import com.google.android.gms.maps.GoogleMap not working

package in.wptrafficanalyzer.locationingooglemap;

import android.app.Dialog;

import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;

import android.support.v4.app.FragmentActivity;

import android.widget.TextView;


import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.makemyapp.ss.R;


public class MainActivity extends FragmentActivity implements LocationListener 


{
	
        GoogleMap googleMap;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.locateme);
		
		// Getting Google Play availability status
        int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getBaseContext());

        // Showing status
        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	
		
			// Getting reference to the SupportMapFragment of activity_main.xml
			
        	SupportMapFragment fm = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
			
			// Getting GoogleMap object from the fragment
			
			googleMap = fm.getMap();
			
			// Enabling MyLocation Layer of Google Map
			
			googleMap.setMyLocationEnabled(true);				
					
			
			 // Getting LocationManager object from System Service LOCATION_SERVICE
	        LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
	
	        // Creating a criteria object to retrieve provider
	        Criteria criteria = new Criteria();
	
	        // Getting the name of the best provider
	        String provider = locationManager.getBestProvider(criteria, true);
	
	        // Getting Current Location
	        Location location = locationManager.getLastKnownLocation(provider);
	
	        if(location!=null){
	                onLocationChanged(location);
	        }
	
	        locationManager.requestLocationUpdates(provider, 20000, 0, this);
        }
		
	}
	

	@Override
	public void onLocationChanged(Location location) {
		
		TextView tvLocation = (TextView) findViewById(R.id.tv_location);
		
		// Getting latitude of the current location
		double latitude = location.getLatitude();
		
		// Getting longitude of the current location
		double longitude = location.getLongitude();		
		
		// Creating a LatLng object for the current location
		LatLng latLng = new LatLng(latitude, longitude);
		
		// Showing the current location in Google Map
		googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
		
		// Zoom in the Google Map
		googleMap.animateCamera(CameraUpdateFactory.zoomTo(15));		
		
		
		// Setting latitude and longitude in the TextView tv_location
	//	tvLocation.setText("Latitude:" +  latitude  + ", Longitude:"+ longitude );		
				
	}

	@Override
	public void onProviderDisabled(String provider) 
	
	{
		// TODO Auto-generated method stub		
	}

	@Override
	public void onProviderEnabled(String provider) 
	{
		// TODO Auto-generated method stub		
	}

	@Override
	public void onStatusChanged(String provider, int status, Bundle extras) {
		// TODO Auto-generated method stub		
	}
	
	
	

}