
} | 58 |
///
// Generated code. Do not modify.
// source: tensorflow/core/framework/variable.proto
//
// @dart = 2.12
// ignore_for_file: annotate_overrides,camel_case_types,unnecessary_const,non_constant_identifier_names,library_prefixes,unused_import,unused_shown_name,return_of_invalid_type,unnecessary_this,prefer_final_fields
// ignore_for_file: UNDEFINED_SHOWN_NAME
import 'dart:core' as $core;
import 'package:protobuf/protobuf.dart' as $pb;
class VariableSynchronization extends $pb.ProtobufEnum {
static const VariableSynchronization VARIABLE_SYNCHRONIZATION_AUTO =
VariableSynchronization._(
0,
const $core.bool.fromEnvironment('protobuf.omit_enum_names')
? ''
: 'VARIABLE_SYNCHRONIZATION_AUTO');
static const VariableSynchronization VARIABLE_SYNCHRONIZATION_NONE =
VariableSynchronization._(
1,
const $core.bool.fromEnvironment('protobuf.omit_enum_names')
? ''
: 'VARIABLE_SYNCHRONIZATION_NONE');
static const VariableSynchronization VARIABLE_SYNCHRONIZATION_ON_WRITE =
VariableSynchronization._(
2,
const $core.bool.fromEnvironment('protobuf.omit_enum_names')
? ''
: 'VARIABLE_SYNCHRONIZATION_ON_WRITE');
static const VariableSynchronization VARIABLE_SYNCHRONIZATION_ON_READ =
VariableSynchronization._(
3,
const $core.bool.fromEnvironment('protobuf.omit_enum_names')
? ''
: 'VARIABLE_SYNCHRONIZATION_ON_READ');
static const $core.List<VariableSynchronization> values =
<VariableSynchronization>[
VARIABLE_SYNCHRONIZATION_AUTO,
VARIABLE_SYNCHRONIZATION_NONE,
VARIABLE_SYNCHRONIZATION_ON_WRITE,
VARIABLE_SYNCHRONIZATION_ON_READ,
];
static final $core.Map<$core.int, VariableSynchronization> _byValue =
$pb.ProtobufEnum.initByValue(values);
static VariableSynchronization? valueOf($core.int value) => _byValue[value];
const VariableSynchronization._($core.int v, $core.String n) : super(v, n);
}
class VariableAggregation extends $pb.ProtobufEnum {
static const VariableAggregation VARIABLE_AGGREGATION_NONE =
VariableAggregation._(
0,
const $core.bool.fromEnvironment('protobuf.omit_enum_names')
? ''
: 'VARIABLE_AGGREGATION_NONE');
static const VariableAggregation VARIABLE_AGGREGATION_SUM =
VariableAggregation._(
1,
const $core.bool.fromEnvironment('protobuf.omit_enum_names')
? ''
: 'VARIABLE_AGGREGATION_SUM');
static const VariableAggregation VARIABLE_AGGREGATION_MEAN =
VariableAggregation._(
2,
const $core.bool.fromEnvironment('protobuf.omit_enum_names')
? ''
: 'VARIABLE_AGGREGATION_MEAN');
static const VariableAggregation VARIABLE_AGGREGATION_ONLY_FIRST_REPLICA =
VariableAggregation._(
3,
const $core.bool.fromEnvironment('protobuf.omit_enum_names')
? ''
: 'VARIABLE_AGGREGATION_ONLY_FIRST_REPLICA');
static const $core.List<VariableAggregation> values = <VariableAggregation>[
VARIABLE_AGGREGATION_NONE,
VARIABLE_AGGREGATION_SUM,
VARIABLE_AGGREGATION_MEAN,
VARIABLE_AGGREGATION_ONLY_FIRST_REPLICA,
];
static final $core.Map<$core.int, VariableAggregation> _byValue =
$pb.ProtobufEnum.initByValue(values);
static VariableAggregation? valueOf($core.int value) => _byValue[value];
const VariableAggregation._($core.int v, $core.String n) : super(v, n);
}
| codelabs/tfserving-flutter/codelab2/starter/lib/proto/generated/tensorflow/core/framework/variable.pbenum.dart/0 | {
"file_path": "codelabs/tfserving-flutter/codelab2/starter/lib/proto/generated/tensorflow/core/framework/variable.pbenum.dart",
"repo_id": "codelabs",
"token_count": 1583
} | 59 |
///
// Generated code. Do not modify.
