BlocBase<State> class Null safety

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

Implementers

Constructors

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

Properties

hashCode int
The hash code for this object.
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
state → State
The current state.
read-only
stream Stream<State>
The current state stream.
read-only

Methods

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.
emit(State state) → void
Updates the state to the provided state. emit does nothing if the instance has been closed or if the state being emitted is equal to the current state.
listen(void onData(State)?, {Function? onError, void onDone()?, bool? cancelOnError}) StreamSubscription<State>
Adds a subscription to the Stream<State>. Returns a StreamSubscription which handles events from the Stream<State> using the provided onData, onError and onDone handlers.
@Deprecated('Use stream.listen instead. Will be removed in v8.0.0')
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
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.
inherited

Operators

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