Exemplo n.º 1
0
 public void saveScrollPosition() {
   if (crumb == null) return;
   crumb.setScrollPosition(
       ((GridLayoutManager) mRecyclerView.getLayoutManager()).findFirstVisibleItemPosition());
   final View firstChild = mRecyclerView.getChildAt(0);
   if (firstChild != null) crumb.setScrollOffset((int) firstChild.getY());
 }
Exemplo n.º 2
0
 private void restoreScrollPosition() {
   if (crumb == null) return;
   final int scrollY = crumb.getScrollPosition();
   if (scrollY > -1 && scrollY < getAdapter().getItemCount()) {
     ((GridLayoutManager) mRecyclerView.getLayoutManager())
         .scrollToPositionWithOffset(scrollY, crumb.getScrollOffset());
   }
 }