How to get current location in blackberry device? - blackberry

Question

In simulator my gps code work fine. But when I install my app in device I can't get current latitude and longitude.
When I send lat long from simulator it get proper lat long which is send through simulator. I don't know why is not working in device?
I have already enable from Option > Advance option > gps > gps servce and set Location ON.
Is there any other setting for get current location in device?
private boolean currentLocation() {
boolean retval = true;
try {
LocationProvider lp = LocationProvider.getInstance(null);
if (lp != null) {
lp.setLocationListener(new LocationListenerImpl(), interval, 1, 1);
} else {
// GPS is not supported, that sucks!
// Here you may want to use UiApplication.getUiApplication() and post a Dialog box saying that it does not work
retval = false;
}
} catch (LocationException e) {
System.out.println("Error: " + e.toString());
}
return retval;
}
private class LocationListenerImpl implements LocationListener {
public void locationUpdated(LocationProvider provider, Location location) {
if (location.isValid()) {
heading = location.getCourse();
longitude = location.getQualifiedCoordinates().getLongitude();
latitude = location.getQualifiedCoordinates().getLatitude();
altitude = location.getQualifiedCoordinates().getAltitude();
speed = location.getSpeed();
// This is to get the Number of Satellites
String NMEA_MIME = "application/X-jsr179-location-nmea";
satCountStr = location.getExtraInfo("satellites");
if (satCountStr == null) {
satCountStr = location.getExtraInfo(NMEA_MIME);
}
// this is to get the accuracy of the GPS Cords
QualifiedCoordinates qc = location.getQualifiedCoordinates();
accuracy = qc.getHorizontalAccuracy();
}
}

Answer 1

Try this code
Thread thread = new Thread(new Runnable() {
public void run() {
bCriteria = new BlackBerryCriteria();
if (GPSInfo.isGPSModeAvailable(GPSInfo.GPS_MODE_CELLSITE)) {
bCriteria.setMode(GPSInfo.GPS_MODE_CELLSITE);
} else if (GPSInfo.isGPSModeAvailable(GPSInfo.GPS_MODE_ASSIST)) {
bCriteria.setMode(GPSInfo.GPS_MODE_ASSIST);
} else if (GPSInfo
.isGPSModeAvailable(GPSInfo.GPS_MODE_AUTONOMOUS)) {
bCriteria.setMode(GPSInfo.GPS_MODE_AUTONOMOUS);
} else {
bCriteria.setCostAllowed(true);
bCriteria
.setPreferredPowerConsumption(Criteria.POWER_USAGE_LOW);
}
try {
bProvider = (BlackBerryLocationProvider) BlackBerryLocationProvider
.getInstance(bCriteria);
if (bProvider != null) {
bProvider.setLocationListener(new handleGPSListener(),
-1, -1, -1);
try {
bLocation = (BlackBerryLocation) bProvider
.getLocation(60);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
} catch (LocationException lex) {
lex.printStackTrace();
return;
}
}
});
thread.start();
then implement Location Listener in the class
public class handleGPSListener implements LocationListener {
public void locationUpdated(LocationProvider provider, Location location) {
if (location.isValid()) {
}
}
public void providerStateChanged(LocationProvider provider, int newState) {
}
}