Test whether a UIView is in the middle of animation
A UIView has a layer (CALayer). You can send animationKeys to it, which will give you an array of keys which identify the animations attached to the layer. I suppose that if there are any entries, the animation(s) are running. If you want to dig even deeper have a look at the CAMediaTiming protocol which CALayer adopts. It does some more information on the current animation.
Important: If you add an animation with a nil key ([layer addAnimation:animation forKey:nil]), animationKeys returns nil.
iOS 9+ method, works even when layer.animationKeys contains no keys:
let isInTheMiddleOfAnimation = UIView.inheritedAnimationDuration > 0From the docs:
This method only returns a non-zero value if called within a UIView animation block.
Animations are attached in fact to the underlying Core Animation CALayer class
So I think you can just check myView.layer.animationKeys