CODEWITHSUNDEEP
androidgpslocationmanagerlocationlistener
Plebo13
Plebo13

Reputation: 101

Android LocationManager always returns the same old position

I have a problem with my Android App. I want to receive location updates and wrote following code:

The onCreate:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_maps);
    // Obtain the SupportMapFragment and get notified when the map is ready to be used.
    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
            .findFragmentById(R.id.map);
    mapFragment.getMapAsync(this);

    requestPermission();
    if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 0, this);
        // Define the criteria how to select the location provider -> use
        // default
        Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);

        if (location != null) {
            onLocationChanged(location);
        }
    }

}

The onLocationChanged:

@Override
public void onLocationChanged(Location location) {

    if (mMap != null) {
        setMoveToLocation(location, mMap.getCameraPosition().zoom);
    }

}

And the setMoveToLocation

private void setMoveToLocation(Location location, float zoom) {
    // Add a marker at given location and move the camera
    int lat = (int) (location.getLatitude());
    int lng = (int) (location.getLongitude());
    Log.i("Location", "Lat: " + lat + ", Long: " + lng + " Time: " + location.getTime());
    LatLng pos = new LatLng(lat, lng);
    mMap.addMarker(new MarkerOptions().position(pos).title("Your position"));
    Log.i("Zoom", "Zoom: " + zoom);
    mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(pos, zoom));
}

See the output: Log output

It is always the same wrong position, I am not located at 51,7! GPS is definitely truned on, I receive the relevant notification and other apps like Google Maps or Here are working properly. I am using a Huawei Honor 7 with Android 6.0.

Any ideas?

Thanks in advance, Plebo

Upvotes: 0

Views: 656

Answers (1)

Wukash
Wukash

Reputation: 666

You are casting latitude and longitude to int:

int lat = (int) (location.getLatitude());
int lng = (int) (location.getLongitude());

and since latitude and longitude are double they are casted to 51 and 7 respectively

Upvotes: 2

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