■ CupertinoPicker 클래스를 사용하는 방법을 보여준다.
▶ main.dart
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import 'package:flutter/cupertino.dart'; 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> { final _itemList = List.generate(10, (i) => i); int _result = 0; @override Widget build(BuildContext context) { return Scaffold( appBar: CupertinoNavigationBar( middle: Text('Test Application'), ), body: Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[ CupertinoButton( borderRadius: BorderRadius.circular(16.0), color: Colors.orange, child: Text('RUN'), onPressed: () async { await showCupertinoModalPopup( context: context, builder: (context) => Container( height: 200.0, child: CupertinoPicker( children: _itemList.map((e) => Text('항목 $e')).toList(), itemExtent: 50.0, scrollController: FixedExtentScrollController(initialItem: _result), onSelectedItemChanged: (int index) { setState(() { _result = _itemList[index]; }); }, ) ), ); }, ), Text( '결과 : $_result', ), ], ), ), ); } } |
