start(when:reachesProgress:)
Starts running the animation represented by the receiver when another animation reaches a specific progress mark.
Declaration
func start(when animation: NSAnimation, reachesProgress startProgress: NSAnimation.Progress)Parameters
- animation:
The other
NSAnimationobject with which the receiver is linked. - startProgress:
A
floatvalue (typed as NSAnimationProgress) that specifies a progress mark of the other animation.
Discussion
This method links the running of two animations together. You can set only one NSAnimation object as a start animation and one as a stop animation at any one time. Setting a new start animation removes any animation previously set.