对于Flutter块，如何使用具有相同回调的两个事件？

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Gesture Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Gesture Demo'),
      ),
      body: Center(
        child: GestureDetector(
          onTap: () {
            // 处理单击事件
            print('单击');
          },
          onDoubleTap: () {
            // 处理双击事件
            print('双击');
          },
          child: Container(
            width: 200,
            height: 200,
            color: Colors.blue,
          ),
        ),
      ),
    );
  }
}