public void OnGpsStatusChanged(GpsEvent e) // GpsStatus.IListener
        {
            if (locationManager != null)
            {
                gpsStatus = locationManager.GetGpsStatus(gpsStatus);

                switch (e)
                {
                case GpsEvent.FirstFix:
                    status = IDeviceGpsStatus.FirstFix;
                    DeviceDebugAndroid.LogToFileMethodStatic("gps: " + status.ToString());
                    break;

                case GpsEvent.SatelliteStatus:
                    if (gpsStatus != null)
                    {
                        gpsSatellitesVisible       = 0;
                        gpsSatellitesUsedInFix     = 0;
                        gpsSatellitesWithEphemeris = 0;
                        gpsSatellitesWithAlmanac   = 0;

                        var satellites = gpsStatus.Satellites;
                        if (satellites != null)
                        {
                            Java.Util.IIterator iterator = satellites.Iterator();
                            {
                                while (iterator.HasNext)
                                {
                                    gpsSatellitesVisible++;

                                    var s = (GpsSatellite)iterator.Next();
                                    if (s.UsedInFix())
                                    {
                                        gpsSatellitesUsedInFix++;
                                    }
                                    if (s.HasEphemeris)
                                    {
                                        gpsSatellitesWithEphemeris++;
                                    }
                                    if (s.HasAlmanac)
                                    {
                                        gpsSatellitesWithAlmanac++;
                                    }
                                }
                            }

                            if (gpsSatellitesUsedInFix > 3)
                            {
                                status = IDeviceGpsStatus.Connected;
                            }
                        }
                    }
                    break;

                case GpsEvent.Started:
                    status = IDeviceGpsStatus.Started;
                    DeviceDebugAndroid.LogToFileMethodStatic("gps: " + status.ToString());
                    break;

                case GpsEvent.Stopped:
                    status = IDeviceGpsStatus.Stopped;
                    DeviceDebugAndroid.LogToFileMethodStatic("gps: " + status.ToString());
                    break;
                }

                if (listener != null)
                {
                    listener.OnGpsStatusUpdate();
                }
            }
        }
 public void OnProviderEnabled(string provider) // ILocationListener
 {
     status = IDeviceGpsStatus.Enabled;
     DeviceDebugAndroid.LogToFileMethodStatic(status.ToString());
 }