DeferredTargetAnimation

@ExperimentalAnimatableApi
public class DeferredTargetAnimation<T, V : AnimationVector>(
    private val vectorConverter: TwoWayConverter<T, V>
)

DeferredTargetAnimation is intended for animations where the target is unknown at the time of instantiation. Such use cases include, but are not limited to, size or position animations created during composition or the initialization of a Modifier.Node, yet the target size or position stays unknown until the later measure and placement phase.

DeferredTargetAnimation offers a declarative updateTarget function, which requires a target to either set up the animation or update the animation, and to read the current value of the animation.

Functions

public fun updateTarget(
        target: T,
        coroutineScope: CoroutineScope,
        animationSpec: FiniteAnimationSpec<T> = spring(),
    ): T

updateTarget sets up an animation, or updates an already running animation, based on the target in the given coroutineScope. pendingTarget will be updated to track the last seen target.

updateTarget will return the current value of the animation after launching the animation in the given coroutineScope.

Returns