当我将ListView放在列中时，出现了“引发了另一个异常：RenderBox未被布置”

Question

我最近在Column和SingleChildScrollView内部制作了一个ListView 但是它显示出诸如“ NEEDS PAINT”之类的错误。这是我的身体代码

body: Container(
      child: SingleChildScrollView(
        child: Column(
          children: <Widget>[
            ListView.builder(
              itemCount: 4,
              itemBuilder: (BuildContext context, int index) {
                Text("Hoi");
              },
            )
          ],
        ),
      ),
    ),

我想退回“ Hoi” 4次。.但是它向我显示了类似的内容

Another exception was thrown: RenderBox was not laid out: RenderRepaintBoundary#6c04f relayoutBoundary=up1 NEEDS-PAINT

Answer 1

您可以使用shrinkWrap的{​​{1}}属性。

ListView

更多信息：https://docs.flutter.io/flutter/widgets/ScrollView/shrinkWrap.html

不要忘记在ListView.builder( shrinkWrap: true, ... 内返回一个Widget

itemBuilder