title: onLocationChanged doesn't work?
body: <p>on LocationChanged listener don't work.</p>
  
  <pre><code>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.widget.Toast;
  
  public class SimpleLocation extends Activity implements LocationListener {
      private LocationManager locationManager;
      private String provider;
  
      /** Called when the activity is first created. */
      @Override
      public void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          // setContentView(R.layout.main);
          // Get the location manager
          locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
          // Define the criteria how to select the locatioin provider -&gt; use
          // default
          Criteria criteria = new Criteria();
          provider = locationManager.getBestProvider(criteria, false);
          Location location = locationManager.getLastKnownLocation(provider);
  
          // Initialize the location fields
          if (location != null) {
              System.out.println("Provider " + provider + " has been selected.");
              int lat = (int) (location.getLatitude());
              int lng = (int) (location.getLongitude());
              Toast.makeText(getApplicationContext(),
                      "Lat:" + lat + " Lng:" + lng, Toast.LENGTH_LONG).show();
          } else {
              Toast.makeText(getApplicationContext(), "No Value",
                      Toast.LENGTH_LONG).show();
          }
      }
  
      /* Request updates at startup */
      @Override
      protected void onResume() {
          super.onResume();
          locationManager.requestLocationUpdates(provider, 400, 1,
                  (LocationListener) this);
      }
  
      /* Remove the locationlistener updates when Activity is paused */
      @Override
      protected void onPause() {
          super.onPause();
          locationManager.removeUpdates((LocationListener) this);
      }
  
      public void onLocationChanged(Location location) {
          int lat = (int) (location.getLatitude());
          int lng = (int) (location.getLongitude());
          Toast.makeText(getApplicationContext(),
                  "onLocationChanged Lat:" + lat + " Lng:" + lng,
                  Toast.LENGTH_LONG).show();
      }
  
      public void onStatusChanged(String provider, int status, Bundle extras) {
          // TODO Auto-generated method stub
  
      }
  
      public void onProviderEnabled(String provider) {
          Toast.makeText(this, "Enabled new provider " + provider,
                  Toast.LENGTH_SHORT).show();
  
      }
  
      public void onProviderDisabled(String provider) {
          Toast.makeText(this, "Disabled provider " + provider,
                  Toast.LENGTH_SHORT).show();
      }
  
  }
  </code></pre>