recyclerview interface

    internal inner class RecyclerTouchListener(
            context: Context, private val clicklistener: ClickListener?):
            RecyclerView.OnItemTouchListener {
        private val gestureDetector: GestureDetector = GestureDetector(context,
                object: GestureDetector.SimpleOnGestureListener() {
                    override fun onSingleTapUp(e: MotionEvent): Boolean {
                        return true
                    }
                })

        override fun onInterceptTouchEvent(rv: RecyclerView, e: MotionEvent): Boolean {
            val child = rv.findChildViewUnder(e.x, e.y)
            if (child != null && clicklistener != null && gestureDetector.onTouchEvent(e)) {
                clicklistener.onClick(child, rv.getChildAdapterPosition(child))
            }
            return false
        }

        override fun onTouchEvent(rv: RecyclerView, e: MotionEvent) {}
        override fun onRequestDisallowInterceptTouchEvent(disallowIntercept: Boolean) {}
    }

	interface ClickListener {
        fun onClick(view: View, position: Int)
    }

        rvData.addOnItemTouchListener(RecyclerTouchListener(this,
                object : ClickListener {
                    override fun onClick(view: View, position: Int) {
                        showToast(this@ActivityPulsaData, "data: $position")
                    }
                }))