ChangeNotifier selector

Have you had a situation where you must select and rebuild the interface only to change specific fields of your?ChangeNotifier?

Not convenient to use?AnimatedBuilder?with ChangeNotifier instead of?ValueListenableBuilder?

Of course, I had to. So I made a simple extension that converts ChangeNotifier to?ValueListenable?and has filtering capabilities.

And transformation pipeline looks like this:

ChangeNotifier --- select & filter --> ValueListenable<Value>

For example, you can transform your AppModel and rebuild some parts of widgets when localization is changed and only when the language code has changed:

ValueListenableBuilder<Locale>(
  valueListenable: appModel.select<Locale>(
    (cn) => cn.locale,
    (prev, next) => prev.languageCode != next.languageCode
  ),
  builder: (context, locale, child) => Text(locale),
)        

Complete code of my extension