Location is null on device

Question

I am testing my app on a real device and getting a null location when the GPS is on. When I test on the emulator with dummy coordinates it works fine. What is wrong?

locationManager = (LocationManager) context.getSystemService(context.LOCATION_SERVICE);
listener = new MyLocationListener();
viaGps = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
viaNetwork = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!viaGps && !viaNetwork) {
    tracking = false;
} else {
    if (viaGps) {
        Log.d("", "gps is on");
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, listener);
        location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
    }else if (viaNetwork) {
        Log.d("", "network is on");
        locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, listener);
        location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
    }
    if (location == null) {
        Log.d("", "location not fouond");
    }

last known location can be null, but you should get location fix in LocationListener, — Yasitha Waduge, Mar 11 '13 at 14:40
@vmerror but why is that. i mean in the emulator before giving dummy coordinates the last known location could be null and it makes sense also. but in a real device there are real coordinates available.then why my last known location is null — Usman Riaz, Mar 11 '13 at 14:54
Answer can be found here: http://stackoverflow.com/a/12238356/1199267 — Yasitha Waduge, Mar 11 '13 at 15:10
There aren't always real coordinates available. GPS isn't always on, and you don't always have a valid GPS fix. — David Wasser, Mar 11 '13 at 15:14

score 0 · Answer 1 · edited May 23 '17 at 12:04

0

You need a Location listener:

Follow the documentation

Update:

You can also try that easy way: What is the simplest and most robust way to get the user's current location in Android?

edited May 23 '17 at 12:04

Community

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answered Mar 11 '13 at 14:40

madlymad

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i already register a location listener named locationListener. – Usman Riaz Mar 11 '13 at 14:52
do you get through the documentation? see my update for an other implementation. – madlymad Mar 11 '13 at 15:30

score 0 · Answer 2 · edited Mar 11 '13 at 15:24

0

Try using this , it solved my problem

  double latitude = gps.getLatitude();
  double longitude = gps.getLongitude();

Also check your permission

  <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
  <uses-permission android:name="android.permission.INTERNET"></uses-permission>

edited Mar 11 '13 at 15:24

madlymad

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answered Mar 11 '13 at 15:09

MRX

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Location is null on device

2 Answers2