| // 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'; |
| |
| import 'shared/data.dart'; |
| |
| void main() => runApp(App()); |
| |
| /// The main app. |
| class App extends StatelessWidget { |
| /// Creates an [App]. |
| App({Key? key}) : super(key: key); |
| |
| /// The title of the app. |
| static const String title = 'GoRouter Example: Sub-routes'; |
| |
| @override |
| Widget build(BuildContext context) => MaterialApp.router( |
| routeInformationProvider: _router.routeInformationProvider, |
| routeInformationParser: _router.routeInformationParser, |
| routerDelegate: _router.routerDelegate, |
| title: title, |
| ); |
| |
| final GoRouter _router = GoRouter( |
| routes: <GoRoute>[ |
| GoRoute( |
| path: '/', |
| builder: (BuildContext context, GoRouterState state) => |
| HomeScreen(families: Families.data), |
| routes: <GoRoute>[ |
| GoRoute( |
| path: 'family/:fid', |
| builder: (BuildContext context, GoRouterState state) => |
| FamilyScreen( |
| family: Families.family(state.params['fid']!), |
| ), |
| routes: <GoRoute>[ |
| GoRoute( |
| path: 'person/:pid', |
| builder: (BuildContext context, GoRouterState state) { |
| final Family family = Families.family(state.params['fid']!); |
| final Person person = family.person(state.params['pid']!); |
| |
| return PersonScreen(family: family, person: person); |
| }, |
| ), |
| ], |
| ), |
| ], |
| ), |
| ], |
| ); |
| } |
| |
| /// The home screen that shows a list of families. |
| class HomeScreen extends StatelessWidget { |
| /// Creates a [HomeScreen]. |
| const HomeScreen({required this.families, Key? key}) : super(key: key); |
| |
| /// The list of families. |
| final List<Family> families; |
| |
| @override |
| Widget build(BuildContext context) => Scaffold( |
| appBar: AppBar(title: const Text(App.title)), |
| body: ListView( |
| children: <Widget>[ |
| for (final Family f in families) |
| ListTile( |
| title: Text(f.name), |
| onTap: () => context.go('/family/${f.id}'), |
| ) |
| ], |
| ), |
| ); |
| } |
| |
| /// The screen that shows a list of persons in a family. |
| class FamilyScreen extends StatelessWidget { |
| /// Creates a [FamilyScreen]. |
| const FamilyScreen({required this.family, Key? key}) : super(key: key); |
| |
| /// The family to display. |
| final Family family; |
| |
| @override |
| Widget build(BuildContext context) => Scaffold( |
| appBar: AppBar(title: Text(family.name)), |
| body: ListView( |
| children: <Widget>[ |
| for (final Person p in family.people) |
| ListTile( |
| title: Text(p.name), |
| onTap: () => context.go('/family/${family.id}/person/${p.id}'), |
| ), |
| ], |
| ), |
| ); |
| } |
| |
| /// The person screen. |
| class PersonScreen extends StatelessWidget { |
| /// Creates a [PersonScreen]. |
| const PersonScreen({required this.family, required this.person, Key? key}) |
| : super(key: key); |
| |
| /// The family this person belong to. |
| final Family family; |
| |
| /// The person to be displayed. |
| final Person person; |
| |
| @override |
| Widget build(BuildContext context) => Scaffold( |
| appBar: AppBar(title: Text(person.name)), |
| body: Text('${person.name} ${family.name} is ${person.age} years old'), |
| ); |
| } |