cowGroups property Null safety

List<CowGroup> cowGroups

"전체"를 제외한 모든 그룹을 가져옵니다.

Implementation

List<CowGroup> get cowGroups => _cowGroups;

void cowGroups=(List<CowGroup> _)

set cowGroups(List<CowGroup> _) {
  _cowGroups.clear();
  _.forEach((e) => addGroup(e));
  notifyListeners();
}