// 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 = .lafayette;

  @override
  Widget build(BuildContext context) {
    return RadioGroup<SingingCharacter>(
      groupValue: _character,
      onChanged: (SingingCharacter? value) {
        setState(() {
          _character = value;
        });
      },
      child: const Column(
        children: <Widget>[
          ListTile(
            title: Text('Lafayette'),
            leading: Radio<SingingCharacter>(value: SingingCharacter.lafayette),
          ),
          ListTile(
            title: Text('Thomas Jefferson'),
            leading: Radio<SingingCharacter>(value: SingingCharacter.jefferson),
          ),
        ],
      ),
    );
  }
}