Question

My location listener works when I am using the DDMS controls in the emulator but when I deploy it onto the phone it no longer works. My code is as follows

public class hoosheerAndroidAct extends MapActivity implements LocationListener {
    /** Called when the activity is first created. */
    MapController mc;
    public static MapView gMapView = null;
    GeoPoint p = null;
    static double latitude, longitude;
    MyLocationOverlay myLocationOverlay;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.screen1);

        // Creating and initializing Map
        gMapView = (MapView) findViewById(R.id.mapview);
        p = new GeoPoint((int) (latitude * 1E6),
                (int) (longitude * 1E6));
        gMapView.setSatellite(true);
        gMapView.setBuiltInZoomControls(true);
        mc = gMapView.getController();
        mc.setCenter(p);

        mc.setZoom(11);
        myLocationOverlay = new MyLocationOverlay(this, gMapView);
        gMapView.getOverlays().add(myLocationOverlay);
        list = gMapView.getOverlays();
        list.add(myLocationOverlay);

        LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000L, 5.0f,
                this);

    }

methods implemented for implements LocationListener

public void onLocationChanged(Location location) {
        if (location != null) {
            GeoPoint point = new GeoPoint((int) (location.getLatitude() * 1E6),
                    (int) (location.getLongitude() * 1E6));
            mc.animateTo(point);
            connect("http://api.foursquare.com/v1/venues.json?geolat="
                    + location.getLatitude() + "&geolong="
                    + location.getLongitude());
            Drawable marker = getResources().getDrawable(R.drawable.marker);
            gMapView.getOverlays().add(new SitesOverlay(marker));

        }
    }

    public void onProviderDisabled(String provider) {
        // required for interface, not used
    }

    public void onProviderEnabled(String provider) {
        // required for interface, not used
    }

    public void onStatusChanged(String provider, int status, Bundle extras) {
        // required for interface, not used
    }

    protected boolean isRouteDisplayed() {
        // TODO Auto-generated method stub
        return false;
    }

Is there anything I am missing? 🙁

Answer 1

Google maps will default to network location provider if the GPS is unable to find a signal so that test could return a location without a GPS signal. I would recommend GPS Status as a good free app. The only other thing I can think of is to make sure you have a clear view of the sky.