question: @ Override public void onDetachedFromRecyclerView ( RecyclerView recyclerView ) { super . onDetachedFromRecyclerView ( recyclerView ) ; mAttachedRecyclerViewPool . remove ( recyclerView ) ; }
target:  Implementation of Adapter.onDetachedFromRecyclerView(RecyclerView) <p> Called when this ExpandableRecyclerAdapter is detached from a RecyclerView.