Windows Phone 8 Geolocator異常

Question

嗨，我是WP開發的新手。 我想找到用戶當前的郵政編碼或郵政編碼。 所以我有以下代碼。 問題是這行d.zip = position.CivicAddress.PostalCode; 總是給對象引用未設置為對象異常的實例。但是我能夠很好地獲得緯度和經度。 我也嘗試過position.CivicAddresss.City，但仍然是相同的例外。 請幫忙。

  async void Button_Click_1(object sender, RoutedEventArgs e)
           {
               Data d = new Data();
               Geolocator locator = new Geolocator();
               try
               {
                   Geoposition position = await locator.GetGeopositionAsync();
                   d.zip = position.CivicAddress.PostalCode;
                   d.Latitude = position.Coordinate.Latitude;
                   d.Longitude = position.Coordinate.Longitude;
                   MessageBox.Show(d.zip);
               }
               catch (Exception ex)
               {
                   MessageBox.Show(ex.Message);
               }
           }

    public class Data
    {
        public string zip { get; set; }
        public double Latitude { get; set; }
        public double Longitude { get; set; }
    }

Answer 1

我相信GeoPosition.CivicAddress已棄用。 您需要使用MapLocationFinder來獲取地址信息。

async void Button_Click_1(object sender, RoutedEventArgs e)
{
    Data d = new Data();
    Geolocator locator = new Geolocator();
    try
    {
        Geoposition position = await locator.GetGeopositionAsync();

        // Get address data with MapLocationFinder
        var result = await MapLocationFinder.FindLocationsAtAsync(position.Coordinate.Point);
        if (result.Status == MapLocationFinderStatus.Success)
        {
            var address = result.Locations[0].Address;
            var zip = address.PostCode;
            d.zip = zip;
        }

        // These are deprecated as well. 
        // Use position.Coordinate.Point.Position.Latitude and
        // position.Coordinate.Point.Position.Longitude

        d.Latitude = position.Coordinate.Latitude;
        d.Longitude = position.Coordinate.Longitude;
        MessageBox.Show(d.zip);
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message);
    }
}

public class Data
{
    public string zip { get; set; }
    public double Latitude { get; set; }
    public double Longitude { get; set; }
}