import 'dart:async';

import 'package:flutter/material.dart';

class Debouncer {
  final int milliseconds;
  VoidCallback? action;
  Timer? _timer;

  Debouncer({required this.milliseconds});

  void run(VoidCallback action) {
    // 如果_timer不为空，我们取消之前的计时器
    if (_timer != null) {
      _timer!.cancel();
    }
    // 创建一个新的计时器
    _timer = Timer(Duration(milliseconds: milliseconds), action);
  }
}