title: Flutter ListView.Builder inside SingleChildScrollView not scrollable
body: <p>I've just began Flutter. I made a HeaderComponent which shows the title &quot;Home&quot; at the top and I used the BubbleBottomNavbar plugin which is displayed at the bottom.
  For the moment, I'm using a list of strings as a mock but will later get a lists of news from an API an loop to display as cards.</p>
  <p>I tried to create as many components as I can and wrap them to reuse the same &quot;MainContainer&quot; everywhere. This one will show the HeaderComponent and a list of widgets it will receive in parameters as content.</p>
  <p>I want to it to be a scrollable view by default. All its widgets in content are well displayed but I keep seeing the &quot;bottom overflowed ...&quot; warning. I tried many components and different way to fix this using Flex component, Expandable, ... but I still can't scroll and keep this warning</p>
  <p>This is my App Render :</p>
  <p><a href="https://i.stack.imgur.com/ieZTi.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ieZTi.png" alt="iPhone App Preview" /></a></p>
  <p>Here are my build methods :</p>
  <p>MainComponent.dart :
  <a href="https://i.stack.imgur.com/xhfTu.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/xhfTu.png" alt="MainComponent" /></a></p>
  <p>PostsComponent.dart :
  <a href="https://i.stack.imgur.com/CvdsD.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CvdsD.png" alt="PostsComponent" /></a></p>
  <p>Thank you for the help you'll provide me </p>