[androidbrasil-dev] Alerta por proximidade, utilizando o addProximityAlert

// 100 meter radius      float radius = 100f;        // Expiration is 10 Minutes (10mins * 60secs * 1000milliSecs)      long expiration = 600000;        Intent intent = new Intent(PROXIMITY_INTENT_ACTION);      PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), requestCode, intent, PendingIntent.FLAG_CANCEL_CURRENT);        locationManager.addProximityAlert(lat, lon, radius, expiration, pendingIntent);

public static final String PROXIMITY_INTENT_ACTION = "com.mycompanie.receivers.ProximityAlert";  @Override  public void onLocationChanged(Location location) {      Log.d(TAG, "Location Device: " + location.getLatitude() + "," + location.getLongitude());      Intent intent = new Intent(PROXIMITY_INTENT_ACTION);      sendBroadcast(intent);  }

public class ProximityAlert extends BroadcastReceiver {    public static final String EVENT_ID_INTENT_EXTRA = LocationManager.KEY_PROXIMITY_ENTERING;       @Override     public void onReceive(Context context, Intent intent) {         Boolean getting_closer = intent.getBooleanExtra(EVENT_ID_INTENT_EXTRA, false);         if (getting_closer)          Log.d("Radius", "Hey, I just entered your radius!");         else          Log.d("Radius", "I just exited your radius!");     }  }