Flutter应用程序5次执行同一行代码

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('Flutter Demo'),
        ),
        body: Center(
          child: MyButton(),
        ),
      ),
    );
  }
}

class MyButton extends StatefulWidget {
  @override
  _MyButtonState createState() => _MyButtonState();
}

class _MyButtonState extends State<MyButton> {
  int count = 0;

  void incrementCounter() {
    setState(() {
      count++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return ElevatedButton(
      onPressed: incrementCounter,
      child: Text('Increment'),
    );
  }
}

class MyButton extends StatefulWidget {
  @override
  _MyButtonState createState() => _MyButtonState();
}

class _MyButtonState extends State<MyButton> {
  int count = 0;
  bool _isButtonDisabled = false;

  void incrementCounter() async {
    setState(() {
      _isButtonDisabled = true;
    });
    await Future.delayed(Duration(seconds: 1)); // 模拟耗时操作
    setState(() {
      count++;
      _isButtonDisabled = false;
    });
  }

  @override
  Widget build(BuildContext context) {
    return ElevatedButton(
      onPressed: _isButtonDisabled ? null : incrementCounter,
      child: Text('Increment'),
    );
  }
}