code: public void resume() {
          switch (status) {
              case PLAYING:
                  return;
  
              case STOPPED:
                  play();
                  return;
  
              default:
                  status = Status.PLAYING;
  
                  PlayList pl = getPlaylist();
                  if (pl.isAutoAdvanceEnabled()) {
                      slideHandler.removeCallbacks(moveToNextSlide);
                      slideHandler.postDelayed(moveToNextSlide, pl.getSlideDuration(pl.getCurrentSlide()));
                  }
          }
      }
docs: Resume the slideshow