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CupertinoAlertDialog: Update sample (#98357)
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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flutter code sample for CupertinoAlertDialog
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import 'package:flutter/cupertino.dart';
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void main() => runApp(const MyApp());
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class MyApp extends StatelessWidget {
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const MyApp({Key? key}) : super(key: key);
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static const String _title = 'CupertinoAlertDialog Sample';
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@override
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Widget build(BuildContext context) {
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return const CupertinoApp(
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title: _title,
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home: ActionSheetSample(title: _title),
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);
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}
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}
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class ActionSheetSample extends StatelessWidget {
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const ActionSheetSample({Key? key, required this.title}) : super(key: key);
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final String title;
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// This shows a CupertinoModalPopup which hosts a CupertinoAlertDialog.
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void _showAlertDialog(BuildContext context) {
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showCupertinoModalPopup<void>(
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context: context,
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builder: (BuildContext context) => CupertinoAlertDialog(
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title: const Text('Alert'),
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content: const Text('Proceed with destructive action?'),
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actions: <CupertinoDialogAction>[
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CupertinoDialogAction(
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/// This parameter indicates this action is the default,
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/// and turns the action's text to bold text.
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isDefaultAction: true,
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onPressed: () {
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Navigator.pop(context);
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},
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child: const Text('No'),
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),
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CupertinoDialogAction(
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/// This parameter indicates the action would perform
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/// a destructive action such as deletion, and turns
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/// the action's text color to red.
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isDestructiveAction: true,
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onPressed: () {
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Navigator.pop(context);
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},
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child: const Text('Yes'),
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)
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],
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),
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);
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}
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@override
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Widget build(BuildContext context) {
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return CupertinoPageScaffold(
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navigationBar: CupertinoNavigationBar(
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middle: Text(title),
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),
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child: Center(
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child: CupertinoButton(
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onPressed: () => _showAlertDialog(context),
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child: const Text('CupertinoAlertDialog'),
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),
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),
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);
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}
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}
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@ -0,0 +1,27 @@
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// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter/cupertino.dart';
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import 'package:flutter_api_samples/cupertino/dialog/cupertino_alert_dialog.0.dart' as example;
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import 'package:flutter_test/flutter_test.dart';
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void main() {
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testWidgets('Perform an action on CupertinoAlertDialog', (WidgetTester tester) async {
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const String actionText = 'Yes';
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await tester.pumpWidget(
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const example.MyApp(),
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);
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// Launch the CupertinoAlertDialog.
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await tester.tap(find.byType(CupertinoButton));
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await tester.pump();
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await tester.pumpAndSettle();
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expect(find.text(actionText), findsOneWidget);
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// Tap on an action to close the CupertinoAlertDialog.
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await tester.tap(find.text(actionText));
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await tester.pumpAndSettle();
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expect(find.text(actionText), findsNothing);
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});
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}
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@ -173,56 +173,12 @@ bool _isInAccessibilityMode(BuildContext context) {
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/// Typically passed as the child widget to [showDialog], which displays the
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/// dialog.
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///
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/// {@tool snippet}
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/// {@tool dartpad}
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/// This sample shows how to use a [CupertinoAlertDialog].
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/// The [CupertinoAlertDialog] shows an alert with a set of two choices
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/// when [CupertinoButton] is pressed.
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///
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/// ```dart
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/// class MyStatefulWidget extends StatefulWidget {
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/// const MyStatefulWidget({Key? key}) : super(key: key);
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///
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/// @override
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/// State<MyStatefulWidget> createState() => _MyStatefulWidgetState();
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/// }
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///
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/// class _MyStatefulWidgetState extends State<MyStatefulWidget> {
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/// @override
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/// Widget build(BuildContext context) {
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/// return CupertinoPageScaffold(
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/// child: Center(
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/// child: CupertinoButton(
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/// onPressed: () {
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/// showCupertinoDialog<void>(
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/// context: context,
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/// builder: (BuildContext context) => CupertinoAlertDialog(
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/// title: const Text('Alert'),
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/// content: const Text('Proceed with destructive action?'),
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/// actions: <CupertinoDialogAction>[
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/// CupertinoDialogAction(
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/// child: const Text('No'),
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/// onPressed: () {
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/// Navigator.pop(context);
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/// },
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/// ),
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/// CupertinoDialogAction(
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/// child: const Text('Yes'),
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/// isDestructiveAction: true,
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/// onPressed: () {
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/// // Do something destructive.
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/// },
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/// )
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/// ],
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/// ),
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/// );
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/// },
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/// child: const Text('CupertinoAlertDialog'),
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/// ),
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/// ),
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/// );
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/// }
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/// }
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/// ```
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/// ** See code in examples/api/lib/cupertino/dialog/cupertino_alert_dialog.0.dart **
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/// {@end-tool}
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///
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/// See also:
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