Flutter：SimpleDialog 中的 ListView

我想用ListView显示一个SimpleDialog.使用以下代码在我的Flutter 应用程序中创建:

showDialog(
  context: context,
  builder: (BuildContext context) {
    return new SimpleDialog(
      children: <Widget>[
        new FittedBox(
          child: new ListView(
            children: <Widget>[
              new Text("one"),
              new Text("two"),
            ],
          ),
        )
      ],
    );
  },
);

这会产生此错误(抱歉，我无法将日志(log)包装为代码，因为Stackoverflow抱怨代码太多):

══╡ EXCEPTION CAUGHT BY RENDERING LIBRARY ╞═════════════════════════════════════════════════════════ I/flutter ( 4481): The following assertion was thrown during performLayout(): I/flutter ( 4481): RenderViewport does not support returning intrinsic dimensions. I/flutter ( 4481): Calculating the intrinsic dimensions would require instantiating every child of the viewport, which I/flutter ( 4481): defeats the point of viewports being lazy. I/flutter ( 4481): If you are merely trying to shrink-wrap the viewport in the main axis direction, consider a I/flutter ( 4481): RenderShrinkWrappingViewport render object (ShrinkWrappingViewport widget), which achieves that I/flutter ( 4481): effect without implementing the intrinsic dimension API. I/flutter ( 4481): ... I/flutter ( 4481): Another exception was thrown: RenderBox was not laid out: RenderPhysicalShape#83d92 relayoutBoundary=up2 NEEDS-PAINT I/flutter ( 4481): Another exception was thrown: 'package:flutter/src/rendering/shifted_box.dart': Failed assertion: line 310 pos 12: 'child.hasSize': is not true. I/flutter ( 4481): Another exception was thrown: RenderBox was not laid out: RenderPhysicalShape#83d92 relayoutBoundary=up2

我try 使用具有特定高度和宽度的容器，它可以工作，但我希望ListView能够适合对话框.

How to include a ListView in a SimpleDialog?