flutter ListView判断滚动到了顶部和底部

原创于 2024-03-12 15:45:21 发布 · 1.2k 阅读

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#flutter

ScrollController _scrollController = ScrollController();
@override
  void initState() {
    super.initState();
    _scrollController.addListener(() {
      if (_scrollController.position.pixels >=
          _scrollController.position.maxScrollExtent) {
        //滚动到底部
      }else if(_scrollController.position.pixels <=
          _scrollController.position.minScrollExtent){
        //滚动到顶部
      }
    });
    }

ListView.separated(
      controller: _scrollController,
      itemBuilder: (context, index) {
        return _listItemView(index);
      },
      separatorBuilder: (context,index) =>Container(height: 5),
      itemCount:_activitiesList.length)