code: public int scrollToPage(int pageNumber) {
          Log.d(Log.SUBSYSTEM.LAYOUT, TAG, "scrollToPage pageNumber = %d mPageCount = %d",
                  pageNumber, mPageCount);
  
          if (mSupportScrollByPage &&
                  (mScrollOver || (pageNumber >= 0 && pageNumber <= mPageCount - 1))) {
              scrollToItem(getFirstItemIndexOnPage(pageNumber));
          } else {
              Log.w(TAG, "Pagination is not enabled!");
          }
          return mCurrentItemIndex;
  	}
docs: Scroll to specific page. The final page might be different from the requested one if the
  requested page is larger than the last page. To process the scrolling by pages
  LayoutScroller must be constructed with a pageSize greater than zero.
  @param pageNumber page to scroll to
  @return the new current item after the scrolling processed.