code: public void animateClose() {
          prepareContent();
  
          if (onDrawerScrollListener != null) {
              onDrawerScrollListener.onScrollStarted();
          }
  
          animateClose(vertical ? viewHandle.getTop() : viewHandle.getLeft());
  
          if (onDrawerScrollListener != null) {
              onDrawerScrollListener.onScrollEnded();
          }
      }
docs: Closes the drawer with an animation.
  
  @see #animateToggle()
  @see #animateOpen()
  @see #toggle()
  @see #open()
  @see #close()