StreamSubscription abstract class
A subscription on events from a Stream.
When you listen on a Stream using Stream.listen, a StreamSubscription object is returned.
The subscription provides events to the listener, and holds the callbacks used to handle the events. The subscription can also be used to unsubscribe from the events, or to temporarily pause the events from the stream.
Constructors
Properties
- isPaused → bool read-only
-
Returns true if the
StreamSubscription
is paused. - hashCode → int read-only, inherited
-
The hash code for this object.
- runtimeType → Type read-only, inherited
-
A representation of the runtime type of the object.
Operators
- operator ==(
other) → bool inherited -
The equality operator.
Methods
- asFuture<E>(
[E futureValue ]) → Future<E> -
Returns a future that handles the onDone and onError callbacks.
- cancel(
) → Future -
Cancels this subscription.
- onData(
void handleData(T data)) → void -
Set or override the data event handler of this subscription.
- onDone(
void handleDone()) → void -
Set or override the done event handler of this subscription.
- onError(
Function handleError) → void -
Set or override the error event handler of this subscription.
- pause(
[Future resumeSignal ]) → void -
Request that the stream pauses events until further notice.
- resume(
) → void -
Resume after a pause.
- noSuchMethod(
Invocation invocation) → dynamic inherited -
Invoked when a non-existent method or property is accessed.
- toString(
) → String inherited -
Returns a string representation of this object.
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/1.24.3/dart-async/StreamSubscription-class.html