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 moreWhat is Cubit in BLoC?
A Cubit is similar to Bloc but has no notion of events and relies on methods to emit new states . Every Cubit requires an initial state which will be the state of the Cubit before emit has been called. The current state of a Cubit can be accessed via the state getter.
Read moreIs BLoC pattern necessary?
This is where the bloc package comes into play. It provides all core classes that are necessary to use the pattern . I would absolutely recommend to use it instead of implementing your own solution.
Read moreHow do you learn BLoC pattern Flutter?
Create an event stream and counter stream inside CounterBloc . Listen to the event stream to perform business logic when new events are added to the stream. Create an object of CounterBloc inside MyHomePageState. To rebuild the widget when new data arrives into the stream we will wrap Text widget with StreamBuilder.
Read moreWhat is BlocBuilder Flutter?
BlocBuilder. BlocBuilder is a Flutter widget which requires a bloc and a builder function . BlocBuilder handles building the widget in response to new states. BlocBuilder is very similar to StreamBuilder but has a more simple API to reduce the amount of boilerplate code needed.
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