BlocConsumer exposes a builder and listener in order react to new states . BlocConsumer is analogous to a nested BlocListener and BlocBuilder but reduces the amount of boilerplate needed. BlocConsumer should only be used when it is necessary to both rebuild UI and execute other reactions to state changes in the bloc.
Read moreWhat is BLoC Flutter example?
What BLoC does? BLoC helps to separate you presentation and business logic . So in simple terms, we will write all our business logic inside the bloc file. So what basically Bloc does is, it will take an event and a state and return a new state which we will use to update the UI.
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