Flutter NotificationListener with ScrollNotification vs ScrollController : <p>There are two options to retrieve the scroll position for a CustomScrollView. The <a href="https://docs.flutter.io/flutter/widgets/CustomScrollView-class.html" rel="noreferrer">documentation</a> states the following: </p>

<blockquote>
  <p>ScrollNotification and NotificationListener, which can be used to watch the scroll position without using a ScrollController.</p>
</blockquote>

<p>So we have the following options:</p>

<ol>
<li>NotificationListener with ScrollNotification</li>
<li>ScrollController</li>
</ol>

<p>In which situation do you useNotificationListener with ScrollNotification vs ScrollController?</p>

<p>Thank you :)</p>