// source: tensorflow_serving/apis/model.proto
//
// @dart = 2.12
// ignore_for_file: annotate_overrides,camel_case_types,unnecessary_const,non_constant_identifier_names,library_prefixes,unused_import,unused_shown_name,return_of_invalid_type,unnecessary_this,prefer_final_fields
import 'dart:core' as $core;
import 'package:protobuf/protobuf.dart' as $pb;
import '../../google/protobuf/wrappers.pb.dart' as $0;
enum ModelSpec_VersionChoice { version, versionLabel, notSet }
class ModelSpec extends $pb.GeneratedMessage {
static const $core.Map<$core.int, ModelSpec_VersionChoice>
_ModelSpec_VersionChoiceByTag = {
2: ModelSpec_VersionChoice.version,
4: ModelSpec_VersionChoice.versionLabel,
0: ModelSpec_VersionChoice.notSet
};
static final $pb.BuilderInfo _i = $pb.BuilderInfo(
const $core.bool.fromEnvironment('protobuf.omit_message_names')
? ''
: 'ModelSpec',
package: const $pb.PackageName(
const $core.bool.fromEnvironment('protobuf.omit_message_names')
? ''
: 'tensorflow.serving'),
createEmptyInstance: create)
..oo(0, [2, 4])
..aOS(
1,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'name')
..aOM<$0.Int64Value>(
2,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'version',
subBuilder: $0.Int64Value.create)
..aOS(
3,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'signatureName')
..aOS(
4,
const $core.bool.fromEnvironment('protobuf.omit_field_names')
? ''
: 'versionLabel')
..hasRequiredFields = false;
ModelSpec._() : super();
factory ModelSpec({
$core.String? name,
$0.Int64Value? version,
$core.String? signatureName,
$core.String? versionLabel,
}) {
final _result = create();
if (name != null) {
_result.name = name;
}
if (version != null) {
_result.version = version;
}
if (signatureName != null) {
_result.signatureName = signatureName;
}
if (versionLabel != null) {
_result.versionLabel = versionLabel;
}
return _result;
}
factory ModelSpec.fromBuffer($core.List<$core.int> i,
[$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) =>
create()..mergeFromBuffer(i, r);
factory ModelSpec.fromJson($core.String i,
[$pb.ExtensionRegistry r = $pb.ExtensionRegistry.EMPTY]) =>
create()..mergeFromJson(i, r);
@$core.Deprecated('Using this can add significant overhead to your binary. '
'Use [GeneratedMessageGenericExtensions.deepCopy] instead. '
'Will be removed in next major version')
ModelSpec clone() => ModelSpec()..mergeFromMessage(this);
@$core.Deprecated('Using this can add significant overhead to your binary. '
'Use [GeneratedMessageGenericExtensions.rebuild] instead. '
'Will be removed in next major version')
ModelSpec copyWith(void Function(ModelSpec) updates) =>
super.copyWith((message) => updates(message as ModelSpec))
as ModelSpec; // ignore: deprecated_member_use
$pb.BuilderInfo get info_ => _i;
@$core.pragma('dart2js:noInline')
static ModelSpec create() => ModelSpec._();
ModelSpec createEmptyInstance() => create();
static $pb.PbList<ModelSpec> createRepeated() => $pb.PbList<ModelSpec>();
@$core.pragma('dart2js:noInline')
static ModelSpec getDefault() =>
_defaultInstance ??= $pb.GeneratedMessage.$_defaultFor<ModelSpec>(create);
static ModelSpec? _defaultInstance;
ModelSpec_VersionChoice whichVersionChoice() =>
_ModelSpec_VersionChoiceByTag[$_whichOneof(0)]!;
void clearVersionChoice() => clearField($_whichOneof(0));
@$pb.TagNumber(1)
$core.String get name => $_getSZ(0);
@$pb.TagNumber(1)
set name($core.String v) {
$_setString(0, v);
}
@$pb.TagNumber(1)
$core.bool hasName() => $_has(0);
@$pb.TagNumber(1)
void clearName() => clearField(1);
@$pb.TagNumber(2)
$0.Int64Value get version => $_getN(1);
@$pb.TagNumber(2)
set version($0.Int64Value v) {
setField(2, v);
}
@$pb.TagNumber(2)
$core.bool hasVersion() => $_has(1);
@$pb.TagNumber(2)
void clearVersion() => clearField(2);
@$pb.TagNumber(2)
$0.Int64Value ensureVersion() => $_ensure(1);
@$pb.TagNumber(3)
$core.String get signatureName => $_getSZ(2);
@$pb.TagNumber(3)
