| // 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 [MaterialStateBorderSide]. |
| |
| import 'package:flutter/material.dart'; |
| |
| void main() => runApp(const MyApp()); |
| |
| class MyApp extends StatelessWidget { |
| const MyApp({super.key}); |
| |
| static const String _title = 'Flutter Code Sample'; |
| |
| @override |
| Widget build(BuildContext context) { |
| return MaterialApp( |
| title: _title, |
| home: Scaffold( |
| appBar: AppBar(title: const Text(_title)), |
| body: const Center( |
| child: MyStatefulWidget(), |
| ), |
| ), |
| ); |
| } |
| } |
| |
| class MyStatefulWidget extends StatefulWidget { |
| const MyStatefulWidget({super.key}); |
| |
| @override |
| State<MyStatefulWidget> createState() => _MyStatefulWidgetState(); |
| } |
| |
| class _MyStatefulWidgetState extends State<MyStatefulWidget> { |
| bool isSelected = true; |
| |
| @override |
| Widget build(BuildContext context) { |
| return FilterChip( |
| label: const Text('Select chip'), |
| selected: isSelected, |
| onSelected: (bool value) { |
| setState(() { |
| isSelected = value; |
| }); |
| }, |
| side: MaterialStateBorderSide.resolveWith((Set<MaterialState> states) { |
| if (states.contains(MaterialState.selected)) { |
| return const BorderSide(color: Colors.red); |
| } |
| return null; // Defer to default value on the theme or widget. |
| }), |
| ); |
| } |
| } |