Sorting Android Adapter data

AdapterSort.java

public class CustomAdapter extends ArrayAdapter<Model> {

  /**
   * Sort should be enabled so the items are always consistently displayed.
   * First disable notifying of the list because sort method does it internally therefore we can end up in loop.
   * After sorting is done, enable notifying.
   */
  @Override
  public void notifyDataSetChanged() {

      this.setNotifyOnChange(false);
      this.sort(Model.getComparator());
      this.setNotifyOnChange(true);
      super.notifyDataSetChanged();
  }
}

public class Model {
  /**
   * Creates basic comparator for models.
   * @return basic comparator.
   */
  public static Comparator<Model> getComparator() {

      return new Comparator<Model>() {

          @Override
          public int compare(Model model1, Model
                  model2) {

              return // implement the comparation.
          }
      };
    }
  }