docs: protected void resetStickyFooterSelection() {
          if (mStickyFooterView instanceof LinearLayout) {
              for (int i = 0; i < (mStickyFooterView).getChildCount(); i++) {
                  (mStickyFooterView).getChildAt(i).setActivated(false);
                  (mStickyFooterView).getChildAt(i).setSelected(false);
              }
          }
      }