75 lines
1.7 KiB
Dart
75 lines
1.7 KiB
Dart
import 'dart:async';
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import 'package:star_lock/app_settings/app_settings.dart';
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///
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/// 节流器 可以防止一个函数在短时间内被重复调用
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// 创建一个1秒的节流器
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// Throttler throttler = Throttler(Duration(seconds: 1));
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//
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// // 示例函数
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// void myFunction() {
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// print("函数被调用");
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// }
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//
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// // 调用示例函数，会在1秒内只输出一次
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// throttler.throttle(myFunction);
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//
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// // 在自定义时间间隔内防止函数被重复调用
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// Throttler customThrottler = Throttler(Duration(milliseconds: 500)); // 自定义500毫秒的间隔
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// customThrottler.throttle(myFunction); // 在500毫秒内多次调用只会执行一次函数
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//
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// // 在需要时取消节流器
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// customThrottler.cancel(); // 取消节流器，函数再次被调用会立即执行
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class Throttler {
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Throttler(this._delay);
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final Duration _delay;
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Timer? _timer;
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late Function _callback;
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void throttle(Function callback) {
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if (_timer == null || !_timer!.isActive) {
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_callback = callback;
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_timer = Timer(_delay, () {
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_callback();
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_timer?.cancel();
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});
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}
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}
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void cancel() {
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_timer?.cancel();
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}
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}
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///
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/// 防止抖动
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///
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class FunctionBlocker {
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FunctionBlocker({required this.duration});
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bool _blocked = false;
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Duration duration;
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//阻止函数执行
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void block(Function function) {
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if (!_blocked) {
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_blocked = true;
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function();
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Timer(duration, () {
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_blocked = false;
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});
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}
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}
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//倒计时禁止
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void countdownProhibited({required Duration duration}) {
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_blocked = true;
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Timer(duration, () {
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_blocked = false;
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});
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}
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}
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