public override StartCommandResult OnStartCommand(Intent intent, [GeneratedEnum] StartCommandFlags flags, int startId)
{
this.serviceLog.Value = new LogFile(this, "service.log", DateTime.UtcNow.AddDays(-2));
this.handler = new HandlerThread("GPSHandler");
this.handler.Start();
this.trackSegments.Value = readGpx(Preferences.LoadTrackFileName(this));
logDebug(LogLevel.Verbose, trackSegments.Value.Count.ToString() + " segs, with "
+ trackSegments.Value.Select(it => it.TrackPoints.Count()).Sum() + " points");
#if MOCK
this.locationManager = new LocationManagerMock(trackSegments.Value.First().TrackPoints.EndPoint);
#else
this.locationManager = (LocationManager)GetSystemService(Context.LocationService);
#endif
loadPreferences();
{ // start tracking
this.lastAlarmAt = 0;
this.statistics.Reset();
locationManager.RequestLocationUpdates(LocationManager.GpsProvider, 0, 0, this, this.handler.Looper);
}
// push Android to update us with gps positions
getLastKnownPosition();
this.signalTimer.Value = new SignalTimer(logDebug,
() => prefs.Value.NoGpsAlarmFirstTimeout,
() => prefs.Value.NoGpsAlarmAgainInterval,
() => alarms.Go(Alarm.PositiveAcknowledgement),
() =>
{
logDebug(LogLevel.Verbose, "gps off");
MainReceiver.SendAlarm(this, Message.NoSignalText);
alarms.Go(Alarm.GpsLost);
// weird, but RequestLocationUpdates does not force GPS provider to actually start providing updates
// thus such try -- we will see if requesting single update will start it
getLastKnownPosition();
// this gets OK location but is to weak to force GPS to start updating, if above will not work
// we would have to manually request update one after another and rework alarms
//this.locationManager.RequestSingleUpdate(LocationManager.GpsProvider, this, this.handler.Looper);
});
this.receiver = ServiceReceiver.Create(this);
receiver.UpdatePrefs += Receiver_UpdatePrefs;
receiver.InfoRequest += Receiver_InfoRequest;
logDebug(LogLevel.Info, "service started (+testing log)");
return(StartCommandResult.Sticky);
}
private void Receiver_InfoRequest(object sender, EventArgs e)
{
logLocal(LogLevel.Verbose, "Received info request");
if (this.signalTimer.Value.HasGpsSignal)
{
MainReceiver.SendDistance(this, statistics.SignedDistance);
}
else
{
MainReceiver.SendAlarm(this, Message.NoSignalText);
}
}
