Re: CALayer Transitions
Re: CALayer Transitions
- Subject: Re: CALayer Transitions
- From: Kyle Sluder <email@hidden>
- Date: Mon, 16 Nov 2009 11:07:59 -0800
On Mon, Nov 16, 2009 at 11:01 AM, Matt Neuburg <email@hidden> wrote:
> Nothing here "runs contrary to the documentation." We're now talking apples
> and oranges. The "key" used in addAnimation:forKey: (such as kCATransition)
> has nothing whatever to do with the "key" that arrives in
> actionForLayer:forKey:. They both happen to be called "key" but that's all.
> The former, as I explained in my previous message, is just an arbitrary
> name, which is used just in case you need to call removeAnimationForKey:
> later, and for no other purpose. The latter is the name of a CALayer
> animatable property; that property is changing, and you are now being asked
> whether to animate that property.
You have it backwards. kCATransition is documented to be sent as the
action identifier to -actionForLayer:forKey: whenever the sublayer
tree changes. Instead, CA is only sending @"sublayers". This is
incorrect.
--Kyle Sluder
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