ProxyAnimation class

An animation that is a proxy for another animation.

A proxy animation is useful because the parent animation can be mutated. For example, one object can create a proxy animation, hand the proxy to another object, and then later change the animation from which the proxy receives its value.

Inheritance
Mixed in types

Constructors

ProxyAnimation([Animation<double>? animation])
Creates a proxy animation.

Properties

hashCode int
The hash code for this object.
no setterinherited
isAnimating bool
Whether this animation is running in either direction.
no setterinherited
isCompleted bool
Whether this animation is stopped at the end.
no setterinherited
isDismissed bool
Whether this animation is stopped at the beginning.
no setterinherited
isForwardOrCompleted bool
Whether the current aim of the animation is toward completion.
no setterinherited
isListening bool
Whether there are any listeners.
no setterinherited
parent Animation<double>?
The animation whose value this animation will proxy.
getter/setter pair
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
status AnimationStatus
The current status of this animation.
no setteroverride
value double
The current value of the animation.
no setteroverride

Methods

addListener(VoidCallback listener) → void
Calls the listener every time the value of the animation changes.
inherited
addStatusListener(AnimationStatusListener listener) → void
Calls listener every time the status of the animation changes.
inherited
clearListeners() → void
Removes all listeners added with addListener.
inherited
clearStatusListeners() → void
Removes all listeners added with addStatusListener.
inherited
didRegisterListener() → void
Calls didStartListening every time a registration of a listener causes an empty list of listeners to become non-empty.
inherited
didStartListening() → void
Called when the number of listeners changes from zero to one.
override
didStopListening() → void
Called when the number of listeners changes from one to zero.
override
didUnregisterListener() → void
Calls didStopListening when an only remaining listener is unregistered, thus making the list empty.
inherited
drive<U>(Animatable<U> child) Animation<U>
Chains a Tween (or CurveTween) to this Animation.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Calls all the listeners.
inherited
notifyStatusListeners(AnimationStatus status) → void
Calls all the status listeners.
inherited
removeListener(VoidCallback listener) → void
Stop calling the listener every time the value of the animation changes.
inherited
removeStatusListener(AnimationStatusListener listener) → void
Stops calling the listener every time the status of the animation changes.
inherited
toString() String
A string representation of this object.
override
toStringDetails() String
Provides a string describing the status of this object, but not including information about the object itself.
inherited

Operators

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