这是我的代码:

@override
Widget build(BuildContext context) {
  return new Material(
    color: Colors.deepPurpleAccent,
    child: new Column(
     mainAxisAlignment: MainAxisAlignment.center,
        children:<Widget>[new GridView.count(crossAxisCount: _column,children: new List.generate(_row*_column, (index) {
          return new Center(
              child: new CellWidget()
          );
        }),)]
    )
  );
}

例外情况如下:

I/flutter ( 9925): ══╡ EXCEPTION CAUGHT BY RENDERING LIBRARY ╞═════════════════════════════════════════════════════════
I/flutter ( 9925): The following assertion was thrown during performResize():
I/flutter ( 9925): Vertical viewport was given unbounded height.
I/flutter ( 9925): Viewports expand in the scrolling direction to fill their container.In this case, a vertical
I/flutter ( 9925): viewport was given an unlimited amount of vertical space in which to expand. This situation
I/flutter ( 9925): typically happens when a scrollable widget is nested inside another scrollable widget.
I/flutter ( 9925): If this widget is always nested in a scrollable widget there is no need to use a viewport because
I/flutter ( 9925): there will always be enough vertical space for the children. In this case, consider using a Column
I/flutter ( 9925): instead. Otherwise, consider using the "shrinkWrap" property (or a ShrinkWrappingViewport) to size
I/flutter ( 9925): the height of the viewport to the sum of the heights of its children.
I/flutter ( 9925): 
I/flutter ( 9925): When the exception was thrown, this was the stack:
I/flutter ( 9925): #0      RenderViewport.performResize.<anonymous closure> (package:flutter/src/rendering/viewport.dart:827:15)
I/flutter ( 9925): #1      RenderViewport.performResize (package:flutter/src/rendering/viewport.dart:880:6)
I/flutter ( 9925): #2      RenderObject.layout (package:flutter/src/rendering/object.dart:1555:9)

当前回答

我做了一个自定义函数来解决你的问题。 你可以直接在你的代码库中使用这个函数:

Widget horizontalListView(height, width, color, child, margin) {
return Column(
  children: [
    SizedBox(
      height: 200,
      child: ListView.builder(
        itemCount: 10,
        shrinkWrap: true,
        scrollDirection: Axis.horizontal,
        itemBuilder: (context,index) {
          return Container(
            height: height,
            width: width,
            margin: EdgeInsets.all(margin),
            color: color,
            child: child
          );
        }
      ),
    ),
  ],
 );
})

附注:对不起,代码对齐不好。

其他回答

我们可以用两种方法来解决上述问题

1. 使用灵活的部件,

Flexible小部件可以在Row、Column和Flex中使用。扩展以填充主轴中的可用空间的灵活性(例如,水平扩展[Row]或垂直扩展[Column])

但是,请记住,与Expanded不同,The Flexible小部件不需要子部件填充可用空间。所以,最好使用Flexible。

Column(
  children: <Widget>[
    Flexible( 
      child: ListView(...),
    ),
  ],
)

2. 使用shrinkWrap: true

使用shrinkWrap为true,我们告诉Listview渲染它的List到可用空间,而不是在剩余屏幕以下。

Column(
  children: <Widget>[
    ListView(
      shrinkWrap: true, 
    ),
  ],
)

此外,物理属性可以用来允许/禁止滚动Listview

停止滚动

 ListView(
      shrinkWrap: true, 
      physics: NeverScrollableScrollPhysics(),
    ),

允许滚动

 ListView(
      shrinkWrap: true, 
      physics: ScrollPhysics(),
    ),

 

所以,每个人都上传了答案,但没有人愿意解释原因: 我将复制关于shrinkWrap的文档:

Whether the extent of the scroll view in the [scrollDirection] should be determined by the contents being viewed. If the scroll view does not shrink wrap, then the scroll view will expand to the maximum allowed size in the [scrollDirection]. If the scroll view has unbounded constraints in the [scrollDirection], then [shrinkWrap] must be true. Shrink wrapping the content of the scroll view is significantly more expensive than expanding to the maximum allowed size because the content can expand and contract during scrolling, which means the size of the scroll view needs to be recomputed whenever the scroll position changes. Defaults to false.

所以,从文档的词汇表来看,这里发生的是我们的ListView处于一个无限约束的情况(在我们滚动的方向上),因此ListView会抱怨:

... 垂直视口被赋予无限的垂直空间 它需要扩展。

通过简单地将shrinkWrap设置为true,将确保它包装由内容定义的大小。示例代码说明:

// ...
  ListView(
    // Says to the `ListView` that it must wrap its
    // height (if it's vertical) and width (if it's horizontal).
    shrinkWrap: true,
  ),
// ...

这就是你的代码,尽管如此,@Rémi建议是最好的,使用Align而不是Column。

有很多答案,但每一个都有自己的局限性。每个人都在说使用shrinkWrap:没错。是的,你应该使用它,但这些代码的效果是,当你滚动列表时,它会自动移动到顶部项目,这意味着滚动回顶部。 所以完美的解决方案是使用物理收缩包装,只有列表才能顺利滚动。

      shrinkWrap: true,          //
      physics: ScrollPhysics(),  // both line is mandatory

如果你想看Listview的其他例子。生成器与列作为子和列表可以垂直滚动,然后你可以看到这里的例子-在垂直列表中排列多个文本。

只是想添加我的解决方案,在我的情况下,我有垂直列表视图与其他按钮和文本在同一屏幕上:

Flexible(
child:  
  ListView.builder(
  // make sure to add the following lines:  
  shrinkWrap: true,
  physics: ScrollPhysics(),
  // the rest of your list view code
 ) // ListView
) // Flexible

这个解决方案工作得很好,特别是当您在同一屏幕上有其他小部件时。在这种特殊情况下,仅使用“Expand”或“Flexible”是行不通的。

测试第二个列表视图

ListView.builder(
            physics: NeverScrollableScrollPhysics(),