gps not getting user location

[amrut sabade]

Hii everybody i am tring to get the current userlocation(latitude and longitude ) bt onLocationChanged method is not getting called
but other method like public void onProviderDisabled(String provider) please help what can be the problem ?
i have class

package com.javacodegeeks.android.lbs;

import android.app.Activity;
import android.os.Bundle;

 import android.app.Activity;  

 import android.content.Context;  

 import android.location.Location;  

 import android.location.LocationListener;  

 import android.location.LocationManager;  

 import android.os.Bundle;  

 import android.view.View;  

 import android.view.View.OnClickListener;  

 import android.widget.Button;  

 import android.widget.Toast;  

    

 public class LbsGeocodingActivity extends Activity {  

        

     private static final long MINIMUM_DISTANCE_CHANGE_FOR_UPDATES = 1; // in Meters  

     private static final long MINIMUM_TIME_BETWEEN_UPDATES = 1000; // in Milliseconds  

        

     protected LocationManager locationManager;  

        

     protected Button retrieveLocationButton;  

        

     @Override 

     public void onCreate(Bundle savedInstanceState) {  

            

         super.onCreate(savedInstanceState);  

         setContentView(R.layout.main);  

    

         retrieveLocationButton = (Button) findViewById(R.id.retrieve_location_button);  

            

         locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);  

            

         locationManager.requestLocationUpdates(  

                 LocationManager.GPS_PROVIDER,   

                 MINIMUM_TIME_BETWEEN_UPDATES,   

                 MINIMUM_DISTANCE_CHANGE_FOR_UPDATES,  

                 new MyLocationListener()  

         );  

            

     retrieveLocationButton.setOnClickListener(new OnClickListener() {  

             @Override 

             public void onClick(View v) {  

                 showCurrentLocation();  

             }  

     });          

            

     }      

    

     protected void showCurrentLocation() {  

    

         Location location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);  

    

         if (location != null) {  

             String message = String.format(  

                     "Current Location \n Longitude: %1$s \n Latitude: %2$s",  

                     location.getLongitude(), location.getLatitude()  

             );  

             Toast.makeText(LbsGeocodingActivity.this, message,  

                     Toast.LENGTH_LONG).show();  

         }  

    

     }     

    

     private class MyLocationListener implements LocationListener {  

    

         public void onLocationChanged(Location location) {  

             String message = String.format(  

                     "New Location \n Longitude: %1$s \n Latitude: %2$s",  

                     location.getLongitude(), location.getLatitude()  

             );  

             Toast.makeText(LbsGeocodingActivity.this, message, Toast.LENGTH_LONG).show();  

         }  

    

         public void onStatusChanged(String s, int i, Bundle b) {  

             Toast.makeText(LbsGeocodingActivity.this, "Provider status changed",  

                     Toast.LENGTH_LONG).show();  

         }  

    

         public void onProviderDisabled(String s) {  
             Toast.makeText(LbsGeocodingActivity.this,  

                     "Provider disabled by the user. GPS turned off",  

                     Toast.LENGTH_LONG).show();  

         }  

    

         public void onProviderEnabled(String s) {  

             Toast.makeText(LbsGeocodingActivity.this,  

                     "Provider enabled by the user. GPS turned on",  

                     Toast.LENGTH_LONG).show();  

         }
     }
 }

[Hardik Trivedi]

You must have GPRS or wifi enabled for this.

Try using NETWORK_PROVIDER.

and you can use getBestProvider(Criteria) method too.

[Peter Johnson]

Do you have the ACCESS_FINE_LOCATION permission set in your manifest?