Flutter -更改'onTap‘方法时InkWell不工作

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: Text('InkWell Example')),
        body: Center(child: MyInkWell()),
      ),
    );
  }
}

class MyInkWell extends StatefulWidget {
  @override
  _MyInkWellState createState() => _MyInkWellState();
}

class _MyInkWellState extends State<MyInkWell> {
  void _handleTap() {
    print('InkWell tapped!');
  }

  @override
  Widget build(BuildContext context) {
    return InkWell(
      onTap: _handleTap,
      child: Container(
        padding: EdgeInsets.all(12.0),
        decoration: BoxDecoration(
          color: Colors.blue,
          borderRadius: BorderRadius.circular(8.0),
        ),
        child: Text(
          'Tap Me',
          style: TextStyle(color: Colors.white, fontSize: 20),
        ),
      ),
    );
  }
}