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 is mapEventToState?
In the current version, mapEventToState returns a Stream which lends itself to relying on async generators (async*) in order to react to events and emit states . The new on<Event> API introduced in v7. 2.0 makes it easier and safer to implement complex state changes while eliminating uncertainty.
Read moreWhat is Block provider in Flutter?
BlocProvider is a Flutter widget which provides a bloc to its children via BlocProvider. of<T>(context) . It is used as a dependency injection (DI) widget so that a single instance of a bloc can be provided to multiple widgets within a subtree.
Read moreHow do you implement blocs in Flutter?
Code Implementation Let’s build a simple app to implement this Bloc pattern. We will create a simple counter app that has two buttons to increment and decrement a number. Start a new Flutter project by typing “flutter create [project_name]” in the console. Create BlocCounter class in counter_bloc.
Read moreHow do you use BLoC consumers?
How does it work?
Read moreShould I use provider in Flutter?
One of the main reasons to prefer Provider over Statefulwidget s is that, using Provider , you will rebuild only the widgets that needs that value (the Consumers ) while the other will not be rebuilt . Instead when you call setState the whole build function of the widget will be called.
Read moreAre BLoC patterns good?
Bloc is a good pattern that will be suitable for almost all types of apps.
Read more