public TouchActionBuilder pointerDown(WebElement element, int x, int y) {
    Preconditions.checkState(!isDown);

    Map<String, Object> params = getTouchParameters(element, x, y);
    addAction(TouchActionName.POINTER_DOWN, params);

    isDown = true;
    return this;
  }
Places pointer down at an offset from the top left corner of the specified WebElement
@param element WebElement to place pointer relative to
@param x x-offset from top left
@param y y-offset from top left
@return this
selendroid-client/src/main/java/io/selendroid/client/TouchActionBuilder.java