Created
March 9, 2024 12:36
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alert dialog
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| import 'package:flutter/material.dart'; | |
| void main() => runApp(const MyApp()); | |
| class MyApp extends StatelessWidget { | |
| const MyApp({super.key}); | |
| @override | |
| Widget build(BuildContext context) { | |
| return MaterialApp( | |
| title: 'Flutter Demo', | |
| debugShowCheckedModeBanner: false, | |
| theme: ThemeData( | |
| primarySwatch: Colors.blue, | |
| ), | |
| home: const MyHomePage(title: 'Flutter Demo Home Page'), | |
| ); | |
| } | |
| } | |
| class MyHomePage extends StatefulWidget { | |
| final String title; | |
| const MyHomePage({ | |
| super.key, | |
| required this.title, | |
| }); | |
| @override | |
| State<MyHomePage> createState() => _MyHomePageState(); | |
| } | |
| class _MyHomePageState extends State<MyHomePage> { | |
| @override | |
| Widget build(BuildContext context) { | |
| return TextButton( | |
| onPressed: () => showDialog<String>( | |
| context: context, | |
| builder: (BuildContext context) => AlertDialog( | |
| title: const Text('AlertDialog Title'), | |
| content: const Text('AlertDialog description'), | |
| actions: <Widget>[ | |
| TextButton( | |
| onPressed: () => Navigator.pop(context, 'Cancel'), | |
| child: const Text('Cancel'), | |
| ), | |
| TextButton( | |
| onPressed: () => Navigator.pop(context, 'OK'), | |
| child: const Text('OK'), | |
| ), | |
| ], | |
| ), | |
| ), | |
| child: const Text('Show Dialog'), | |
| ); | |
| } | |
| } |
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