OneFrameImageStreamCompleter class - painting library

Constructors

OneFrameImageStreamCompleter(Future<ImageInfo> image, {InformationCollector? informationCollector}): Creates a manager for one-frame ImageStreams.

Properties

debugLabel ↔ String?: A string identifying the source of the underlying image.
getter/setter pairinherited
hashCode → int: The hash code for this object.
no setterinherited
hasListeners → bool: Whether any listeners are currently registered.
no setterinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited

Methods

addEphemeralErrorListener(ImageErrorListener listener) → void: Adds an error listener callback that is called when the first error is reported.
inherited
addListener(ImageStreamListener listener) → void: Adds a listener callback that is called whenever a new concrete ImageInfo object is available or an error is reported. If a concrete image is already available, or if an error has been already reported, this object will notify the listener synchronously.
inherited
addOnLastListenerRemovedCallback(VoidCallback callback) → void: Adds a callback to call when removeListener results in an empty list of listeners and there are no keepAlive handles outstanding.
inherited
debugFillProperties(DiagnosticPropertiesBuilder description) → void: Accumulates a list of strings describing the object's state. Subclasses should override this to have their information included in toString.
inherited
keepAlive() → ImageStreamCompleterHandle: Creates an ImageStreamCompleterHandle that will prevent this stream from being disposed at least until the handle is disposed.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
removeListener(ImageStreamListener listener) → void: Stops the specified listener from receiving image stream events.
inherited
removeOnLastListenerRemovedCallback(VoidCallback callback) → void: Removes a callback previously supplied to addOnLastListenerRemovedCallback.
inherited
reportError({DiagnosticsNode? context, required Object exception, StackTrace? stack, InformationCollector? informationCollector, bool silent = false}) → void: Calls all the registered error listeners to notify them of an error that occurred while resolving the image.
inherited
reportImageChunkEvent(ImageChunkEvent event) → void: Calls all the registered ImageChunkListeners (listeners with an ImageStreamListener.onChunk specified) to notify them of a new ImageChunkEvent.
inherited
setImage(ImageInfo image) → void: Calls all the registered listeners to notify them of a new image.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode: Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String: A string representation of this object.
inherited
toStringShort() → String: A brief description of this object, usually just the runtimeType and the hashCode.
inherited

Operators

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