@Override
  public boolean onOptionsItemSelected(MenuItem item) {
    super.onOptionsItemSelected(item);

    switch (item.getItemId()) {
      case android.R.id.home:
        finish();
        return true;
    }

    return false;
  }
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    super.onOptionsItemSelected(item);
    switch (item.getItemId()) {
      case android.R.id.home:
        finish();
        return true;
      case R.id.menu_create_group:
        if (groupId == null) handleGroupCreate();
        else handleGroupUpdate();
        return true;
    }

    return false;
  }