小编hs7*_*7it的帖子

我有两个屏幕，第一个从 wordpress 获取所有帖子，最后一个获取所有视频，我使用带有 ListView 的 ScollController 滚动数据

看看我的代码：

ScrollController _scrollController;

@override
  void initState() {
    _scrollController = new ScrollController();
    _scrollController.addListener(() {
      print(_scrollController.position.pixels);
      if (_scrollController.position.pixels ==
          _scrollController.position.maxScrollExtent - 10) {
        // if we are the bottom of the page
        fetchPosts();
        //millisecs += 1500;
        //super.initState();
      }
      super.initState();
    });
  }

  @override
  void dispose() {
    _scrollController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) { ....

当我在屏幕一到两个或屏幕二到一之间切换时

我收到此错误：

    Exception has occurred.
FlutterError (A ScrollController was used after being disposed.
Once you have called dispose() on a ScrollController, …