Android Proximity alert doesn't get fired

Question

Hi, this is my very first question:

I'm trying to configure proximity alerts that will be feed from a Database and webservice provider; but I have a problem configuring a simple proximity alert for testing. I manage to create the alert but it never gets fired, I'm only trying in the emulator for now and don´t know if I need some extra code to trigger the alerts.

I've read somewhere that the GPS provider to disabled so the network provider can be used in order to trigger the alerts on the emulator.

My code looks like this:

Proximity intent declaration

private String proximityIntentAction = new String("gpsdelivery.gpship.getLocation.GPS_PROXIMITY_ALERT");    

Inside onStart() where the parameters of the alerts are set

IntentFilter intentFilter = new IntentFilter(proximityIntentAction);
registerReceiver(new ProximityAlert(), intentFilter);
setProximityAlert(45.150344, 9.999815, -1);        

Proximity alert function where the alerts get created

private void setProximityAlert(double lat, double lon, int requestCode)
{
    // 100 meter radius
    float radius = 100f;
    // Expiration is 10 Minutes
    long expiration = 600000;
    LocationManager locManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

    Intent intent = new Intent(proximityIntentAction);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), requestCode, intent, PendingIntent.FLAG_CANCEL_CURRENT);
    locManager.addProximityAlert(lat, lon, radius, expiration, pendingIntent);

}

And finally my proximity alert class with the Broadcast receiver

public class ProximityAlert extends BroadcastReceiver
    {
        @Override
        public void onReceive(Context context, Intent intent) 
        {
            Log.v("SomeTag","Proximity alert received");

        }

    }       

Please let me know what I'm missing or what am I doing wrong. Thanks in advance, any source code would be appreciated.