Cannot resolve method requestLocationUpdates

Question

I'm trying to call method requestLocationUpdates, but eventually i get an error message "cannot resolve method ". I think it's because of "this" argument, but i'm not sure. I imported LocationListener, but it didn't help me.

Here is my part of code:

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

public class MainMap extends ActionBarActivity implements LocationListener {

    private void addMarker(){
        int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getBaseContext());
        if(status!= ConnectionResult.SUCCESS){ // Google Play Services are not available

            int requestCode = 10;
            Dialog dialog = GooglePlayServicesUtil.getErrorDialog(status, this, requestCode);
            dialog.show();

        }else { // Google Play Services are available
            googleMap.setMyLocationEnabled(true);
            LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
            Criteria criteria = new Criteria();
            String provider = locationManager.getBestProvider(criteria, true);
            Location location = locationManager.getLastKnownLocation(provider);

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

            // troubles here
            locationManager.requestLocationUpdates(provider, 20000, 10, this);

        }
    }

    @Override
    public void onLocationChanged(Location location) {
        double latitude = location.getLatitude();
        double longitude = location.getLongitude();
        LatLng latLng = new LatLng(latitude, longitude);
        googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
        googleMap.animateCamera(CameraUpdateFactory.zoomTo(20));
    }

}

Answer 1

You are importing LocationListener from the wrong package. You seem to be importing it as:

com.google.android.gms.location.LocationListener

but the requestLocationUpdates (String provider, long minTime, float minDistance, LocationListener listener) method the last argument of this type:

android.location.LocationListener

as you can see here.

Changing the import statements to load android.location.LocationListener should fix the issue.