兩種方案 侵入式防抖處理(NoShakeClickListener) implements View.OnClickListener 無侵入式防抖處理(NoShakeClickListener2) not implements View.OnClickListener侵入式防抖處理(NoShakeClickListener)

1. 既適用于單個View事件防抖, 也適用于Adapter中ItemView事件防抖

2. 如果事件為跳轉到新的Activity, 該Activity啟動模型應為android:launchMode='singleTop'

Java 版本

public abstract class NoShakeClickListener implements View.OnClickListener { private long mTimeInterval = 500L; /** * 最近一次點擊的時間 */ private long mLastClickTime; /** * 最近一次點擊的控件ID */ private int mLastClickViewId; public NoShakeClickListener() { } public NoShakeClickListener(long interval) { this.mTimeInterval = interval; } @Override public void onClick(View v) { final boolean isFastClick = isFastDoubleClick(v, this.mTimeInterval); if (isFastClick) { onFastClick(v); } else { onSingleClick(v); } } /** * 是否是快速點擊 * * @param v 點擊的控件 * @param interval 時間間期（毫秒） * @return true:是，false:不是 */ private boolean isFastDoubleClick(View v, long interval) { int viewId = v.getId(); long nowTime = System.currentTimeMillis(); long timeInterval = Math.abs(nowTime - mLastClickTime); if (timeInterval < interval && viewId == mLastClickViewId) { // 快速點擊事件 return true; } else { // 單次點擊事件 mLastClickTime = nowTime; mLastClickViewId = viewId; return false; } } protected void onFastClick(View v) {} protected abstract void onSingleClick(View v);}

可簡寫為

public abstract class NoShakeListener implements OnClickListener { private long mLastClickTime = 0; private boolean isFastDoubleClick() { long nowTime = System.currentTimeMillis(); if (Math.abs(nowTime - mLastClickTime) < 500) { return true; // 快速點擊事件 } else { mLastClickTime = nowTime; return false; // 單次點擊事件 } } @Override public void onClick(View v) { if (isFastDoubleClick()) { onFastClick(v); } else { onSingleClick(v); } } protected void onFastClick(View v) { } protected abstract void onSingleClick(View v);}Kotlin版本

abstract class NoShakeClickListener @JvmOverloads constructor(interval: Long = 500L) : View.OnClickListener { private var mTimeInterval = 500L private var mLastClickTime: Long = 0 //最近一次點擊的時間 private var mLastClickViewId = 0 //最近一次點擊的控件ID init { mTimeInterval = interval } override fun onClick(v: View) { if (isFastDoubleClick(v, mTimeInterval)) onFastClick(v) else onSingleClick(v) } /** * 是否是快速點擊 * * @param v 點擊的控件 * @param interval 時間間期（毫秒） * @return true:是，false:不是 */ private fun isFastDoubleClick(v: View, interval: Long): Boolean { val viewId = v.id val nowTime = System.currentTimeMillis() val timeInterval = abs(nowTime - mLastClickTime) return if (timeInterval < interval && viewId == mLastClickViewId) { // 快速點擊事件 true } else { // 單次點擊事件 mLastClickTime = nowTime mLastClickViewId = viewId false } } protected open fun onFastClick(v: View?) {} protected abstract fun onSingleClick(v: View?)}

差點忘了... 相應的擴展函數:

fun View?.noShake(block: (v: View?) -> Unit) { this?.apply { setOnClickListener(object : NoShakeClickListener() { override fun onSingleClick(v: View?) {block.invoke(v) } }) }}RxJava2 clickExt.kt

inline fun <T : View> T.noShake(crossinline listener: T.() -> Unit) = this.noShake(1000, listener)inline fun <T : View> T.noShake(windowDuration: Long = 500, crossinline listener : T.() -> Unit) = RxView.clicks(this) .throttleFirst(windowDuration, TimeUnit.MILLISECONDS) .subscribe(object : Observer<Any> { override fun onSubscribe(d: Disposable) {} override fun onError(e: Throwable) {} override fun onComplete() {} override fun onNext(o: Any) {listener() } })無侵入式防抖處理(NoShakeClickListener2)特點:

1 移除了對View.OnClickListener的依賴, 在不破壞原有代碼已設置好的OnClickListener基礎上繼續處理事件防抖;

2 支持簡單處理事件和泛型回調

/** * 事件防抖 * 注: 不僅適用于 View , 其他控件如: MenuItem 同樣適用 * * 1.既適用于單個`View`事件防抖, 也適用于`Adapter`中`ItemView`事件防抖 * 2.如果事件為跳轉到新的`Activity`, 該`Activity`啟動模型應為`android:launchMode='singleTop'` */open class NoShakeClickListener2 @JvmOverloads constructor(interval: Long = 500L) { private var mTimeInterval = 500L private var mLastClickTime: Long = 0 //最近一次點擊的時間 private var mLastClick: Any? = null //最近一次點擊的控件 View or MenuItem ... init { mTimeInterval = interval } fun proceedClick() { if (isFastClick(null, mTimeInterval)) onFastClick(null) else onSingleClick(null) } fun <T> proceedClick(item: T?) { if (isFastClick(item, mTimeInterval)) onFastClick(item) else onSingleClick(item) } /** * 是否是快速點擊 * * @param item 點擊的控件 View or MenuItem ... * @param interval 時間間期（毫秒） * @return true:是，false:不是 */ private fun <T> isFastClick(item: T?, interval: Long): Boolean { val nowTime = System.currentTimeMillis() val timeInterval = abs(nowTime - mLastClickTime) return if (timeInterval < interval && item == mLastClick) { // 快速點擊事件 true } else { // 單次點擊事件 mLastClickTime = nowTime mLastClick = item false } } protected open fun onFastClick(item: Any?) {} protected open fun onSingleClick(item: Any?) {}}實用案例

1 簡單使用

//快速點擊事件val fastClick=object :NoShakeClickListener2(){ override fun onFastClick(item: Any?) { super.onFastClick(item) //此時 item == null Log.e('123', 'onFastClick Click') }}BottomNavigationView.setOnNavigationItemSelectedListener { switchPage(it.itemId) fastClick.proceedClick() true}

2 回傳參數

//快速點擊事件val fastClick=object :NoShakeClickListener2(){ override fun onFastClick(item: Any?) { super.onFastClick(item) //此時 item == null 為 proceedClick(it) 中的 it Log.e('123', 'onFastClick Click') }}BottomNavigationView.setOnNavigationItemSelectedListener { switchPage(it.itemId) fastClick.proceedClick(it) true}

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