code: private boolean notifyOnItemLongClicked(@NonNull final View view, final int position,
                                              final long id) {
          return itemLongClickListener != null &&
                  itemLongClickListener.onItemLongClick(this, view, position, id);
      }
docs: Notifies the listener, which has been registered to be notified, when any item has been
  long-clicked, about an item being long-clicked.
  
  @param view
  The view within the expandable grid view, which has been long-clicked, as an instance
  of the class {@link View}. The view may not be null
  @param position
  The position of the item, which has been long-clicked, as an {@link Integer} value
  @param id
  The id of the item, which has been long-clicked, as a {@link Long} value
  @return True, if the long-click has been handled by the listener, false otherwise