[英]Flutter Web - How to use a TabBarView inside a SingleChildScrollView -> Column?
[英]how to use spacer inside a column that is wrapped with singlechildscrollview?
我试图在一个用 singlechildscrollview 包裹的列中使用 spacer,它给了我一个错误。
RenderFlex children have non-zero flex but incoming height constraints are unbounded.
这是我的小部件
class Test extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Form(
child: SingleChildScrollView(
child: Column(
children: <Widget>[
TextFormField(),
TextFormField(),
//Spacer()
Divider(),
Icon(Icons.block)
],
),
));
}
}
我应该用什么? 感谢您的帮助
您可以尝试一下,我使用您的代码添加了一个示例,它可以工作:
class Test extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(body: LayoutBuilder(
builder: (context, constraint) {
return Form(
child: SingleChildScrollView(
child: ConstrainedBox(
constraints: BoxConstraints(minHeight: constraint.maxHeight),
child: IntrinsicHeight(
child: Column(
children: <Widget>[
TextFormField(),
TextFormField(),
Spacer(),
Divider(),
Icon(Icons.block)
],
),
),
),
),
);
},
));
}
}
检查此 Github 问题以获取有关上述解决方案的更多详细信息: Wrapping a Column with an expand in a SingleChildScrollView throws an exception
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.