@Override
public int onStartCommand(Intent intent, int flags, int startId) {


    Log.e("InBackground", "Serviço em background iniciado");

    Intent newIntent = new Intent(getBaseContext(),Service.class);
    newIntent.putExtra("comando","AtualizaInBackground");

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        String CHANNEL_ID = "my_channel_01";

        NotificationChannel channel = new NotificationChannel(CHANNEL_ID, "Atualizações em Background.", NotificationManager.IMPORTANCE_NONE);

        ((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).createNotificationChannel(channel);

        Notification notification = new NotificationCompat.Builder(getBaseContext(), CHANNEL_ID)
                .setContentTitle("")
                .setContentText("").build();
        startForeground(1, notification);
    }
    startService(newIntent);


    return START_STICKY;
}