set signatureName($core.String v) {
$_setString(2, v);
}
@$pb.TagNumber(3)
$core.bool hasSignatureName() => $_has(2);
@$pb.TagNumber(3)
void clearSignatureName() => clearField(3);
@$pb.TagNumber(4)
$core.String get versionLabel => $_getSZ(3);
@$pb.TagNumber(4)
set versionLabel($core.String v) {
$_setString(3, v);
}
@$pb.TagNumber(4)
$core.bool hasVersionLabel() => $_has(3);
@$pb.TagNumber(4)
void clearVersionLabel() => clearField(4);
}
| codelabs/tfserving-flutter/codelab2/starter/lib/proto/generated/tensorflow_serving/apis/model.pb.dart/0 | {
"file_path": "codelabs/tfserving-flutter/codelab2/starter/lib/proto/generated/tensorflow_serving/apis/model.pb.dart",
"repo_id": "codelabs",
"token_count": 2051
} | 60 |
// Protocol messages for describing features for machine learning model
// training or inference.
//
// There are three base Feature types:
// - bytes
// - float
// - int64
//
// A Feature contains Lists which may hold zero or more values. These
// lists are the base values BytesList, FloatList, Int64List.
//
// Features are organized into categories by name. The Features message
// contains the mapping from name to Feature.
//
// Example Features for a movie recommendation application:
// feature {
// key: "age"
// value { float_list {
// value: 29.0
// }}
// }
// feature {
// key: "movie"
// value { bytes_list {
// value: "The Shawshank Redemption"
// value: "Fight Club"
// }}
// }
// feature {
// key: "movie_ratings"
// value { float_list {
// value: 9.0
// value: 9.7
// }}
// }
// feature {
// key: "suggestion"
// value { bytes_list {
// value: "Inception"
// }}
// }
// feature {
// key: "suggestion_purchased"
// value { int64_list {
// value: 1
// }}
// }
// feature {
// key: "purchase_price"
// value { float_list {
// value: 9.99
// }}
// }
//
syntax = "proto3";
package tensorflow;
option cc_enable_arenas = true;
option java_outer_classname = "FeatureProtos";
option java_multiple_files = true;
option java_package = "org.tensorflow.example";
option go_package = "github.com/tensorflow/tensorflow/tensorflow/go/core/example/example_protos_go_proto";
// LINT.IfChange
// Containers to hold repeated fundamental values.
message BytesList {
repeated bytes value = 1;
}
message FloatList {
repeated float value = 1 [packed = true];
}
message Int64List {
repeated int64 value = 1 [packed = true];
}
// Containers for non-sequential data.
message Feature {
// Each feature can be exactly one kind.
oneof kind {
BytesList bytes_list = 1;
FloatList float_list = 2;
Int64List int64_list = 3;
}
}
message Features {
// Map from feature name to feature.
map<string, Feature> feature = 1;
}
// Containers for sequential data.
//
// A FeatureList contains lists of Features. These may hold zero or more
// Feature values.
//
// FeatureLists are organized into categories by name. The FeatureLists message
// contains the mapping from name to FeatureList.
//
message FeatureList {
repeated Feature feature = 1;
}
message FeatureLists {
// Map from feature name to feature list.
map<string, FeatureList> feature_list = 1;
}
// LINT.ThenChange(
// https://www.tensorflow.org/code/tensorflow/python/training/training.py)
| codelabs/tfserving-flutter/codelab2/starter/lib/proto/tensorflow/core/example/feature.proto/0 | {
"file_path": "codelabs/tfserving-flutter/codelab2/starter/lib/proto/tensorflow/core/example/feature.proto",
"repo_id": "codelabs",
"token_count": 931
} | 61 |
syntax = "proto3";
package tensorflow;
import "tensorflow/core/framework/tensor.proto";
import "tensorflow/core/framework/tensor_shape.proto";
import "tensorflow/core/framework/types.proto";
option go_package = "github.com/tensorflow/tensorflow/tensorflow/go/core/protobuf/for_core_protos_go_proto";
// `StructuredValue` represents a dynamically typed value representing various
// data structures that are inspired by Python data structures typically used in
// TensorFlow functions as inputs and outputs.
