title: Flutter - Listview.builder inside another Listview
body: <p>I want my screen to be scrollable so I put everything in a Listview.</p>
  
  <p>Now I want to show another Listview inside to show details of a List. When I try this an error is thrown - " Expanded widgets must be placed inside Flex widgets." </p>
  
  <p><a href="https://i.stack.imgur.com/opZ7y.png" rel="noreferrer"><img src="https://i.stack.imgur.com/opZ7y.png" alt="enter image description here"></a></p>