// 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.toggleable]. void main() => runApp(const ToggleableExampleApp()); class ToggleableExampleApp extends StatelessWidget { const ToggleableExampleApp({super.key}); @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar(title: const Text('Radio Sample')), body: const ToggleableExample(), ), ); } } class ToggleableExample extends StatefulWidget { const ToggleableExample({super.key}); @override State createState() => _ToggleableExampleState(); } class _ToggleableExampleState extends State { int? groupValue; static const List selections = [ 'Hercules Mulligan', 'Eliza Hamilton', 'Philip Schuyler', 'Maria Reynolds', 'Samuel Seabury', ]; @override Widget build(BuildContext context) { return Scaffold( body: ListView.builder( itemBuilder: (BuildContext context, int index) { return Row( mainAxisSize: MainAxisSize.min, children: [ Radio( value: index, groupValue: groupValue, // TRY THIS: Try setting the toggleable value to false and // see how that changes the behavior of the widget. toggleable: true, onChanged: (int? value) { setState(() { groupValue = value; }); }), Text(selections[index]), ], ); }, itemCount: selections.length, ), ); } }