//
// For example when saving a Layer there may be a `training` argument. If the
// user passes a boolean True/False, that switches between two concrete
// TensorFlow functions. In order to switch between them in the same way after
// loading the SavedModel, we need to represent "True" and "False".
//
// A more advanced example might be a function which takes a list of
// dictionaries mapping from strings to Tensors. In order to map from
// user-specified arguments `[{"a": tf.constant(1.)}, {"q": tf.constant(3.)}]`
// after load to the right saved TensorFlow function, we need to represent the
// nested structure and the strings, recording that we have a trace for anything
// matching `[{"a": tf.TensorSpec(None, tf.float32)}, {"q": tf.TensorSpec([],
// tf.float64)}]` as an example.
//
// Likewise functions may return nested structures of Tensors, for example
// returning a dictionary mapping from strings to Tensors. In order for the
// loaded function to return the same structure we need to serialize it.
//
// This is an ergonomic aid for working with loaded SavedModels, not a promise
// to serialize all possible function signatures. For example we do not expect
// to pickle generic Python objects, and ideally we'd stay language-agnostic.
message StructuredValue {
// The kind of value.
oneof kind {
// Represents None.
NoneValue none_value = 1;
// Represents a double-precision floating-point value (a Python `float`).
double float64_value = 11;
// Represents a signed integer value, limited to 64 bits.
// Larger values from Python's arbitrary-precision integers are unsupported.
sint64 int64_value = 12;
// Represents a string of Unicode characters stored in a Python `str`.
// In Python 3, this is exactly what type `str` is.
// In Python 2, this is the UTF-8 encoding of the characters.
// For strings with ASCII characters only (as often used in TensorFlow code)
// there is effectively no difference between the language versions.
// The obsolescent `unicode` type of Python 2 is not supported here.
string string_value = 13;
// Represents a boolean value.
bool bool_value = 14;
// Represents a TensorShape.
tensorflow.TensorShapeProto tensor_shape_value = 31;
// Represents an enum value for dtype.
tensorflow.DataType tensor_dtype_value = 32;
// Represents a value for tf.TensorSpec.
TensorSpecProto tensor_spec_value = 33;
// Represents a value for tf.TypeSpec.
TypeSpecProto type_spec_value = 34;
// Represents a value for tf.BoundedTensorSpec.
BoundedTensorSpecProto bounded_tensor_spec_value = 35;
// Represents a list of `Value`.
ListValue list_value = 51;
// Represents a tuple of `Value`.
TupleValue tuple_value = 52;
// Represents a dict `Value`.
DictValue dict_value = 53;
// Represents Python's namedtuple.
NamedTupleValue named_tuple_value = 54;
}
}
// Represents None.
message NoneValue {}
// Represents a Python list.
message ListValue {
repeated StructuredValue values = 1;
}
// Represents a Python tuple.
message TupleValue {
repeated StructuredValue values = 1;
}
// Represents a Python dict keyed by `str`.
// The comment on Unicode from Value.string_value applies analogously.
message DictValue {
map<string, StructuredValue> fields = 1;
}
// Represents a (key, value) pair.
message PairValue {
string key = 1;
StructuredValue value = 2;
}
// Represents Python's namedtuple.
message NamedTupleValue {
string name = 1;
repeated PairValue values = 2;
}
// A protobuf to represent tf.TensorSpec.
message TensorSpecProto {
string name = 1;
tensorflow.TensorShapeProto shape = 2;
tensorflow.DataType dtype = 3;
}
// A protobuf to represent tf.BoundedTensorSpec.
