Android - using LocationListener with Google Maps v2

Android - using LocationListener with Google Maps v2

import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.OnMapClickListener;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

import android.app.Activity;
import android.content.Context;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;

public class YourActivity extends Activity implements LocationListener {

	GoogleMap googleMap;
	LocationManager locationManager;
	String locationProvider;
	
	@Override
	public void onCreate(Bundle savedInstanceState) {
		
	    super.onCreate(savedInstanceState);
	
	
	    //set the layout
	    setContentView(R.layout.yourlayoutxml);


	    //initialize the map
	    if (this.googleMap == null) {
	       
	    	this.googleMap = ((MapFragment)getFragmentManager().findFragmentById(R.id.map)).getMap();
	       
	        if (this.googleMap != null) {
	        	
	            this.initializeMap();
	        }
	    }
	    
	    
	    //initialize the locaiton manager
	    this.initializeLocationManager();
	}
	
	@Override
	protected void onResume() {
		
		super.onResume();
		
		Log.i("called", "Activity --> onResume");
		
		this.locationManager.requestLocationUpdates(this.locationProvider, 400, 1, this);
	}
	
	@Override
	protected void onPause() {
		
		super.onPause();
		
		Log.i("called", "Activity --> onPause");
		
		this.locationManager.removeUpdates(this);
	}
	
	
	//----------------------------------------
	//	Summary: For initializing the map
	//----------------------------------------
	private void initializeMap() {
		
		//set map type
    		this.googleMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
    		
    		//TODO: other map initialization as needed
	}

	//-------------------------------------------
	//	Summary: initialize location manager
	//-------------------------------------------
	private void initializeLocationManager() {
		
		//get the location manager
		this.locationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
		

		//define the location manager criteria
		Criteria criteria = new Criteria();
		
		this.locationProvider = locationManager.getBestProvider(criteria, false);
		
		Location location = locationManager.getLastKnownLocation(locationProvider);
		
		
		//initialize the location
		if(location != null) {
			
		    onLocationChanged(location);
		}
	}
	
	
	//------------------------------------------
	//	Summary: Location Listener  methods
	//------------------------------------------
	@Override
	public void onLocationChanged(Location location) {
		
		Log.i("called", "onLocationChanged");
		
		
		//when the location changes, update the map by zooming to the location
		CameraUpdate center = CameraUpdateFactory.newLatLng(new LatLng(location.getLatitude(),location.getLongitude()));
		this.googleMap.moveCamera(center);
		
		CameraUpdate zoom=CameraUpdateFactory.zoomTo(15);
    		this.googleMap.animateCamera(zoom);
	}

	@Override
	public void onProviderDisabled(String arg0) {
		
		Log.i("called", "onProviderDisabled");
	}

	@Override
	public void onProviderEnabled(String arg0) {
		
		Log.i("called", "onProviderEnabled");
	}

	@Override
	public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
		
		Log.i("called", "onStatusChanged");
	}
}