public static TranslationLocation GetTranslationInfo(string result)
{
TranslationLocation translation = null;
try
{
translation = JSON.parse <TranslationLocation>(result);
}
catch (Exception)
{
}
return(translation);
}
void ageol_PositionChanged(AGeolocator sender, APositionChangedEventArgs args)
{
this.Dispatcher.RunAsync(CoreDispatcherPriority.High, async() =>
{
CurrentLocation = args.LngLat;
try
{
//update current location
if (this.currentViewType != null && this.currentViewType == typeof(MapView))
{
AMarker marker = new AMarker();
marker.LngLat = this.CurrentLocation;
marker.IconURI = new Uri("http://api.amap.com/webapi/static/Images/marker_sprite.png ");
ATip tip = new ATip();
tip.Title = "当前位置";
tip.ContentText = "Current Position";
marker.TipFrameworkElement = tip;
this.map.Children.Clear();
this.map.Children.Add(marker);
marker.OpenTip();
}
if (DateTime.Now.ToFileTime() - lastUpdate.ToFileTime() < 30000000)
{
return;
}
//convert location to sogo location
string points = string.Format("{0},{1}", CurrentLocation.LngX, CurrentLocation.LatY);
string url = SogoMapService.GetTranslationInfoURL(points);
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, url);
HttpResponseMessage response = await httpClient.SendAsync(request,
HttpCompletionOption.ResponseHeadersRead);
string result = "";
using (Stream responseStream = await response.Content.ReadAsStreamAsync())
{
int read = 0;
byte[] responseBytes = new byte[1000];
do
{
read = await responseStream.ReadAsync(responseBytes, 0, responseBytes.Length);
string tmp = System.Text.Encoding.GetEncoding("GBK").GetString(responseBytes, 0, read);
result += tmp;
}while (read != 0);
}
TranslationLocation translation = SogoMapService.GetTranslationInfo(result);
if (translation != null && translation.response.points.Length == 1)
{
this.CurrentSogoLongitude = translation.response.points[0].longitude;
this.CurrentSogoLatitude = translation.response.points[0].latitude;
}
}
catch
{
}
//check whether need alert
this.CheckReminder();
this.lastUpdate = DateTime.Now;
});
}