Android Layout: Horizontal Recyclerview inside a Vertical Recyclerview inside a Viewpager with Scroll Behaviors

Question

This is the app I\'m trying to build with all the elements mapped out below:

Everything works, however, I want the inner horizontal recyclerview not to capt

Answer 1

if any one still looking , try this :

private val Y_BUFFER = 10
private var preX = 0f
private var preY = 0f

mView.rv.addOnItemTouchListener(object : RecyclerView.OnItemTouchListener {
        override fun onTouchEvent(p0: RecyclerView, p1: MotionEvent) {

            }

        override fun onInterceptTouchEvent(rv: RecyclerView, e: MotionEvent): Boolean {
                when (e.action) {
                    MotionEvent.ACTION_DOWN -> rv.parent.requestDisallowInterceptTouchEvent(true)
                    MotionEvent.ACTION_MOVE -> {
                        if (Math.abs(e.x - preX) > Math.abs(e.y - preY)) {
                            rv.parent.requestDisallowInterceptTouchEvent(true)
                        } else if (Math.abs(e.y - preY) > Y_BUFFER) {
                            rv.parent.requestDisallowInterceptTouchEvent(false)
                        }

                    }
                }
                preX = e.x
                preY = e.y
                return false
            }

            override fun onRequestDisallowInterceptTouchEvent(p0: Boolean) {
            }
        })

it checks if currently scrolling horizontal then don't allow parent to handel event