40 lines
808 B
Dart
40 lines
808 B
Dart
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/* import 'package:flutter/foundation.dart';
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import 'dart:async';
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class Debouncer {
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final int milliseconds;
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VoidCallback action;
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Timer _timer;
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Debouncer({ milliseconds });
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/* */
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run(VoidCallback action) {
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if (_timer != null) {
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_timer.cancel();
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}
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_timer = Timer(Duration(milliseconds: milliseconds), action);
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}
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}
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*/
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import 'dart:async';
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/// 函数防抖
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///
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/// [func]: 要执行的方法
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/// [delay]: 要迟延的时长
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Function(T) debouncer<T>(Function(T text)? func, {int? delayTime}) {
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Duration delay = Duration(milliseconds: delayTime ?? 1500);
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Timer? timer;
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Function(T) target = (T value) {
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if (timer?.isActive ?? false) {
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timer?.cancel();
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}
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timer = Timer(delay, () {
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if (func != null) func.call(value);
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});
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};
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return target;
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}
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