// 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 showCupertinoDialog // //*************************************************************************** //* ▼▼▼▼▼▼▼▼ description ▼▼▼▼▼▼▼▼ (do not modify or remove section marker) // This sample demonstrates how to create a restorable Cupertino dialog. This is // accomplished by enabling state restoration by specifying // [CupertinoApp.restorationScopeId] and using [Navigator.restorablePush] to // push [CupertinoDialogRoute] 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(_dialogBuilder); }, child: const Text('Open Dialog'), )), ); } static Route _dialogBuilder( BuildContext context, Object? arguments) { return CupertinoDialogRoute( context: context, builder: (BuildContext context) { return const CupertinoAlertDialog( title: Text('Title'), content: Text('Content'), actions: [ CupertinoDialogAction(child: Text('Yes')), CupertinoDialogAction(child: Text('No')), ], ); }, ); } //* ▲▲▲▲▲▲▲▲ code ▲▲▲▲▲▲▲▲ (do not modify or remove section marker) //******************************************************************** }