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call your navigation routes using their names.
name each route in the class passed to the runApp() function.
the following example uses app:
<code_start>
// defines the route name as a constant
// so that it's reusable.
const detailsPageRouteName = '/details';
class app extends StatelessWidget {
const app({
super.key,
});
@override
widget build(BuildContext context) {
return CupertinoApp(
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.