ImageStreamCompleter class

Base class for those that manage the loading of dart:ui.Image objects for ImageStreams.

ImageStreamListener objects are rarely constructed directly. Generally, an ImageProvider subclass will return an ImageStream and automatically configure it with the right ImageStreamCompleter when possible.





hasListeners bool
Whether any listeners are currently registered. [...]
@protected, read-only
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


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. [...]
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.
removeListener(ImageStreamListener listener) → void
Stops the specified listener from receiving image stream events. [...]
reportError({DiagnosticsNode context, dynamic 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. [...]
setImage(ImageInfo image) → void
Calls all the registered listeners to notify them of a new image.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
toDiagnosticsNode({String name, DiagnosticsTreeStyle style }) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep. [...]
toString({DiagnosticLevel minLevel: DiagnosticLevel.debug }) String
Returns a string representation of this object.
toStringShort() String
A brief description of this object, usually just the runtimeType and the hashCode. [...]


operator ==(dynamic other) bool
The equality operator. [...]