c# - 如何从 Windows Phone 8.1 获取当前国家/地区位置以及可能的国家/地区代码

Question

如何从 Windows Phone 8.1 获取当前国家/地区位置以及可能的国家/地区代码？我这样做了，但 FindLocationsAsync 抛出异常“值不在预期范围内”

private async void LocateMe()
    {
        Geolocator GeoLoc = new Geolocator();
        GeoLoc.DesiredAccuracyInMeters = 50;

        try
        {
            Geoposition GeoPosition = await GeoLoc.GetGeopositionAsync();

            MapLocationFinderResult result = await MapLocationFinder.FindLocationsAsync("", GeoPosition.Coordinate.Point, 5);

            if (result.Status == MapLocationFinderStatus.Success)
            {
                foreach (MapLocation mapLocation in result.Locations)
                {
                    string strCountryCode = mapLocation.Address.CountryCode;
                }
            }
        }
        catch(Exception e)
        {
            System.Diagnostics.Debug.WriteLine(e.Message);
        }
    }

Answer 1

它叫做反向地理定位试试这个

 var geolocator = new Geolocator();
            geolocator.DesiredAccuracyInMeters = 100;
            Geoposition position = await geolocator.GetGeopositionAsync();

             //reverse geocoding
            BasicGeoposition myLocation = new BasicGeoposition
            {
                Longitude = position.Coordinate.Longitude,
                Latitude = position.Coordinate.Latitude
            };
            Geopoint pointToReverseGeocode = new Geopoint(myLocation);

            MapLocationFinderResult result = await MapLocationFinder.FindLocationsAtAsync(pointToReverseGeocode);

             //here also it should be checked if there result isn't null and what to do in such a case
            string country = result.Locations[0].Address.Region;