// Handle location updates from the location manager
public void StartLocationUpdates()
{
Log.Debug(logTag, string.Format("You are about to get location updates via {0}", "LocationManager.GpsProvider"));
LocMgr.RequestLocationUpdates(LocationManager.GpsProvider, 1000, 0, this);
LocMgr.AddNmeaListener(this);
Log.Debug(logTag, "Now sending location updates");
}
protected override Task <Stream> OpenStreamAsync()
{
if (!manager.IsProviderEnabled(LocationManager.GpsProvider))
{
throw new InvalidOperationException("The GPS Location Provider is not enabled");
}
stream = new StringStream();
listener = new Listener();
listener.NmeaMessage += (s, e) => stream?.Append(e);
bool success = manager.AddNmeaListener(listener);
manager.RequestLocationUpdates(LocationManager.GpsProvider, 0, 0f, listener);
return(Task.FromResult <Stream>(stream));
}