Snippet to navigate through recyclerView using accessibility

GridKeyEventDelegateGist.kt

private fun onDownKeyPressed(currentFocus: View): Boolean = with(currentFocus) {
        getNextElementPosition().let { nextElementPosition ->
            if (isPositionInbound(nextElementPosition)) {
                sendFocusToListItem(nextElementPosition)
            } else {
                rootView.findViewById<View>(R.id.carouselRV)?.sendAccessibilityFocus()
            }
        }
        return true
    }

    private fun onUpKeyPressed(currentFocus: View): Boolean = with(currentFocus) {
        getPreviousElementPosition().let { previousElementPosition ->
            if (isPositionInbound(previousElementPosition)) {
                sendFocusToListItem(previousElementPosition)
            } else {
                rootView.findViewById<View>(R.id.accessibility_state)
                    ?.sendAccessibilityFocus(View.FOCUS_UP)
            }
        }
        return true
    }