| // 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. |
| |
| // Flutter code sample for custom labeled radio. |
| |
| import 'package:flutter/gestures.dart'; |
| |
| import 'package:flutter/material.dart'; |
| |
| void main() => runApp(const LabeledRadioApp()); |
| |
| class LabeledRadioApp extends StatelessWidget { |
| const LabeledRadioApp({super.key}); |
| |
| @override |
| Widget build(BuildContext context) { |
| return MaterialApp( |
| theme: ThemeData(useMaterial3: true), |
| home: Scaffold( |
| appBar: AppBar(title: const Text('Custom Labeled Radio Sample')), |
| body: const LabeledRadioExample(), |
| ), |
| ); |
| } |
| } |
| |
| class LinkedLabelRadio extends StatelessWidget { |
| const LinkedLabelRadio({ |
| super.key, |
| required this.label, |
| required this.padding, |
| required this.groupValue, |
| required this.value, |
| required this.onChanged, |
| }); |
| |
| final String label; |
| final EdgeInsets padding; |
| final bool groupValue; |
| final bool value; |
| final ValueChanged<bool> onChanged; |
| |
| @override |
| Widget build(BuildContext context) { |
| return Padding( |
| padding: padding, |
| child: Row( |
| children: <Widget>[ |
| Radio<bool>( |
| groupValue: groupValue, |
| value: value, |
| onChanged: (bool? newValue) { |
| onChanged(newValue!); |
| }, |
| ), |
| RichText( |
| text: TextSpan( |
| text: label, |
| style: TextStyle( |
| color: Theme.of(context).colorScheme.primary, |
| decoration: TextDecoration.underline, |
| ), |
| recognizer: TapGestureRecognizer() |
| ..onTap = () { |
| debugPrint('Label has been tapped.'); |
| }, |
| ), |
| ), |
| ], |
| ), |
| ); |
| } |
| } |
| |
| class LabeledRadioExample extends StatefulWidget { |
| const LabeledRadioExample({super.key}); |
| |
| @override |
| State<LabeledRadioExample> createState() => _LabeledRadioExampleState(); |
| } |
| |
| class _LabeledRadioExampleState extends State<LabeledRadioExample> { |
| bool _isRadioSelected = false; |
| |
| @override |
| Widget build(BuildContext context) { |
| return Scaffold( |
| body: Column( |
| mainAxisAlignment: MainAxisAlignment.center, |
| children: <Widget>[ |
| LinkedLabelRadio( |
| label: 'First tappable label text', |
| padding: const EdgeInsets.symmetric(horizontal: 5.0), |
| value: true, |
| groupValue: _isRadioSelected, |
| onChanged: (bool newValue) { |
| setState(() { |
| _isRadioSelected = newValue; |
| }); |
| }, |
| ), |
| LinkedLabelRadio( |
| label: 'Second tappable label text', |
| padding: const EdgeInsets.symmetric(horizontal: 5.0), |
| value: false, |
| groupValue: _isRadioSelected, |
| onChanged: (bool newValue) { |
| setState(() { |
| _isRadioSelected = newValue; |
| }); |
| }, |
| ), |
| ], |
| ), |
| ); |
| } |
| } |