如果按钮做的唯一一件事是启动一个新活动，这个问题可以通过“singleTop”活动启动模式和在意图上设置FLAG_ACTIVITY_CLEAR_TOP来解决。这种方法不适用于复杂活动的层次结构，但适用于简单的树状应用程序结构。

防止点击乘法btns

使用:

private val disposables = CompositeDisposable()
private val clickInteractor = ClickInteractor(disposables)
...
button1.setOnClickListener{
     clickInteractor.click {
          Toast.makeText(context, "Btn1", Toast.LENGTH_LONG).show()
     }
}
button2.setOnClickListener{
     clickInteractor.click {
          Toast.makeText(context, "Btn2", Toast.LENGTH_LONG).show()
     }
}

ClickInteractor.kt:

class ClickInteractor constructor(disposables: CompositeDisposable) {
    private val performPublish = PublishSubject.create<ClickInteractorCallback>()

    init {
        performPublish
            .subscribeOn(Schedulers.io())
            .observeOn(Schedulers.io())
            .throttleFirst(1, TimeUnit.SECONDS, Schedulers.io())
            .observeOn(AndroidSchedulers.mainThread())
            .doOnNext { callback ->
                callback.invoke()
            }
            .retry()
            .execute(disposables)
    }

    fun click(callback: ClickInteractorCallback) {
        performPublish.onNext(callback)
    }
}

typealias ClickInteractorCallback = () -> Unit

我希望这能帮助你，把代码放在你的事件处理程序。

// --------------------------------------------------------------------------------

    boolean hasTag = null != which.getTag( R.id.preventing_double_click_tag );

    if ( hasTag ) {
        // Do not handle again...
        return;
    } else {
        which.setTag( R.id.action, Boolean.TRUE );

        which.postDelayed( new Runnable() {
            @Override
            public void run() {
                which.setTag( R.id.action, null );
                Log.d( "onActin", " The preventing double click tag was removed." );
            }

        }, 2000 );
    }

我的解决方案(Kotlin):

class OnDebouncedClickListener(private val delayInMilliSeconds: Long, val action: () -> Unit) : View.OnClickListener {
    var enable = true

    override fun onClick(view: View?) {
        if (enable) {
            enable = false
            view?.postDelayed(delayInMilliSeconds) { enable = true }
            action()
        }
    }
}

fun View.setOnDebouncedClickListener(delayInMilliSeconds: Long = 500, action: () -> Unit) {
    val onDebouncedClickListener = OnDebouncedClickListener(delayInMilliSeconds, action)
    setOnClickListener(onDebouncedClickListener)
}

使用:

button.apply {       
            setOnDebouncedClickListener {
                //your action on click
            }
        }

在Java中有一个本地debounce click监听器

view.setOnClickListener(new DebouncedOnClickListener(1000) { //in milisecs
            @Override
            public void onDebouncedClick(View v) {
                //action
            }
        });

KLEANEST Kotlin惯用方式:

class OnSingleClickListener(private val block: () -> Unit) : View.OnClickListener {

    private var lastClickTime = 0L

    override fun onClick(view: View) {
        if (SystemClock.elapsedRealtime() - lastClickTime < 1000) {
            return
        }
        lastClickTime = SystemClock.elapsedRealtime()

        block()
    }
}

fun View.setOnSingleClickListener(block: () -> Unit) {
    setOnClickListener(OnSingleClickListener(block))
}

用法:

button.setOnSingleClickListener { ... }

或者加上一个控制油门的附加参数

class OnClickListenerThrottled(private val block: () -> Unit, private val wait: Long) : View.OnClickListener {

    private var lastClickTime = 0L

    override fun onClick(view: View) {
        if (SystemClock.elapsedRealtime() - lastClickTime < wait) {
            return
        }
        lastClickTime = SystemClock.elapsedRealtime()

        block()
    }
}

/**
 * A throttled click listener that only invokes [block] at most once per every [wait] milliseconds.
 */
fun View.setOnClickListenerThrottled(wait: Long = 1000L, block: () -> Unit) {
    setOnClickListener(OnClickListenerThrottled(block, wait))
}

Usages:

button.setOnClickListenerThrottled(2000L) { /** some action */}
or
button.setOnClickListenerThrottled { /** some action */}