/// <summary>
/// Notifies the location update.
/// </summary>
/// <param name="locationArgs">Location arguments.</param>
protected void NotifyLocationUpdate(LocationUpdatedEventArgs locationArgs)
{
var location = locationArgs.Location;
var newLocation = new Location()
{
Longitude = location.Longitude,
Latitude = location.Latitude,
Timestamp = DateTime.Now,
};
CurrentLocation = newLocation;
Locations.Add(newLocation);
LocationUpdate?.Invoke(this, newLocation);
// stop any more location updates
LocationManager.Stop();
LocationLoading = false;
}
private bool BeginListening()
{
if (LocationUpdate != null)
{
try
{
var request = new GeolocationRequest(GeolocationAccuracy.High, new TimeSpan(0, 0, 2));
// This can't be called from a background thread, bug https://github.com/xamarin/Essentials/issues/634
var task = Geolocation.GetLocationAsync(request);
task.ContinueWith(x =>
{
try
{
if (x.IsCompleted)
{
var location = x.Result;
if (location == null)
{
_location.Update("Timed out getting location");
Alert?.Invoke(this, new AlertEventArgs(true));
}
else
{
_location.Update(location.Latitude,
location.Longitude,
location.Accuracy,
location.Altitude,
location.Speed,
location.Course,
location.Timestamp);
Alert?.Invoke(this, new AlertEventArgs(false));
}
}
}
catch {
_location.Update("Unknown error");
Alert?.Invoke(this, new AlertEventArgs(true));
}
}, TaskScheduler.FromCurrentSynchronizationContext());
}
catch (FeatureNotSupportedException e)
{
// Handle not supported on device exception
_location.Update(string.Format("{0}", e.Message));
Alert?.Invoke(this, new AlertEventArgs(true));
}
catch (PermissionException e)
{
// Handle permission exception
_location.Update(string.Format("{0}", e.Message));
Alert?.Invoke(this, new AlertEventArgs(true));
}
catch (Exception e)
{
// Unable to get location
_location.Update(string.Format("{0}", e.Message));
Alert?.Invoke(this, new AlertEventArgs(true));
}
LocationUpdate?.Invoke(this, new LocationEventArgs(_location));
}
return(true);
}
private void reader_LocationUpdated(object sender, ClientModels.EDLog e)
{
LocationUpdate?.Invoke(this, e.Location);
}
