BlocBase<State> class Null safety

An interface for the core functionality implemented by both Bloc and Cubit.

Implemented types


BlocBase(State _state)
An interface for the core functionality implemented by both Bloc and Cubit.


hashCode int
The hash code for this object.
read-only, inherited
isClosed bool
Whether the bloc is closed.
read-only, override
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
state → State
The current state.
read-only, override
stream Stream<State>
The current stream of states.
read-only, override


addError(Object error, [StackTrace? stackTrace]) → void
Reports an error which triggers onError with an optional StackTrace.
close() Future<void>
Closes the instance. This method should be called when the instance is no longer needed. Once close is called, the instance can no longer be used.
@mustCallSuper, override
emit(State state) → void
Updates the state to the provided state. emit does nothing if the state being emitted is equal to the current state.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
onChange(Change<State> change) → void
Called whenever a change occurs with the given change. A change occurs when a new state is emitted. onChange is called before the state of the cubit is updated. onChange is a great spot to add logging/analytics for a specific cubit.
onError(Object error, StackTrace stackTrace) → void
Called whenever an error occurs and notifies BlocObserver.onError.
toString() String
A string representation of this object.


operator ==(Object other) bool
The equality operator.