| // Copyright 2014 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| import 'package:flutter/material.dart'; |
| |
| import 'use_cases.dart'; |
| |
| class RadioListTileUseCase extends UseCase { |
| |
| @override |
| String get name => 'RadioListTile'; |
| |
| @override |
| String get route => '/radio-list-tile'; |
| |
| @override |
| Widget build(BuildContext context) => _MainWidget(); |
| } |
| |
| class _MainWidget extends StatefulWidget { |
| @override |
| State<_MainWidget> createState() => _MainWidgetState(); |
| } |
| |
| enum SingingCharacter { lafayette, jefferson } |
| |
| class _MainWidgetState extends State<_MainWidget> { |
| SingingCharacter _value = SingingCharacter.lafayette; |
| |
| void _onChanged(SingingCharacter? value) { |
| setState(() { |
| _value = value!; |
| }); |
| } |
| |
| @override |
| Widget build(BuildContext context) { |
| return Scaffold( |
| appBar: AppBar(title: const Text('Radio button')), |
| body: ListView( |
| children: <Widget>[ |
| RadioListTile<SingingCharacter>( |
| title: const Text('Lafayette'), |
| value: SingingCharacter.lafayette, |
| groupValue: _value, |
| onChanged: _onChanged, |
| ), |
| RadioListTile<SingingCharacter>( |
| title: const Text('Jefferson'), |
| value: SingingCharacter.jefferson, |
| groupValue: _value, |
| onChanged: _onChanged, |
| ), |
| ], |
| ), |
| ); |
| } |
| } |