# android.animation # android.animation *** ** * ** *** Kotlin\|[Java](https://developer.android.com/reference/android/animation/package-summary "View this page in Java") ## Interfaces |-------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [AnimatorListener](https://developer.android.com/reference/kotlin/android/animation/Animator.AnimatorListener) | An animation listener receives notifications from an animation. | | [AnimatorPauseListener](https://developer.android.com/reference/kotlin/android/animation/Animator.AnimatorPauseListener) | A pause listener receives notifications from an animation when the animation is[paused](https://developer.android.com/reference/kotlin/android/animation/Animator#pause())or[resumed](https://developer.android.com/reference/kotlin/android/animation/Animator#resume()). | | [TransitionListener](https://developer.android.com/reference/kotlin/android/animation/LayoutTransition.TransitionListener) | This interface is used for listening to starting and ending events for transitions. | | [TimeListener](https://developer.android.com/reference/kotlin/android/animation/TimeAnimator.TimeListener) | Implementors of this interface can set themselves as update listeners to a`TimeAnimator`instance to receive callbacks on every animation frame to receive the total time since the animator started and the delta time since the last frame. | | [TimeInterpolator](https://developer.android.com/reference/kotlin/android/animation/TimeInterpolator) | A time interpolator defines the rate of change of an animation. | | [TypeEvaluator](https://developer.android.com/reference/kotlin/android/animation/TypeEvaluator) | Interface for use with the[ValueAnimator.setEvaluator(TypeEvaluator)](https://developer.android.com/reference/kotlin/android/animation/ValueAnimator#setEvaluator(android.animation.TypeEvaluator))function. | | [AnimatorUpdateListener](https://developer.android.com/reference/kotlin/android/animation/ValueAnimator.AnimatorUpdateListener) | Implementors of this interface can add themselves as update listeners to an`ValueAnimator`instance to receive callbacks on every animation frame, after the current frame's values have been calculated for that`ValueAnimator`. | | [DurationScaleChangeListener](https://developer.android.com/reference/kotlin/android/animation/ValueAnimator.DurationScaleChangeListener) | Listener interface for the system-wide scaling factor for Animator-based animations. | ## Classes |---------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [Animator](https://developer.android.com/reference/kotlin/android/animation/Animator) | This is the superclass for classes which provide basic support for animations which can be started, ended, and have`AnimatorListeners`added to them. | | [AnimatorInflater](https://developer.android.com/reference/kotlin/android/animation/AnimatorInflater) | This class is used to instantiate animator XML files into Animator objects. | | [AnimatorListenerAdapter](https://developer.android.com/reference/kotlin/android/animation/AnimatorListenerAdapter) | This adapter class provides empty implementations of the methods from[android.animation.Animator.AnimatorListener](https://developer.android.com/reference/kotlin/android/animation/Animator.AnimatorListener). | | [AnimatorSet](https://developer.android.com/reference/kotlin/android/animation/AnimatorSet) | This class plays a set of[Animator](https://developer.android.com/reference/kotlin/android/animation/Animator)objects in the specified order. | | [ArgbEvaluator](https://developer.android.com/reference/kotlin/android/animation/ArgbEvaluator) | This evaluator can be used to perform type interpolation between integer values that represent ARGB colors. | | [BidirectionalTypeConverter](https://developer.android.com/reference/kotlin/android/animation/BidirectionalTypeConverter) | Abstract base class used convert type T to another type V and back again. | | [FloatArrayEvaluator](https://developer.android.com/reference/kotlin/android/animation/FloatArrayEvaluator) | This evaluator can be used to perform type interpolation between`float[]`values. | | [FloatEvaluator](https://developer.android.com/reference/kotlin/android/animation/FloatEvaluator) | This evaluator can be used to perform type interpolation between`float`values. | | [IntArrayEvaluator](https://developer.android.com/reference/kotlin/android/animation/IntArrayEvaluator) | This evaluator can be used to perform type interpolation between`int[]`values. | | [IntEvaluator](https://developer.android.com/reference/kotlin/android/animation/IntEvaluator) | This evaluator can be used to perform type interpolation between`int`values. | | [Keyframe](https://developer.android.com/reference/kotlin/android/animation/Keyframe) | This class holds a time/value pair for an animation. | | [LayoutTransition](https://developer.android.com/reference/kotlin/android/animation/LayoutTransition) | This class enables automatic animations on layout changes in ViewGroup objects. | | [ObjectAnimator](https://developer.android.com/reference/kotlin/android/animation/ObjectAnimator) | This subclass of[ValueAnimator](https://developer.android.com/reference/kotlin/android/animation/ValueAnimator)provides support for animating properties on target objects. | | [PointFEvaluator](https://developer.android.com/reference/kotlin/android/animation/PointFEvaluator) | This evaluator can be used to perform type interpolation between`PointF`values. | | [PropertyValuesHolder](https://developer.android.com/reference/kotlin/android/animation/PropertyValuesHolder) | This class holds information about a property and the values that that property should take on during an animation. | | [RectEvaluator](https://developer.android.com/reference/kotlin/android/animation/RectEvaluator) | This evaluator can be used to perform type interpolation between`Rect`values. | | [StateListAnimator](https://developer.android.com/reference/kotlin/android/animation/StateListAnimator) | Lets you define a number of Animators that will run on the attached View depending on the View's drawable state. | | [TimeAnimator](https://developer.android.com/reference/kotlin/android/animation/TimeAnimator) | This class provides a simple callback mechanism to listeners that is synchronized with all other animators in the system. | | [TypeConverter](https://developer.android.com/reference/kotlin/android/animation/TypeConverter) | Abstract base class used convert type T to another type V. | | [ValueAnimator](https://developer.android.com/reference/kotlin/android/animation/ValueAnimator) | This class provides a simple timing engine for running animations which calculate animated values and set them on target objects. |