EventHandler<Event, State> typedef Null safety

FutureOr<void> EventHandler<Event, State>(
  1. Event event,
  2. Emitter<State> emit
)

An event handler is responsible for reacting to an incoming Event and can emit zero or more states via the Emitter.

Implementation

typedef EventHandler<Event, State> = FutureOr<void> Function(
  Event event,
  Emitter<State> emit,
);