onTransition method

  1. @override
void onTransition(
  1. covariant Transition<ReplayEvent, State> transition
)
override

Called whenever a transition occurs with the given transition. A transition occurs when a new event is added and a new state is emitted from a corresponding EventHandler.

onTransition is called before a Bloc's state has been updated. A great spot to add logging/analytics at the individual Bloc level.

Note: super.onTransition should always be called first.

@override
void onTransition(Transition<Event, State> transition) {
  // Always call super.onTransition with the current transition
  super.onTransition(transition);

  // Custom onTransition logic goes here
}

See also:

Implementation

@override
// ignore: must_call_super
void onTransition(covariant Transition<ReplayEvent, State> transition) {
  // ignore: invalid_use_of_protected_member
  _observer.onTransition(this, transition);
}