dart - how to place a listview inside a SingleChildScrollView but prevent them from scrolling separately?

Question

I have a widget tree like this:

SingleChildScrollView
   Column
     Container
       ListView(or GridView)

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

NEEDS PAINT

so I change my widget tree like this:

Column
     Container
       ListView(or GridView)

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?

Answer 1

You could use your first widget-tree and apply the following changes:

1. In every ListView and GridView set shrinkWrap: true. This fixes the error message you were getting.
2. In every ListView and GridView set physics: NeverScrollableScrollPhysics(). This disables the scroll on them and new you can only scroll on the SingleChildScrollView