code: public final void addItem(final int id, @StringRes final int titleId) {
          Item item = new Item(getContext(), id, titleId);
          adapter.add(item);
          adaptGridViewHeight();
      }
docs: Adds a new item to the bottom sheet.
  
  @param id
  The id of the item, which should be added, as an {@link Integer} value. The id must
  be at least 0
  @param titleId
  The resource id of the title of the item, which should be added, as an {@link
  Integer} value. The resource id must correspond to a valid string resource