| // Copyright 2014 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. |
| |
| // Template: dev/snippets/config/templates/stateless_widget_restoration_cupertino.tmpl |
| // |
| // Comment lines marked with "▼▼▼" and "▲▲▲" are used for authoring |
| // of samples, and may be ignored if you are just exploring the sample. |
| |
| // Flutter code sample for showCupertinoModalPopup |
| // |
| //*************************************************************************** |
| //* ▼▼▼▼▼▼▼▼ description ▼▼▼▼▼▼▼▼ (do not modify or remove section marker) |
| |
| // This sample demonstrates how to create a restorable Cupertino modal route. |
| // This is accomplished by enabling state restoration by specifying |
| // [CupertinoApp.restorationScopeId] and using [Navigator.restorablePush] to |
| // push [CupertinoModalPopupRoute] when the [CupertinoButton] is tapped. |
| // |
| // {@macro flutter.widgets.RestorationManager} |
| |
| //* ▲▲▲▲▲▲▲▲ description ▲▲▲▲▲▲▲▲ (do not modify or remove section marker) |
| //*************************************************************************** |
| |
| import 'package:flutter/cupertino.dart'; |
| |
| void main() => runApp(const MyApp()); |
| |
| /// This is the main application widget. |
| class MyApp extends StatelessWidget { |
| const MyApp({Key? key}) : super(key: key); |
| |
| static const String _title = 'Flutter Code Sample'; |
| |
| @override |
| Widget build(BuildContext context) { |
| return const CupertinoApp( |
| restorationScopeId: 'app', |
| title: _title, |
| home: MyStatelessWidget(), |
| ); |
| } |
| } |
| |
| /// This is the stateless widget that the main application instantiates. |
| class MyStatelessWidget extends StatelessWidget { |
| const MyStatelessWidget({Key? key}) : super(key: key); |
| |
| @override |
| //******************************************************************** |
| //* ▼▼▼▼▼▼▼▼ code ▼▼▼▼▼▼▼▼ (do not modify or remove section marker) |
| |
| Widget build(BuildContext context) { |
| return CupertinoPageScaffold( |
| navigationBar: const CupertinoNavigationBar( |
| middle: Text('Home'), |
| ), |
| child: Center( |
| child: CupertinoButton( |
| onPressed: () { |
| Navigator.of(context).restorablePush(_modalBuilder); |
| }, |
| child: const Text('Open Modal'), |
| )), |
| ); |
| } |
| |
| static Route<void> _modalBuilder(BuildContext context, Object? arguments) { |
| return CupertinoModalPopupRoute<void>( |
| builder: (BuildContext context) { |
| return CupertinoActionSheet( |
| title: const Text('Title'), |
| message: const Text('Message'), |
| actions: <CupertinoActionSheetAction>[ |
| CupertinoActionSheetAction( |
| child: const Text('Action One'), |
| onPressed: () { |
| Navigator.pop(context); |
| }, |
| ), |
| CupertinoActionSheetAction( |
| child: const Text('Action Two'), |
| onPressed: () { |
| Navigator.pop(context); |
| }, |
| ), |
| ], |
| ); |
| }, |
| ); |
| } |
| |
| //* ▲▲▲▲▲▲▲▲ code ▲▲▲▲▲▲▲▲ (do not modify or remove section marker) |
| //******************************************************************** |
| |
| } |