| // 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 MaterialStateProperty |
| |
| 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: MyStatelessWidget(), |
| ), |
| ), |
| ); |
| } |
| } |
| |
| class MyStatelessWidget extends StatelessWidget { |
| const MyStatelessWidget({super.key}); |
| |
| @override |
| Widget build(BuildContext context) { |
| Color getColor(Set<MaterialState> states) { |
| const Set<MaterialState> interactiveStates = <MaterialState>{ |
| MaterialState.pressed, |
| MaterialState.hovered, |
| MaterialState.focused, |
| }; |
| if (states.any(interactiveStates.contains)) { |
| return Colors.blue; |
| } |
| return Colors.red; |
| } |
| |
| return TextButton( |
| style: ButtonStyle( |
| foregroundColor: MaterialStateProperty.resolveWith(getColor), |
| ), |
| onPressed: () {}, |
| child: const Text('TextButton'), |
| ); |
| } |
| } |