@Override
  public void onCreate() {
    super.onCreate();

    service = this;

    Log.d("CMJ", "Service onCreate");
  }
  public void atrasarTimeListaMaterias() {

    Log.d("CMJ", "atraso: " + getInstance().timeListaMaterias);
    if (timeListaMaterias < timeListaMaximo) timeListaMaterias += 2;
    updatePontoDownloadFileMaterias();
  }