How to draw widget on available height in flutter

Question

I have a widget that needs to draw on the remaining height where that widget needs to be drawn in between the top and bottom widget(Bottom widget drawn with bottom center attribute).

Ex:

Container() -- The First container almost take half screen

Container() -- The Second container draw on the bottom of the screen eg: Consider widget as Button

Container() -- The Third Container needs to be drawn in between two containers.

Answer 1

The Expanded widget would work for this scenario where we need to wrap middle widget with it.

Eg:

Expanded(
        child: Container(
              ...         
            ),
         ),