/** Shows this floating toolbar. */
 public FloatingToolbar show() {
   List<MenuItem> menuItems = getVisibleAndEnabledMenuItems(mMenu);
   if (!isCurrentlyShowing(menuItems) || mWidthChanged) {
     mPopup.dismiss();
     mPopup.layoutMenuItems(menuItems, mMenuItemClickListener, mSuggestedWidth);
     mShowingTitles = getMenuItemTitles(menuItems);
   }
   refreshCoordinates();
   mPopup.setOverflowDirection(mOverflowDirection);
   mPopup.updateCoordinates(mCoordinates.x, mCoordinates.y);
   if (!mPopup.isShowing()) {
     mPopup.show(mCoordinates.x, mCoordinates.y);
   }
   mWidthChanged = false;
   return this;
 }