title: Allow flutter Column to take all the available Space in this kind of layout
body: <p>I've a ListView.builder on my page which wraps Columns inside it according to various parameters.</p>
  <p>My code looks something like this :</p>
  <pre><code>ListView.builder(
    itemCount: sortedList.length,
    itemBuilder: (BuildContext context, int index) {
      Render Column 1,
      Render Column 2,
      Render Column 3
  }
  </code></pre>
  <p>My columns look something like this :</p>
  <pre><code>Column(
    mainAxisSize: MainAxisSize.min,
    children: [
     Child 1,
     Child 2,
    ]
  )
  </code></pre>
  <p>What I want ?
  Now coming over to Column 3, I want it's one child to show at the top and one at the bottom of the screen. Something like this:
  <a href="https://i.stack.imgur.com/cDQt6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/cDQt6.png" alt="enter image description here" /></a></p>
  <p>As you can see, <strong>I want Column 3 to take all the page's available space and then it can align one of its child to the top and one to the bottom inside itself</strong>. I can do this by simply adding MainAxisAlignment.spaceBetween but right now I don't know how can I allow this Column to take all the available space inside of this ListView.</p>
  <p>Can anyone please tell me what we can do here? Thanks in advance!</p>