What is Bloc listener in Flutter?

BlocListener is a Flutter widget which takes a BlocWidgetListener and an optional bloc and invokes the listener in response to state changes in the bloc . It should be used for functionality that needs to occur once per state change such as navigation, showing a SnackBar , showing a Dialog , etc…

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What are events in BLoC Flutter?

BLoC uses the concept of Streams, or Reactive programming. This means that when a stream of events is created, subscribers can listen in on the stream of events . The subscribers are notified of new data when it is emitted into the stream. Widgets in Flutter use this stream for communication and sending data.

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