@Override
 public boolean onOptionsItemSelected(MenuItem item) {
   int id = item.getItemId();
   if (id == android.R.id.home) {
     Intent intent = NavUtils.getParentActivityIntent(this);
     Bundle bundle = new Bundle();
     bundle.putParcelable(ARG_POTENTIAL_HABIT_EDIT, detailFragment.getHabit());
     intent.putExtras(bundle);
     intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
     NavUtils.navigateUpTo(this, intent);
     return true;
   }
   return super.onOptionsItemSelected(item);
 }