In simple terms, BLoC accepts a stream of events, processes the data based on events, and produces the output as states. Writing code in BLoC makes it easier to write and reuse tests. What is BLoC?īusiness logic components (BLoC) allow you to separate the business logic from the UI. We’ll explain what BLoC means and demonstrate how to implement any feature in BLoC. In this tutorial, we’ll focus on using the BLoC design pattern for state management in Flutter. There are myriad state management solutions available for Flutter, including Provider, InheritedWidget and InheritedModel, Redux, BLoC, GetIt, MobX, Riverpod, etc. Staying on top of everything requires an effective state management technique. There are many other factors you should also consider while developing a Flutter app, such as architecture, scalability, readability, complexity, etc. But while setState can be your best friend, it’s not a good idea to depend on it solely. In Flutter, you can manage the state of your app just by using setState. All UI components should be aware of the state of the app at all times. With multiple components, it’s crucial to implement effective communication between them. When working on a Flutter app, you might encounter the need to split a large UI component into several smaller ones to improve the readability of the code.

State management in Flutter using the BLoC design pattern Over the last seven-plus years, I've been developing and leading various mobile apps in different areas. Pinkesh Darji Follow I love to solve problems using technology that improves users' lives on a major scale.

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