message BoundedTensorSpecProto {
string name = 1;
tensorflow.TensorShapeProto shape = 2;
tensorflow.DataType dtype = 3;
tensorflow.TensorProto minimum = 4;
tensorflow.TensorProto maximum = 5;
}
// Represents a tf.TypeSpec
message TypeSpecProto {
enum TypeSpecClass {
UNKNOWN = 0;
SPARSE_TENSOR_SPEC = 1; // tf.SparseTensorSpec
INDEXED_SLICES_SPEC = 2; // tf.IndexedSlicesSpec
RAGGED_TENSOR_SPEC = 3; // tf.RaggedTensorSpec
TENSOR_ARRAY_SPEC = 4; // tf.TensorArraySpec
DATA_DATASET_SPEC = 5; // tf.data.DatasetSpec
DATA_ITERATOR_SPEC = 6; // IteratorSpec from data/ops/iterator_ops.py
OPTIONAL_SPEC = 7; // tf.OptionalSpec
PER_REPLICA_SPEC = 8; // PerReplicaSpec from distribute/values.py
VARIABLE_SPEC = 9; // tf.VariableSpec
ROW_PARTITION_SPEC = 10; // RowPartitionSpec from ragged/row_partition.py
reserved 11;
REGISTERED_TYPE_SPEC = 12; // The type registered as type_spec_class_name.
EXTENSION_TYPE_SPEC = 13; // Subclasses of tf.ExtensionType
}
TypeSpecClass type_spec_class = 1;
// The value returned by TypeSpec._serialize().
StructuredValue type_state = 2;
// The name of the TypeSpec class.
// * If type_spec_class == REGISTERED_TYPE_SPEC, the TypeSpec class is
// the one registered under this name. For types registered outside
// core TensorFlow by an add-on library, that library must be loaded
// before this value can be deserialized by nested_structure_coder.
// * If type_spec_class specifies a particular TypeSpec class, this field is
// redundant with the type_spec_class enum, and is only used for error
// reporting in older binaries that do not know the tupe_spec_class enum.
string type_spec_class_name = 3;
// The number of flat tensor components required by this TypeSpec.
int32 num_flat_components = 4;
}
| codelabs/tfserving-flutter/codelab2/starter/lib/proto/tensorflow/core/protobuf/struct.proto/0 | {
"file_path": "codelabs/tfserving-flutter/codelab2/starter/lib/proto/tensorflow/core/protobuf/struct.proto",
"repo_id": "codelabs",
"token_count": 1983
} | 62 |
// Copyright 2023 The Flutter team. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'dart:convert';
import 'dart:io';
import 'package:args/args.dart';
import 'package:claat_export_images/claat_export_images.dart';
import 'package:claat_export_images/client_secret.dart';
import 'package:googleapis/docs/v1.dart' as google_docs;
import 'package:googleapis_auth/auth_io.dart';
import 'package:http/http.dart' as http;
import 'package:image/image.dart';
import 'package:path/path.dart' as path;
void main(List<String> arguments) async {
final argParser = ArgParser();
argParser.addFlag(
'help',
abbr: 'h',
negatable: false,
help: 'Display usage',
);
argParser.addOption(
'client-secrets',
abbr: 's',
mandatory: true,
help: 'The path to the client_secrets.json file',
);
argParser.addOption(
'doc-id',
abbr: 'd',
mandatory: true,
help: 'The document ID to export the images of',
);
argParser.parse(arguments);
final args = argParser.parse(arguments);
if (args['help']) {
print(argParser.usage);
exit(-1);
}
final clientSecret = ClientSecret.fromJson(
jsonDecode(
await File(args['client-secrets']).readAsString(),
),
);
final gDocID = args['doc-id'];
final client = await obtainCredentials(
clientID: clientSecret.installed.clientId,
clientSecret: clientSecret.installed.clientSecret,
);
final apiClient = google_docs.DocsApi(client);
final document = await apiClient.documents
.get(gDocID, suggestionsViewMode: 'PREVIEW_WITHOUT_SUGGESTIONS');
final uris = claatImageUris(document);
Directory('img').createSync();
int imageCount = 0;
for (final uri in uris) {
final response = await http.get(uri);
if (PngDecoder().isValidFile(response.bodyBytes)) {
File(path.join('img', '${uri.pathSegments.last}.png'))
.writeAsBytesSync(response.bodyBytes);
imageCount += 1;
} else if (JpegDecoder().isValidFile(response.bodyBytes)) {
