在颤动中如何仅滚动屏幕的下半部分

Question

我正在尝试创建一个 UI，其中上半部分是裁剪视图内的图像，下半部分是一些文本内容。

我已经尝试使用 Expanded Widget 扩展和包装 SingleChildScrollLView 并且我得到了一个白屏。

var DetailsScreenBottomPart = SingleChildScrollView(
    child: Column(
  mainAxisSize: MainAxisSize.min,
  children: <Widget>[
    Padding(
        padding: EdgeInsets.all(18.0),
        child: Row(
          children: <Widget>[
            Text('Basic Information'),
            Spacer(),
            Text('See all')
          ],
        )),
    Container(
      padding: EdgeInsets.symmetric(horizontal: 18.0, vertical: 20.0),
      child: Text(
          'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Urna porttitor rhoncus dolor purus non enim praesent. Tristique senectus et netus et malesuada. Justo laoreet sit amet cursus sit. Nunc sed blandit libero volutpat. Donec enim diam vulputate ut pharetra sit amet. Lacus luctus accumsan tortor posuere. Mauris nunc congue nisi vitae suscipit. Commodo nulla facilisi nullam vehicula ipsum a. Fermentum posuere urna nec tincidunt praesent semper feugiat nibh sed. Ultrices sagittis orci a scelerisque. Enim nulla aliquet porttitor lacus luctus accumsan tortor posuere ac. Consequat id porta nibh venenatis. Viverra mauris in aliquam sem fringilla ut morbi. Habitasse platea dictumst vestibulum rhoncus est pellentesque elit. Sollicitudin aliquam ultrices sagittis orci a scelerisque. Eget nunc lobortis mattis aliquam faucibus purus in massa tempor. asgdsgdsgfdsgsdfgsdgsdgsdgfsd asgsdhsdhsdh ghsh sfh sfh fsgh shg sfdh fsh sfgh j dfjsfh sfgj dfgj dfgj dfg jdfjg dfj dfjgdfj dfj dfgj d'),
    ),
  ],
));

我想要的输出非常简单，但自从我今天开始颤动以来，我对 Widgets 的可用性感到有些困惑和不知所措，我可以滚动屏幕的下半部分并保持上半部分静态吗？这在颤振中甚至可能吗？

Answer 1

您需要使用 Column 与 2 Expanded Child。在你的第二个孩子里面保持可滚动视图。例如：

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: Column(
          children: <Widget>[
            Expanded(
              flex: 1,
              child: Container(),
            ),
            Expanded(
              flex: 1,
              child: Container(
                width: double.infinity,
                child: SingleChildScrollView(
                  child: Column(
                    children: <Widget>[
                      Container(height: 100, child: Text("Item 1")),
                      Container(height: 100, child: Text("Item 2")),
                      Container(height: 100, child: Text("Item 3")),
                      Container(height: 100, child: Text("Item 4")),
                      Container(height: 100, child: Text("Item 5")),
                      Container(height: 100, child: Text("Item 6")),
                      Container(height: 100, child: Text("Item 7")),
                      Container(height: 100, child: Text("Item 8")),
                      Container(height: 100, child: Text("Item 9")),
                      Container(height: 100, child: Text("Item 10")),
                    ],
                  ),
                ),
              ),
            )
          ],
        ));
  }