An animation that is the reverse of another animation.
If the parent animation is running forward from 0.0 to 1.0, this animation is running in reverse from 1.0 to 0.0.
Using a ReverseAnimation is different from using a Tween with a
begin of 1.0 and an end of 0.0 because the tween does not change the status
or direction of the animation.
See also:
- Curve.flipped and FlippedCurve, which provide a similar effect but on Curves.
- CurvedAnimation, which can take separate curves for when the animation is going forward than for when it is going in reverse.
- Inheritance
-
- Object
- Listenable
- Animation<
double> - ReverseAnimation
- Mixed-in types
Constructors
-
ReverseAnimation(Animation<
double> parent) - Creates a reverse 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 and direction this animation is reversing.
final
- 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.
override
-
addStatusListener(
AnimationStatusListener listener) → void -
Calls listener every time the status of the animation changes.
inherited
-
clearStatusListeners(
) → void -
Removes all listeners added with addStatusListener.
inherited
-
didRegisterListener(
) → void -
Called immediately before a status listener is added via addStatusListener.
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 -
Called immediately after a status listener is removed via removeStatusListener.
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
-
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.
override
-
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