Google Maps for Flutter-拖动后获取标记的新位置 [英] Google Maps for Flutter - Get new position of marker after dragging

问题描述

我想使用Google Google Maps for Flutter 在Flutter中创建位置选择器标记.通过创建可拖动选项设置为true的标记，可以创建可拖动标记.使用以下代码段.

I want to create a location picker in flutter using google Google Maps for Flutter and it's marker. It's possible to create a dragable marker by creating a marker with dragable option set to true. Using the following code segment.

Widget _buildMap(BuildContext context) {
  return GoogleMap(
    options: GoogleMapOptions(
      cameraPosition: CameraPosition(
        target: LatLng(7.2906, 80.6337),
        zoom: 7.0,
      ),
      compassEnabled: true,
    ),
    onMapCreated: (controller) {
      _mapController = controller;
      controller.addMarker(
        MarkerOptions(
          draggable: true,
          flat: false,
          position: LatLng(7.2906, 80.6337),
        ),
      );
    },
  );
}

但是在拖动标记后，我找不到找到标记的新位置的方法.我尝试通过引用MapController的markers属性来获取标记的新位置，但是它返回了标记的初始位置.

But I can't find a way to get the new location of the marker after dragging the marker. I tried to get the new location of the marker by referring to markers attribute of the MapController but it returns the initial location of the marker.

_mapController.markers.forEach((marker) {
  print("Pos: " + marker.options.position.toString())
});

// Prints "Pos: LatLng[7.2906, 80.63369999999998]"

我在这里做错了什么，还是有另一种方法来完成此用例?谢谢.

What am I doing wrong here or is there another way to accomplish this use case? Thank you.

推荐答案

该软件包是开发人员预览的版本0.0.3.直到达到1.0，才考虑将其用于生产工作.同时，您可能会提出问题，以将具体的优先事项告知flutter团队.

That package is a developers preview, version 0.0.3. Don't consider it for production work until it hits 1.0. In the meanwhile, you might file a issue to inform the flutter team of your specific priorities.

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