■ AlertDialog 클래스를 사용해 알림 대화 상자를 표시하는 방법을 보여준다.
▶ main.dart
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import 'package:flutter/material.dart'; void main() { runApp(TestApplication()); } class TestApplication extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title: 'Test Application', theme: ThemeData( primarySwatch: Colors.blue, ), home: MainPage(), ); } } class MainPage extends StatefulWidget { @override _MainPageState createState() => _MainPageState(); } class _MainPageState extends State<MainPage> { String _dialogResult = ''; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text('Test Application'), ), body: Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[ RaisedButton( child: Text('Run'), color: Colors.blue, textColor: Colors.white, onPressed: () async { String result = await showDialog( context: context, barrierDismissible: false, builder: (BuildContext context) { return AlertDialog( title: Row( children: <Widget>[ Icon(Icons.notifications), Text('확인'), ], ), content: Text('작업을 진행하시겠습니까?'), actions: <Widget>[ FlatButton( child: Text('예'), onPressed: () { Navigator.of(context).pop('YES'); }, ), FlatButton( child: Text('아니오'), onPressed: () { Navigator.of(context).pop('NO'); }, ), ], ); }); setState(() { _dialogResult = result; }); }, ), Text( '결과 : $_dialogResult', ), ], ), ), ); } } |
