Broadcast notification when Android device is asleep

Question

I have a Activity calling a function of a class (service) that creates a intent = NEW INTENT("MEU_BROADCAST") and also a Alarmmanager. Within the class Broadcast I call a Activity creating a notification.

Everything working perfectly, my problem is that I want it to wake up even when the user clicks the button power (Sleep), because it does not wake up if it is asleep, only when the user clicks on the power to turn on the screen. I tried to use the Powermanager It’s just not working! Can someone help me?

This function is of my class that does not extend anything! is just a function I call via an OBJECT

public void gravarAlertaDeEvento(Context ctx, int alarmId, int mHour, int mMinute, boolean repeat, Calendar calendar, String titulo, String evento, boolean som)
{
    //Intent intentAlarme = new Intent(ctx, Alarme.class);
    Intent intentAlarme = new Intent("EXECUTAR_ALARME");
    //intentAlarme.setAction("Start");
    intentAlarme.putExtra("id_evento", ""+alarmId);
    intentAlarme.putExtra("musica", som);
    intentAlarme.putExtra("titulo_evento", titulo); //Insere titulo do evento salvo
    intentAlarme.putExtra("evento", evento);    //insere info do evento salvo
    //PendingIntent enviarAlarme = PendingIntent.getActivity(ctx, alarmId, intentAlarme, 0);
    PendingIntent enviarAlarme = PendingIntent.getBroadcast(ctx, alarmId, intentAlarme, 0);

    AlarmManager am = (AlarmManager) ctx.getSystemService(Context.ALARM_SERVICE);
    if(repeat)
    {
        am.setRepeating(AlarmManager.RTC_WAKEUP,calendar.getTimeInMillis(), calendar.getTimeInMillis(), enviarAlarme);
    }else
    {
        am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), enviarAlarme); 
    }   
}   

My Service class:

public class GerandoNotificacao extends Service{

@Override
public IBinder onBind(Intent arg0) {
    // TODO Auto-generated method stub
    return null;
}

@SuppressWarnings("deprecation")
public void onStart(Intent intent, int startId){
    super.onStart(intent, startId);

    try {

        String titulo = intent.getStringExtra("titulo_evento");
        String assunto = intent .getStringExtra("evento");

        NotificationManager notManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
        Notification notific = new Notification(R.drawable.calendar2, "Evento", System.currentTimeMillis());

        if (intent.getBooleanExtra("musica", false))
        {
            notific.sound = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + getPackageName() + "/"+ R.raw.alarme);
        }           

        notific.defaults = Notification.DEFAULT_LIGHTS;
        notific.flags |= Notification.FLAG_INSISTENT;
        notific.flags |= Notification.FLAG_AUTO_CANCEL;

        notific.ledARGB = R.color.seaGreen;

        notific.vibrate = new long[]{ 100, 250, 100, 250, 100, 250, 100, 250, 500 };

        int idEvento = Integer.parseInt(intent.getStringExtra("id_evento")); //pegando id da notificação

        Intent activityAbrir = new Intent(this, EditarEvento.class);
        activityAbrir.putExtra("tela", "eventos");
        activityAbrir.putExtra("p_c", ""+idEvento);
        activityAbrir.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);   

        //PendingIntent para executar a Activity se o usuário selecionar a notificação
        PendingIntent pendInt = PendingIntent.getActivity(this, idEvento, activityAbrir, 0);

        notific.setLatestEventInfo(getApplicationContext(), titulo, assunto, pendInt);
        notManager.notify(idEvento, notific);       

        WakefulBroadcastReceiver.completeWakefulIntent(intent);

    } catch (Exception e) {
        //Toast.makeText(getApplicationContext(), "Alert: "+e.getMessage(), Toast.LENGTH_LONG).show();
    }
}

}

My class Wakeupfullbroadcastreceved

@Override
public void onReceive(Context c, Intent i) {

    Intent intet = new Intent(c, GerandoNotificacao.class); //Chamando a classe notificação
    intet.putExtra("id_evento", i.getStringExtra("id_evento"));      //insere id do evento (banco de dados)
    intet.putExtra("musica", i.getBooleanExtra("musica", false));
    intet.putExtra("titulo_evento", i.getStringExtra("titulo_evento")); //Insere titulo do evento salvo
    intet.putExtra("evento", i.getStringExtra("evento"));   //insere info do evento salvo

    /*try {
        this.finalize();
    } catch (Throwable e) { Log.i("Erro borad: ", e.getMessage());  }*/
    startWakefulService(c, intet);        
}

My Manifest

<receiver android:name="br.com.AlarmeEvento.Alarme" >
        <intent-filter>
            <action android:name="EXECUTAR_ALARME" />

            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </receiver>

Answer 1

Who has to have a Wake Lock to keep the CPU awake is the broadcast receiver and not the code that schedules the alarm next to Alarmmanager. I suggest your broadcast receiver be a subclass of Wakefulbroadcastreceiver. If the alarm trigger (sound to be played, etc.) is performed within a separate service and not directly on onReceive(), the service before finalizing should call WakefulBroadcastReceiver.completeWakefulIntent(intent) so that Wake Lock can be released.