Change animation time for properties of a CALayer

Question

I have a CALayer to animate a change in its image contents. Now, how can I change how long it takes for this animation to take place?

Answer 1

You can just call:

[CATransaction setAnimationDuration:durationSecs] 

in -layoutSublayers or anywhere else that you modify the layers and expect them to implicitly animate. This will effect the current implicit transaction and any sub-transactions within this one.