private void OnWalkingPositionChanged(object sender, WalkingEventArgs e)
 {
     Dispatcher.BeginInvoke(() =>
     {
         if (_gpsPushpin != null)
         {
             _gpsPushpin.Location = LocationAssistant.Instance.LastKnownLocation.AsGeoCoordinate();
         }
     });
 }
 private void OnWalkingPositionChanged(object sender, WalkingEventArgs e)
 {
     Dispatcher.BeginInvoke(() =>
     {
         if (_gpsPushpin != null)
         {
             _gpsPushpin.Location = LocationAssistant.Instance.LastKnownLocation.AsGeoCoordinate();
         }
     });
 }