■ Radio 클래스를 사용하는 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 _gender = '남자'; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text('Test Application'), ), body: Align( alignment: Alignment.center, child: Column( mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[ ListTile( title: Text('남자'), leading: Radio( value: '남자', groupValue: _gender, onChanged: (value) { setState(() { _gender = value; }); }, ), ), ListTile( title: Text('여자'), leading: Radio( value: '여자', groupValue: _gender, onChanged: (value) { setState(() { _gender = value; }); }, ), ), SizedBox( height: 40, ), Text( '선택 : $_gender' ) ], ), ), ); } } |
