@Override
    public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {

    }
Handles the touch event and determines whether to show the fast scroller (or updates it if
it is already showing).
android/third_party/recyclerview-fastscroll/src/main/java/com/simplecityapps/recyclerview_fastscroll/views/FastScrollRecyclerView.java