Adds a listener callback that is called whenever a new concrete ImageInfo object is available . If a concrete image is already available, this object will call the listener synchronously.
Read moreHow do I add ChangeNotifierProvider?
DO create a new ChangeNotifier inside create .
Read moreWhy is state in Flutter?
State is information that (1) can be read synchronously when the widget is built and (2) might change during the lifetime of the widget. It is the responsibility of the widget implementer to ensure that the State is promptly notified when such state changes, using State. setState.
Read moreWhat is a BLoC event?
Bloc is similar to Cubit , but it uses events to do all its work . Like Cubit , the state is held in the Bloc , then to change or add new state, events are added to the Bloc . When an event is added to the Bloc , the onEvent method is called. After this onEvent method is called, a transform events method is called.
Read moreIs BLoC a state management?
BLoC is an abbreviation for “Business logic component” which — like most state managers — aims to decouple business logic from the views. The Flutter bloc package provides you with all the tools to implement the BLoC pattern into your app.
Read moreWhat is BLoC design pattern?
Bloc is a design pattern created by Google to help separate business logic from the presentation layer and enable a developer to reuse code more efficiently . A state management library called Bloc was created and maintained by Felix Angelo.
Read moreWhat does a ChangeNotifier do?
ChangeNotifier is a simple class included in the Flutter SDK which provides change notification to its listeners . In other words, if something is a ChangeNotifier , you can subscribe to its changes. (It is a form of Observable, for those familiar with the term.)
Read more