Flutter bloc/Cubit

BlocObserver class Null safety An interface for observing the behavior of Bloc instances .

BLoC stands for Business Logic Component , and a BLoC is essentially a class which keeps the state of our app/feature/screen/widget, mutates it upon receiving input events and notifying its change.

A Bloc is a more advanced class which relies on events to trigger state changes rather than functions . Bloc also extends BlocBase which means it has a similar public API as Cubit .

BLoC: One of the major difference between BLoC and Cubit is this: “BLoC is Event-Driven and Cubit not .” Track what event triggers certain states is crucial for predict and check if that matches with the expected result.

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.22 Eki 2021

The Flutter bloc package derives its’ name from the BLoC design pattern. 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.