| // 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 [GestureDetector]. |
| |
| void main() => runApp(const GestureDetectorExampleApp()); |
| |
| class GestureDetectorExampleApp extends StatelessWidget { |
| const GestureDetectorExampleApp({super.key}); |
| |
| @override |
| Widget build(BuildContext context) { |
| return const MaterialApp( |
| home: GestureDetectorExample(), |
| ); |
| } |
| } |
| |
| class GestureDetectorExample extends StatefulWidget { |
| const GestureDetectorExample({super.key}); |
| |
| @override |
| State<GestureDetectorExample> createState() => _GestureDetectorExampleState(); |
| } |
| |
| class _GestureDetectorExampleState extends State<GestureDetectorExample> { |
| Color _color = Colors.white; |
| |
| @override |
| Widget build(BuildContext context) { |
| return Container( |
| color: _color, |
| height: 200.0, |
| width: 200.0, |
| child: GestureDetector( |
| onTap: () { |
| setState(() { |
| _color == Colors.yellow ? _color = Colors.white : _color = Colors.yellow; |
| }); |
| }, |
| ), |
| ); |
| } |
| } |