code: public Crossfader withCanSlide(boolean canSlide) {
          this.mCanSlide = canSlide;
          if (mCrossFadeSlidingPaneLayout != null) {
              mCrossFadeSlidingPaneLayout.setCanSlide(mCanSlide);
          }
          return this;
      }
docs: Allow the panel to slide
  
  @param canSlide
  @return