节流工具，避免操作太频繁

ThrottleUtil

用于保证某个操作在一定时间内只执行一次的工具。

package com.cashpro.kash.lending.loan.utils;/*** <pre>* Created by zhuguohui* Date: 2024/6/26* Time: 13:43* Desc:用于节流执行任务,限制任务执行的频次* </pre>*/import android.os.Handler;import java.util.HashMap;
import java.util.Map;public class ThrottleUtil {private static final Handler HANDLER = new Handler();private static Map<String, Long> lastExecutionTimeMap = new HashMap<>();private static Map<String, Runnable> runnableMap = new HashMap<>();/*** 执行节流操作，确保操作在连续触发后至少等待指定的时间间隔再执行。** @param opName         要执行操作的名称* @param intervalMillis 时间间隔，以毫秒为单位* @param runnable       要执行的操作*/public static synchronized void executeThrottled(String opName, long intervalMillis, Runnable runnable) {long currentTime = System.currentTimeMillis();long lastExecutionTime = 0;if (lastExecutionTimeMap.containsKey(opName)) {Long aLong = lastExecutionTimeMap.get(opName);if (aLong != null) {lastExecutionTime = aLong;}}// 如果距离上次执行已经超过指定时间间隔，则立即执行操作if (currentTime - lastExecutionTime >= intervalMillis) {runnable.run();lastExecutionTime = currentTime;lastExecutionTimeMap.put(opName, lastExecutionTime);} else {// 如果时间未到，则移除之前的Runnable并重新添加Runnable throttleRunnable = runnableMap.get(opName);if (throttleRunnable != null) {HANDLER.removeCallbacks(throttleRunnable);runnableMap.remove(opName);}throttleRunnable = () -> {runnable.run();long lastExecutionTime1 = System.currentTimeMillis();lastExecutionTimeMap.put(opName, lastExecutionTime1);runnableMap.remove(opName);};runnableMap.put(opName, throttleRunnable);HANDLER.postDelayed(throttleRunnable, intervalMillis - (currentTime - lastExecutionTime));}}// 工具类不需要实例化，所以构造器私有private ThrottleUtil() {// 阻止实例化}// 可以在Activity或Fragment的onDestroy()中调用此方法，以确保没有内存泄漏public static void clearCallbacks(String... opNames) {for (String opName : opNames) {Runnable runnable = runnableMap.get(opName);if (runnable != null) {HANDLER.removeCallbacks(runnable);}runnableMap.remove(opName);}}
}