docs: public boolean onItemClick(IDrawerItem selectedDrawerItem) {
          //We only need to clear if the new item is selectable
          if (selectedDrawerItem.isSelectable()) {
              //crossfade if we are cross faded
              if (mCrossFader != null) {
                  if (mCrossFader.isCrossfaded()) {
                      mCrossFader.crossfade();
                  }
              }
              //update everything
              setSelection(selectedDrawerItem.getIdentifier());
  
              return false;
          } else {
              return true;
          }
      }