如何设置TabBarView占用列中两个小部件之间可用的垂直空间

Question

I have a Column, which has the following widgets inside the column:

Column(
  Image[has a fixed height]  
  TabBar[has a fixed height]  
  TabBarView[variable height, expand to take up remaining vertical space]  
  BottomNavigationBar[has a fixed height, and of course is 'pinned' to the bottom of the screen]  
),

I need the TabBarView to expand to take up as much space as is available, which will depend on screen size.

Answer 1

It kind of sounds like you should be using a Scaffold as it does most of what you want already. The Image and TabBar could be in their own column in a widget that implements PreferredSizeWidget and would be the appBar , the TabBarView would be the body , and the BottomNavigationBar would be the bottomNavigationBar .

If you're really committed to using a Column, you just need to wrap your TabBarView in an Expanded widget.