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// 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';
/// Flutter code sample for [Radio].
void main() => runApp(const RadioExampleApp());
class RadioExampleApp extends StatelessWidget {
const RadioExampleApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(title: const Text('Radio Sample')),
body: const Center(
child: RadioExample(),
),
),
);
}
}
enum SingingCharacter { lafayette, jefferson }
class RadioExample extends StatefulWidget {
const RadioExample({super.key});
@override
State<RadioExample> createState() => _RadioExampleState();
}
class _RadioExampleState extends State<RadioExample> {
SingingCharacter? _character = SingingCharacter.lafayette;
@override
Widget build(BuildContext context) {
return Column(
children: <Widget>[
ListTile(
title: const Text('Lafayette'),
leading: Radio<SingingCharacter>(
value: SingingCharacter.lafayette,
groupValue: _character,
onChanged: (SingingCharacter? value) {
setState(() {
_character = value;
});
},
),
),
ListTile(
title: const Text('Thomas Jefferson'),
leading: Radio<SingingCharacter>(
value: SingingCharacter.jefferson,
groupValue: _character,
onChanged: (SingingCharacter? value) {
setState(() {
_character = value;
});
},
),
),
],
);
}
}