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home: const HomePage(),
// The [routes] property defines the available named routes
// and the widgets to build when navigating to those routes.
routes: {
detailsPageRouteName: (context) => const DetailsPage(),
},
);
}
}<code_end>
The following sample generates a list of persons using
mockPersons(). Tapping a person pushes the person’s detail page
to the Navigator using pushNamed().
<code_start> ListView.builder(
itemCount: mockPersons.length,
itemBuilder: (context, index) {
final person = mockPersons.elementAt(index);
final age = '${person.age} years old';
return ListTile(
title: Text(person.name),
subtitle: Text(age),
trailing: const Icon(
Icons.arrow_forward_ios,
),
onTap: () {
// When a [ListTile] that represents a person is
// tapped, push the detailsPageRouteName route
// to the Navigator and pass the person's instance
// to the route.
Navigator.of(context).pushNamed(
detailsPageRouteName,
arguments: person,
);
},
);
},
),<code_end>
Define the DetailsPage widget that displays the details of
each person. In Flutter, you can pass arguments into the
widget when navigating to the new route.
Extract the arguments using ModalRoute.of():
<code_start>class DetailsPage extends StatelessWidget {
const DetailsPage({super.key});
@override
Widget build(BuildContext context) {
// Read the person instance from the arguments.
final Person person = ModalRoute.of(
context,
)?.settings.arguments as Person;
// Extract the age.
final age = '${person.age} years old';
return Scaffold(
// Display name and age.
body: Column(children: [Text(person.name), Text(age)]),
);
}
}<code_end>
To create more advanced navigation and routing requirements,
use a routing package such as go_router.To learn more, check out Navigation and routing.<topic_end>
<topic_start>
Manually pop back
In SwiftUI, you use the dismiss environment value to pop-back to
the previous screen.In Flutter, use the pop() function of the Navigator class:
<code_start>TextButton(
onPressed: () {
// This code allows the
// view to pop back to its presenter.
Navigator.of(context).pop();
},
child: const Text('Pop back'),
),<code_end>
<topic_end>
<topic_start>
Navigating to another app
In SwiftUI, you use the openURL environment variable to open a
URL to another application.In Flutter, use the url_launcher plugin.
<code_start> CupertinoButton(
onPressed: () async {
await launchUrl(
Uri.parse('https://google.com'),
);
},
child: const Text(
'Open website',
),
),<code_end>
<topic_end>
<topic_start>
Themes, styles, and media
You can style Flutter apps with little effort.
Styling includes switching between light and dark themes,
changing the design of your text and UI components,
and more. This section covers how to style your apps.<topic_end>
<topic_start>
Using dark mode
In SwiftUI, you call the preferredColorScheme()
function on a View to use dark mode.In Flutter, you can control light and dark mode at the app-level.
To control the brightness mode, use the theme property
of the App class:
<code_start> CupertinoApp(
theme: CupertinoThemeData(