| // Copyright 2013 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'; |
| |
| void main() => runApp(App()); |
| |
| /// The main app. |
| class App extends StatelessWidget { |
| /// Creates an [App]. |
| App({super.key}); |
| |
| /// The title of the app. |
| static const String title = 'GoRouter Example: Push'; |
| |
| @override |
| Widget build(BuildContext context) => MaterialApp.router( |
| routerConfig: _router, |
| title: title, |
| ); |
| |
| late final GoRouter _router = GoRouter( |
| routes: <GoRoute>[ |
| GoRoute( |
| path: '/', |
| builder: (BuildContext context, GoRouterState state) => |
| const Page1ScreenWithPush(), |
| ), |
| GoRoute( |
| path: '/page2', |
| builder: (BuildContext context, GoRouterState state) => |
| Page2ScreenWithPush( |
| int.parse(state.queryParameters['push-count']!), |
| ), |
| ), |
| ], |
| ); |
| } |
| |
| /// The screen of the first page. |
| class Page1ScreenWithPush extends StatelessWidget { |
| /// Creates a [Page1ScreenWithPush]. |
| const Page1ScreenWithPush({super.key}); |
| |
| @override |
| Widget build(BuildContext context) => Scaffold( |
| appBar: AppBar(title: const Text('${App.title}: page 1')), |
| body: Center( |
| child: Column( |
| mainAxisAlignment: MainAxisAlignment.center, |
| children: <Widget>[ |
| ElevatedButton( |
| onPressed: () => context.push('/page2?push-count=1'), |
| child: const Text('Push page 2'), |
| ), |
| ], |
| ), |
| ), |
| ); |
| } |
| |
| /// The screen of the second page. |
| class Page2ScreenWithPush extends StatelessWidget { |
| /// Creates a [Page2ScreenWithPush]. |
| const Page2ScreenWithPush(this.pushCount, {super.key}); |
| |
| /// The push count. |
| final int pushCount; |
| |
| @override |
| Widget build(BuildContext context) => Scaffold( |
| appBar: AppBar( |
| title: Text('${App.title}: page 2 w/ push count $pushCount'), |
| ), |
| body: Center( |
| child: Column( |
| mainAxisAlignment: MainAxisAlignment.center, |
| children: <Widget>[ |
| Padding( |
| padding: const EdgeInsets.all(8), |
| child: ElevatedButton( |
| onPressed: () => context.go('/'), |
| child: const Text('Go to home page'), |
| ), |
| ), |
| Padding( |
| padding: const EdgeInsets.all(8), |
| child: ElevatedButton( |
| onPressed: () => context.push( |
| '/page2?push-count=${pushCount + 1}', |
| ), |
| child: const Text('Push page 2 (again)'), |
| ), |
| ), |
| ], |
| ), |
| ), |
| ); |
| } |