code: public void hideMenuButton(final boolean animate) {
          if (!isMenuButtonHidden() && !mIsMenuButtonAnimationRunning) {
              mIsMenuButtonAnimationRunning = true;
              if (isOpened()) {
                  close(animate);
                  mUiHandler.postDelayed(new Runnable() {
                      @Override
                      public void run() {
                          hideMenuButtonWithImage(animate);
                      }
                  }, mAnimationDelayPerItem * mButtonsCount);
              } else {
                  hideMenuButtonWithImage(animate);
              }
          }
      }
docs: Makes the {@link FloatingActionButton} to disappear inside the {@link #FloatingActionMenu} and
  sets its visibility to {@link #INVISIBLE}
  
  @param animate if true - plays "hide animation"