code: public void setSplitterPosition(int position) {
          mSplitterPosition = clamp(position, 0, Integer.MAX_VALUE);
          mSplitterPositionPercent = -1;
          remeasure();
          notifySplitterPositionChanged(false);
      }
docs: Sets the current position of the splitter in pixels.
  
  @param position the desired position of the splitter