@Override
  public void onManagerFinishUpdate(ArrayList<Item> items, Manager manager) {
    ArrayList<Item> commics = new ArrayList<Item>(items.size());

    for (Item item : items)
      if (item.getCategories().contains("Tirinhas") == true) commics.add(item);

    databaseHelper.saveCommics(commics);

    if (listener != null) listener.onFinishUpdate(this);
  }
 @Override
 public void onManagerFailUpdate(Exception e, Manager manager) {
   if (listener != null) listener.onFailUpdate(e, this);
 }