private void updateSolution(int state) {
logger.info("Update Solution");
currentState = state;
if ((System.currentTimeMillis() - lastFixTimestamp) > 3000) {
hasFix = false;
}
// locationUpdated(locationManager, locationManager.getLastKnownLocation(provider), true);
if (state == LocationProvider.OUT_OF_SERVICE) {
if (receiverList != null) {
receiverList.receiveStatus(LocationMsgReceiver.STATUS_OFF, 0);
receiverList.receiveMessage(
Locale.get("androidlocationinput.ProviderStopped") /*provider stopped*/);
}
// some devices, e.g. Samsung Galaxy Note will claim LocationProvider.AVAILABLE
// even when there's no fix, so use a timestamp to detect
} else if (state == LocationProvider.TEMPORARILY_UNAVAILABLE || !hasFix) {
if (receiverList != null) {
receiverList.receiveStatus(LocationMsgReceiver.STATUS_NOFIX, numSatellites);
}
} else if (state == LocationProvider.AVAILABLE || hasFix) {
if (receiverList != null) {
receiverList.receiveStatus(LocationMsgReceiver.STATUS_ON, numSatellites);
}
}
}
public void locationUpdated(LocationManager manager, Location location, boolean lastKnown) {
// #debug info
logger.info("updateLocation: " + location);
if (location == null) {
return;
}
hasFix = true;
if (currentState != LocationProvider.AVAILABLE) {
updateSolution(LocationProvider.AVAILABLE);
}
lastFixTimestamp = System.currentTimeMillis();
// #debug debug
logger.debug("received Location: " + location);
pos.latitude = (float) location.getLatitude();
pos.longitude = (float) location.getLongitude();
pos.altitude = (float) location.getAltitude();
pos.course = location.getBearing();
pos.speed = location.getSpeed();
pos.timeMillis = location.getTime();
pos.accuracy = location.getAccuracy();
if (lastKnown) {
pos.type = Position.TYPE_GPS_LASTKNOWN;
} else {
pos.type = Position.TYPE_GPS;
}
receiverList.receivePosition(pos);
// logger.trace("exit locationUpdated(provider,location)");
}
public void onGpsStatusChanged(int state) {
GpsStatus gpsStatus = locationManager.getGpsStatus(null);
if (state == GpsStatus.GPS_EVENT_STOPPED) {
hasFix = false;
numSatellites = 0;
updateSolution(LocationProvider.OUT_OF_SERVICE);
} else if ((System.currentTimeMillis() - lastFixTimestamp) > 3000) {
invalidateFix();
}
if (state == GpsStatus.GPS_EVENT_STARTED) {
// FIXME do what's needed
updateSolution(LocationProvider.AVAILABLE);
}
gpsState = state;
if (state == GpsStatus.GPS_EVENT_SATELLITE_STATUS && gpsStatus != null) {
for (int j = 0; j < 36; j++) {
/** Resetting all the satellites to non locked */
if ((satellites[j] != null)) {
satellites[j].isLocked(false);
}
}
Iterable<GpsSatellite> andSatellites = gpsStatus.getSatellites();
Iterator<GpsSatellite> sat = andSatellites.iterator();
int i = 0;
while (sat.hasNext()) {
GpsSatellite satellite = sat.next();
if (satellites[i] == null) {
satellites[i] = new Satellite();
}
if (i < 36) {
satellites[i].isLocked(satellite.usedInFix());
satellites[i].id = i;
satellites[i].azimut = satellite.getAzimuth();
satellites[i].elev = satellite.getElevation();
satellites[i].snr = (int) satellite.getSnr();
if (satellite.usedInFix()) {
i++;
}
}
}
numSatellites = i;
if (numSatellites > 0) {
receiverList.receiveSatellites(satellites);
}
}
// updateSolution(state);
}
public void close() {
// #debug
logger.trace("enter close()");
// if (locationManager != null){
// locationManager.setLocationListener(null, -1, -1, -1);
// }
if (locationManager != null) {
locationManager.removeUpdates(this);
locationManager.removeGpsStatusListener(this);
locationManager.removeNmeaListener(this);
if (looperThread != null) {
locationLooper.quit();
}
}
locationManager = null;
receiverList.locationDecoderEnd();
// #debug
logger.trace("exit close()");
}
public boolean removeLocationMsgReceiver(LocationMsgReceiver receiver) {
return receiverList.removeReceiver(receiver);
}
public void addLocationMsgReceiver(LocationMsgReceiver receiver) {
receiverList.addReceiver(receiver);
}
/**
* Initializes LocationProvider uses default criteria
*
* @throws Exception
*/
void createLocationProvider() {
logger.trace("enter createLocationProvider()");
if (locationManager == null) {
locationManager =
(LocationManager) MidletBridge.instance.getSystemService(Context.LOCATION_SERVICE);
// try out different locationprovider criteria combinations, the
// ones with maximum features first
for (int i = 0; i <= 3; i++) {
try {
Criteria criteria = new Criteria();
switch (i) {
case 0:
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setAltitudeRequired(true);
criteria.setBearingRequired(true);
criteria.setSpeedRequired(true);
break;
case 1:
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setBearingRequired(true);
criteria.setSpeedRequired(true);
break;
case 2:
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setAltitudeRequired(true);
}
provider = locationManager.getBestProvider(criteria, true);
if (provider != null) {
logger.info("Chosen location manager:" + locationManager);
savedCriteria = criteria;
break; // we are using this criteria
}
} catch (Exception e) {
logger.exception(
Locale.get(
"androidlocationinput.unexpectedExceptioninLocProv") /*unexpected exception while probing LocationManager criteria.*/,
e);
}
}
if (locationManager != null && provider != null) {
try {
locationManager.requestLocationUpdates(provider, 0, 0, this);
locationManager.addGpsStatusListener(this);
locationManager.addNmeaListener(this);
} catch (Exception e) {
logger.fatal("requestLocationUpdates fail: " + e.getMessage());
receiverList.receiveStatus(LocationMsgReceiver.STATUS_SECEX, 0);
locationManager = null;
}
if (locationManager != null) {
// FIXME
updateSolution(LocationProvider.TEMPORARILY_UNAVAILABLE);
}
} else {
receiverList.locationDecoderEnd(
Locale.get("androidlocationinput.nointprovider") /*no internal location provider*/);
// #debug info
logger.info("Cannot create LocationProvider for criteria.");
}
}
// #debug
logger.trace("exit createLocationProvider()");
}
