Android Kotlin-NestedScrollView停止滚动时检测/侦听

这就是我到目前为止所做的：

holder.scrollView.setOnScrollChangeListener(NestedScrollView.OnScrollChangeListener { v, scrollX, scrollY, oldScrollX, oldScrollY ->
    Log.d(tagg, "$scrollY")
})

---

我想检测滚动何时停止，然后获取滚动，如何执行？

确定我就是这样解决的：

private var countDownTimer: CountDownTimer? = null
private fun lastPosUpdate(memeID: Long, scrollPos: Int){

    if(countDownTimer != null){
        countDownTimer!!.cancel()
    }

    countDownTimer = object: CountDownTimer(300, 300) {
        override fun onTick(millisUntilFinished: Long) {

        }

        override fun onFinish() {
            Log.d(tagg, "scroll finished")
        }
    }
    countDownTimer!!.start()
}



holder.scrollView.setOnScrollChangeListener(NestedScrollView.OnScrollChangeListener { v, scrollX, scrollY, oldScrollX, oldScrollY ->
        lastPosUpdate(meme.id, scrollY)
    })