Lazy

An AnimationTrigger that defers animation start until start is called explicitly.

Useful for items in a scrollable collection where animations should only play once the item becomes visible on screen. Prefer useLazyAnimationTrigger to create a stable instance across renders.

start latches. Each retarget hands onReady a new AnimationHandle — the handle is a one-shot command, so all durable state lives here on the trigger — and once started, this trigger starts each new handle on arrival. Without that latch a group whose children settle at different times would tear: a retarget re-gates only the settled children, while the siblings already receiving frames keep animating toward the new target.