throttleWithArgs<T> static method

(void Function(T), void Function()) throttleWithArgs<T>(void func(T), Duration delay)

节流函数（带参数）

限制函数执行频率，在指定时间内只执行一次

func 要节流的函数 delay 节流时间

返回节流后的函数和取消函数

Implementation

static (void Function(T), void Function()) throttleWithArgs<T>(
  void Function(T) func,
  Duration delay,
) {
  bool isThrottled = false;
  Timer? timer;
  void throttledFn(T arg) {
    if (!isThrottled) {
      func(arg);
      isThrottled = true;
      timer = Timer(delay, () {
        isThrottled = false;
        timer = null;
      });
    }
  }

  void cancel() {
    timer?.cancel();
    timer = null;
    isThrottled = false;
  }

  return (throttledFn, cancel);
}