Communication Service<->Activity

// Tutorial for www.androidos-lab.it

// INVIO
// inizializzazione in "onCreate"
String static final BUS_ID = "com.bus.tutorial";
LocalBroadcastManager broadcaster = LocalBroadcastManager.getInstance(this);

// invio dati dove serve :P
Intent i = new Intent(BUS_ID);
i.putExtra("chiave", "valore");
broadcaster.sendBroadcast(i);

// RICEZIONE
// creare il listener in "onCreate"
BroadcastReceiver receiver = new BroadcastReceiver() {
  @Override
  public void onReceive(Context context, Intent intent) {
    String s = intent.getStringExtra("chiave");
    Log.d("tutorial", "Dato ricevuto: " + s);
  }
}

// e registrarlo in "onResume"
LocalBroadcastManager.getInstance(this).registerReceiver((receiver), new IntentFilter(BUS_ID));

// e de-registrarlo in "onPause"
LocalBroadcastManager.getInstance(this).unregisterReceiver(receiver);