ios闪退 about loading_more_list HOT 11 CLOSED

 @override
  void initState() {
    super.initState();
    _goodListModel = GoodListModel();
  }

  @override
  void dispose() {
    _goodListModel?.dispose();
    super.dispose();
  }

class GoodsList extends StatefulWidget {
  const GoodsList({
    Key key,
  }) : super(key: key);

  @override
  State<StatefulWidget> createState() {
    return GoodsListState();
  }
}

class GoodsListState extends State<GoodsList> {
  GoodListModel _goodListModel;


  @override
  void initState() {
    super.initState();
    _goodListModel = GoodListModel(setting: _setting);
  }

  @override
  void dispose() {
    _goodListModel?.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return LoadingMoreSliverList(
      SliverListConfig(
        itemBuilder: (BuildContext context, dynamic data, int index) {
          Widget child = GoodsCardTemplate(
            data: data,
          );
          return child;
        },
        sourceList: _goodListModel,
      ),
    );
  }
}

class GoodListModel extends LoadingMoreBase {
  int pageNo = 1;
  int _pageSize = 16;

  bool _hasMore = true;
  bool forceRefresh = false;

  @override
  bool get hasMore => _hasMore || forceRefresh;

  @override
  Future<bool> refresh([bool clearBeforeRequest = false]) async {
    _hasMore = true;
    pageNo = 1;

    forceRefresh = !clearBeforeRequest;
    var result = await super.refresh(clearBeforeRequest);
    forceRefresh = false;
    return result;
  }

  @override
  Future<bool> loadData([bool isloadMoreAction = false]) async {
    bool isSuccess = false;

    fianl List res = // http

    if (res != null) {
      isSuccess = true;
      if (res.length < _pageSize) {
        _hasMore = false;
      }
      addAll(res);
      pageNo++;
    }

    return isSuccess;
  }
}