Animating changes in a SliverList : <p>I currently have a <code>SliverList</code> whose items are loaded dynamically. The issue is that once these items are loaded, the <code>SliverList</code> updates without animating the changes, making the transition between loading &amp; loaded <em>very</em> jarring.</p>

<p>I see that <code>AnimatedList</code> exists but it isn't a sliver so I can't place it directly in a <code>CustomScrollView</code>.</p>
