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);
}
}
}
/**
* 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()");
}