File(path.join('img', '${uri.pathSegments.last}.jpg'))
.writeAsBytesSync(response.bodyBytes);
imageCount += 1;
} else if (GifDecoder().isValidFile(response.bodyBytes)) {
File(path.join('img', '${uri.pathSegments.last}.gif'))
.writeAsBytesSync(response.bodyBytes);
imageCount += 1;
} else if (WebPDecoder().isValidFile(response.bodyBytes)) {
File(path.join('img', '${uri.pathSegments.last}.webp'))
.writeAsBytesSync(response.bodyBytes);
imageCount += 1;
} else {
print('Unknown image format: $uri');
}
}
print('Wrote $imageCount images to img/');
}
Future<AuthClient> obtainCredentials(
{required String clientID, required String clientSecret}) async =>
await clientViaUserConsent(
ClientId(clientID, clientSecret),
[google_docs.DocsApi.driveReadonlyScope],
_prompt,
);
void _prompt(String url) {
print('Please go to the following URL and grant access:');
print(' => $url');
print('');
}
| codelabs/tooling/claat_export_images/bin/claat_export_images.dart/0 | {
"file_path": "codelabs/tooling/claat_export_images/bin/claat_export_images.dart",
"repo_id": "codelabs",
"token_count": 1170
} | 63 |
include: ../../analysis_options.yaml
| codelabs/webview_flutter/step_03/analysis_options.yaml/0 | {
"file_path": "codelabs/webview_flutter/step_03/analysis_options.yaml",
"repo_id": "codelabs",
"token_count": 12
} | 64 |
// Copyright 2022 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';
class WebViewStack extends StatefulWidget {
const WebViewStack({required this.controller, super.key});
final WebViewController controller;
@override
State<WebViewStack> createState() => _WebViewStackState();
}
class _WebViewStackState extends State<WebViewStack> {
var loadingPercentage = 0;
@override
void initState() {
super.initState();
widget.controller.setNavigationDelegate(
NavigationDelegate(
onPageStarted: (url) {
setState(() {
loadingPercentage = 0;
});
},
onProgress: (progress) {
setState(() {
loadingPercentage = progress;
});
},
onPageFinished: (url) {
setState(() {
loadingPercentage = 100;
});
},
),
);
}
@override
Widget build(BuildContext context) {
return Stack(
children: [
WebViewWidget(
controller: widget.controller,
),
if (loadingPercentage < 100)
LinearProgressIndicator(
value: loadingPercentage / 100.0,
),
],
);
}
}
| codelabs/webview_flutter/step_06/lib/src/web_view_stack.dart/0 | {
"file_path": "codelabs/webview_flutter/step_06/lib/src/web_view_stack.dart",
"repo_id": "codelabs",
"token_count": 578
} | 65 |
#import "GeneratedPluginRegistrant.h"
| codelabs/webview_flutter/step_08/ios/Runner/Runner-Bridging-Header.h/0 | {
"file_path": "codelabs/webview_flutter/step_08/ios/Runner/Runner-Bridging-Header.h",
"repo_id": "codelabs",
"token_count": 13
} | 66 |
org.gradle.jvmargs=-Xmx4G
android.useAndroidX=true
android.enableJetifier=true
| codelabs/webview_flutter/step_11/android/gradle.properties/0 | {
"file_path": "codelabs/webview_flutter/step_11/android/gradle.properties",
"repo_id": "codelabs",
"token_count": 30
} | 67 |
* @flutter/devtools-reviewers
# Inspector Files
inspector/ @CoderDake
# Network Files
network/ @kenzieschmoll @bkonyi
# Performance Files
performance/ @kenzieschmoll
# CPU Profiler files
profiler/ @kenzieschmoll
# Memory files
memory/ @bkonyi @polina-c
# Memory leak tracking files
memory/panes/leaks @CoderDake @polina-c
# Debugger files
debugger/ @elliette
# VM Developer files
vm_developer/ @bkonyi
# Tooling files
/tool/ @CoderDake
packages/devtools_extensions/ @kenzieschmoll
# Version bump files.
# No owners to prevent version update spam
packages/devtools_app/lib/devtools.dart
packages/devtools_app/pubspec.yaml
packages/devtools_test/pubspec.yaml
| devtools/CODEOWNERS/0 | {
"file_path": "devtools/CODEOWNERS",
"repo_id": "devtools",
"token_count": 342
} | 68 |
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