VectorizedRepeatableSpec


This animation takes another VectorizedDurationBasedAnimationSpec and plays it iterations times. For infinitely repeating animation spec, VectorizedInfiniteRepeatableSpec is recommended.

Note: When repeating in the RepeatMode.Reverse mode, it's highly recommended to have an odd number of iterations. Otherwise, the animation may jump to the end value when it finishes the last iteration.

initialStartOffset can be used to either delay the start of the animation or to fast forward the animation to a given play time. This start offset will not be repeated, whereas the delay in the animation (if any) will be repeated. By default, the amount of offset is 0.

Summary

Public constructors

<V : AnimationVector> VectorizedRepeatableSpec(
    iterations: Int,
    animation: VectorizedDurationBasedAnimationSpec<V>,
    repeatMode: RepeatMode,
    initialStartOffset: StartOffset
)
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Public functions

open Long
getDurationNanos(initialValue: V, targetValue: V, initialVelocity: V)

Calculates the duration of an animation.

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open V
getValueFromNanos(
    playTimeNanos: Long,
    initialValue: V,
    targetValue: V,
    initialVelocity: V
)

Calculates the value of the animation at given the playtime, with the provided start/end values, and start velocity.

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open V
getVelocityFromNanos(
    playTimeNanos: Long,
    initialValue: V,
    targetValue: V,
    initialVelocity: V
)

Calculates the velocity of the animation at given the playtime, with the provided start/end values, and start velocity.

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Inherited functions

From androidx.compose.animation.core.VectorizedAnimationSpec
open V
getEndVelocity(initialValue: V, targetValue: V, initialVelocity: V)

Calculates the end velocity of the animation with the provided start/end values, and start velocity.

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Inherited properties

From androidx.compose.animation.core.VectorizedFiniteAnimationSpec
open Boolean

Whether or not the VectorizedAnimationSpec specifies an infinite animation.

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Public constructors

VectorizedRepeatableSpec

<V : AnimationVector> VectorizedRepeatableSpec(
    iterations: Int,
    animation: VectorizedDurationBasedAnimationSpec<V>,
    repeatMode: RepeatMode = RepeatMode.Restart,
    initialStartOffset: StartOffset = StartOffset(0)
)
Parameters
iterations: Int

the count of iterations. Should be at least 1.

animation: VectorizedDurationBasedAnimationSpec<V>

the VectorizedAnimationSpec describing each repetition iteration.

repeatMode: RepeatMode = RepeatMode.Restart

whether animation should repeat by starting from the beginning (i.e. RepeatMode.Restart) or from the end (i.e. RepeatMode.Reverse)

initialStartOffset: StartOffset = StartOffset(0)

offsets the start of the animation

Public functions

getDurationNanos

open fun getDurationNanos(initialValue: V, targetValue: V, initialVelocity: V): Long

Calculates the duration of an animation. For duration-based animations, this will return the pre-defined duration. For physics-based animations, the duration will be estimated based on the physics configuration (such as spring stiffness, damping ratio, visibility threshold) as well as the initialValue, targetValue values, and initialVelocity.

Parameters
initialValue: V

start value of the animation

targetValue: V

end value of the animation

initialVelocity: V

start velocity of the animation

getValueFromNanos

open fun getValueFromNanos(
    playTimeNanos: Long,
    initialValue: V,
    targetValue: V,
    initialVelocity: V
): V

Calculates the value of the animation at given the playtime, with the provided start/end values, and start velocity.

Parameters
playTimeNanos: Long

time since the start of the animation

initialValue: V

start value of the animation

targetValue: V

end value of the animation

initialVelocity: V

start velocity of the animation

getVelocityFromNanos

open fun getVelocityFromNanos(
    playTimeNanos: Long,
    initialValue: V,
    targetValue: V,
    initialVelocity: V
): V

Calculates the velocity of the animation at given the playtime, with the provided start/end values, and start velocity.

Parameters
playTimeNanos: Long

time since the start of the animation

initialValue: V

start value of the animation

targetValue: V

end value of the animation

initialVelocity: V

start velocity of the animation