import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: MyGestureDemo(),
    );
  }
}

class MyGestureDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('手势识别示例'),
      ),
      body: Center(
        child: GestureDetector(
          onTap: () {
            // 处理点击手势
            print('点击了');
          },
          onDoubleTap: () {
            // 处理双击手势
            print('双击了');
          },
          onLongPress: () {
            // 处理长按手势
            print('长按了');
          },
          onVerticalDragDown: (details) {
            // 处理垂直拖动手势开始
            print('垂直拖动开始');
          },
          onVerticalDragUpdate: (details) {
            // 处理垂直拖动手势更新
            print('垂直拖动更新，delta: ${details.primaryDelta}');
          },
          onVerticalDragEnd: (details) {
            // 处理垂直拖动手势结束
            print('垂直拖动结束');
          },
          child: Container(
            width: 200.0,
            height: 200.0,
            color: Colors.blue,
            child: Center(
              child: Text(
                '触摸我',
                style: TextStyle(color: Colors.white),
              ),
            ),
          ),
        ),
      ),
    );
  }
}