Current Location

public class MainActivity extends Activity implements LocationListener {

     private LocationManager locationManager;


        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);


            Button bt=(Button) findViewById(R.id.btn1);

            bt.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                    // TODO Auto-generated method stub

                     // getting GPS status
                    boolean isGPSEnabled = locationManager
                            .isProviderEnabled(LocationManager.GPS_PROVIDER);




                     if(!isGPSEnabled)
                    {
                          AlertDialog.Builder alertDialog = new AlertDialog.Builder(MainActivity.this);

                          // Setting Dialog Title
                          alertDialog.setTitle("GPS settings");

                          // Setting Dialog Message
                          alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");

                          // On pressing Settings button
                          alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
                              public void onClick(DialogInterface dialog,int which) {
                                  Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                                  startActivity(intent);
                              }
                          });

                          // on pressing cancel button
                          alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                              public void onClick(DialogInterface dialog, int which) {
                              dialog.cancel();
                              }
                          });

                          // Showing Alert Message
                          alertDialog.show();

                    }
                     else
                     {
                         if (locationManager != null) {
                           Location location = locationManager
                                   .getLastKnownLocation(LocationManager.GPS_PROVIDER);
                           if (location != null) {
                               double latitude = location.getLatitude();
                               double longitude = location.getLongitude();
                           Toast.makeText(getApplication(),"latitude: "+ latitude +" longitude: "+longitude, Toast.LENGTH_LONG).show();

                           }
                     }
                }
                     }
            });

        }


        @Override
        public void onLocationChanged(Location location) {
            // TODO Auto-generated method stub

        }


        @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

        }

}