updateAnchorY method

Future<bool> updateAnchorY (
  1. double anchorY
)

更新位置绘制时图片的锚点y, Android独有

anchorY 用位置绘制时图片的锚点y，图片左上角为(0.0f,0.0f),向右向下为正

Implementation

Future<bool> updateAnchorY(double anchorY) async {
  bool ret = await BMFMapDispatcherFactory.instance.overlayDispatcher
      .updateGroundMember(this.methodChannel,
          {'id': this.Id, 'member': 'anchorY', 'value': anchorY});

  if (ret) {
    this.anchorY = anchorY;
  }

  return ret;
}