docs: @Override
      public int getItemViewType(int position, @NonNull File file) {
          if (isMultimedia(file)) {
              if (isCheckable(file)) {
                  return VIEWTYPE_IMAGE_CHECKABLE;
              } else {
                  return VIEWTYPE_IMAGE;
              }
          } else {
              return super.getItemViewType(position, file);
          }
      }