title: How to animate list changes in Flutter
body: <p>If I have a list (of ListTiles for example) that can be added to, removed from, and swapped, what would be the best way to animate these changes? I am using a <a href="https://pub.dartlang.org/packages/flutter_reorderable_list" rel="noreferrer">reorderable list</a> if that makes a difference. Right now my list has no animations, I just call setState when data is changed.</p>