ListenerWrapper<T> class

Wraps Stream listen call.

Useful to create a one shot listener or extend and introduce different behaviors.

Available Extensions

Constructors

ListenerWrapper(Stream<T> stream, void onData(T event), {Function? onError, void onDone()?, bool cancelOnError = false, bool oneShot = false, Object? singletonIdentifier, bool singletonIdentifyByInstance = true}): See Stream.listen.

cancelOnError → bool: final
errorCount → int: no setter
eventCount → int: no setter
hashCode → int: The hash code for this object.
no setterinherited
isListening → bool: Returns true if listening.
no setter
onData → void Function(T event): final
onDone → (void Function()?): final
onError → Function?: final
oneShot ↔ bool: If true will wait for 1 event and call cancel.
getter/setter pair
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
singletonIdentifier → Object?: final
singletonIdentifyByInstance → bool: final
stream → Stream<T>: Stream to wrap listen calls.
final
subscription → StreamSubscription<T>?: The last stream.listen StreamSubscription.
no setter

cancel() → void: Cancels subscription;
listen() → bool: Calls stream.listen and sets subscription.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
onDataWrapper(T event) → void: Wrapper for event.
onDoneWrapper() → void: Wrapper called when done.
onErrorWrapper(Object error, StackTrace stackTrace) → void: Wrapper for error.
onEvent(T? event, Object? error, StackTrace? stackTrace) → void: Wrapper for any event or error.
toString() → String: A string representation of this object.
inherited