listenable method

ValueListenable<Box<T>> listenable(
  1. {List? keys}
)

Returns a ValueListenable which notifies its listeners when an entry in the box changes.

If keys filter is provided, only changes to entries with the specified keys notify the listeners.

Implementation

ValueListenable<Box<T>> listenable({List<dynamic>? keys}) =>
    _BoxListenable(this, keys?.toSet());