docs: public void restartGesture() {
      if (!mGestureInProgress) {
        return;
      }
      stopGesture();
      for (int i = 0; i < MAX_POINTERS; i++) {
        mStartX[i] = mCurrentX[i];
        mStartY[i] = mCurrentY[i];
      }
      startGesture();
    }