Problem Statement
What is the main difference between Cubit and Bloc in flutter_bloc?
Explanation
Cubit is a simplified version of Bloc where you call methods directly to emit states, like cubit.increment() which internally calls emit(newState). This makes Cubit simpler with less boilerplate, ideal for straightforward state changes where the event-based architecture isn't necessary. Cubit exposes functions that UI calls directly to trigger state changes.
Bloc uses an event-driven architecture where UI sends events (objects) to the Bloc, and the Bloc processes them through event handlers, mapping events to states. This adds a layer of indirection providing better traceability, event replay for debugging, and explicit event definitions. Bloc is more structured and scalable for complex state logic with multiple event types.
Choose Cubit for simple state management where direct method calls suffice, like toggling settings or simple counters. Choose Bloc when you need the benefits of event-driven architecture: event logging, replay, time-travel debugging, complex event processing, or when your team prefers the explicit event-based approach. Both share the same ecosystem of BlocProvider, BlocBuilder, and BlocListener.
