import 'dart:async';
import 'dart:ui';

class Debouncer {
  final int milliseconds;
  Timer? _timer;

  Debouncer({this.milliseconds = 500});

  /// 调用时会延迟执行，如果期间再次调用会重置计时器
  void run(VoidCallback action) {
    _timer?.cancel();
    _timer = Timer(Duration(milliseconds: milliseconds), action);
  }

  /// 页面销毁时要记得调用
  void dispose() {
    _timer?.cancel();
  }
}