docs: @Override
  	protected boolean onSingleTapUpHelper(final int index, final Item item, final MapView mapView) {
  		if (this.mFocusItemsOnTap) {
  			this.mFocusedItemIndex = index;
  			mapView.postInvalidate();
  		}
  		return this.mOnItemGestureListener.onItemSingleTapUp(index, item);
  	}