ListenerWrapper<T> class
Wraps Stream listen call.
Useful to create a one shot listener or extend and introduce different behaviors.
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.
Properties
- cancelOnError → bool
-
final
- errorCount → int
-
no setter
- eventCount → int
-
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- isListening → bool
-
Returns
trueif listening.no setter - onData → void Function(T event)
-
final
- onDone → void Function()?
-
final
- onError → Function?
-
final
- oneShot ↔ bool
-
If
truewill 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
Methods
-
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
eventorerror. -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited