code: public void startScroll(float startValue, float finalValue) {
          finished = false;
          startRtc = SystemClock.elapsedRealtime();
  
          this.startValue = startValue;
          this.finalValue = finalValue;
          currValue = startValue;
      }
docs: Starts an animation from startValue to finalValue.
  
  @param startValue Start value
  @param finalValue Final value
  @see android.widget.Scroller#startScroll(int, int, int, int)