flutter 报BUG：Another exception was thrown: RenderBox was not laid out: RenderRepaintBoundary#a109a relayoutBoundary=up3 NEEDS-PAINT

 

具体原因就是:
在Flutter 的 Column/Row 内使用ListView.builder()需要对改ListView的大小进行指定.
具体的解决办法就是 在该ListView.builder()外嵌套一个SizeBox或者Container设置高度即可。

 

Container(
    height: 200.0,
    child: ListView.builder(
        itemCount: 3,
        itemBuilder: _cellForRow,
    ),
),