如何将列表视图放在SingleChildScrollView内，但防止它们单独滚动？ [英] how to place a listview inside a SingleChildScrollView but prevent them from scrolling separately?

问题描述

我有一个这样的小部件树：

I have a widget tree like this:

SingleChildScrollView
   Column
     Container
       ListView(or GridView)

问题是当我的小部件树如上时，它给我错误的

the problem is that when my widget tree is like above, it gives me error of

NEEDS PAINT

NEEDS PAINT

像这样更改我的小部件树：

so I change my widget tree like this:

Column
     Container
       ListView(or GridView)

但是在这种情况下，ListView或GridView部分是单独滚动的，我希望整个小部件树都滚动。

but in this situation the ListView or GridView part scrolls separately, and I want the whole widget tree to scroll. how do you think I can achieve it?

推荐答案

如其他答案所建议的，您可以通过设置 shrinkWrap：是的，物理：NeverScrollableScrollPhysics（），但是构建收缩包装的列表视图比构建普通的列表视图更昂贵，我认为在列表上使用map（）是个好主意

As suggested by other answers, you can do that by setting shrinkWrap: true, physics: NeverScrollableScrollPhysics(), but building a shrinkwrapped listview is more expensive than building a normal listview, I think it will be a good idea to use a map() on the list.

Column(
  children: <Widget>[
    ...itemList.map((item) {
       return Text(item);
    }).toList(),
  ],
),

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