.getPackedPositionGroup(expandablePosition);
.getPackedPositionChild(firstExpandablePosition); int fGroupPos = RecyclerViewExpandableItemManager .getPackedPositionGroup(firstExpandablePosition); .getPackedPositionGroup(lastExpandablePosition); .getExpandablePosition(linearLayoutManager.findLastVisibleItemPosition()); int lGroupPos = RecyclerViewExpandableItemManager .getPackedPositionGroup(lastExpandablePosition); show = (lGroupPos == fGroupPos);