CATransition push without fade

Question

I\'m making a navigation controller class for Mac OS X.

I want to replace the current view with a kCATransitionPush animation.
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Answer 1

I suspect you're running into implicit animations - Core Animation will automatically animate layer property changes that happen outside of your own transactions.

There's a good summary of several methods for disabling these implicit animations in these two questions:

How to disable CALayer implicit animations?

Disabling implicit animations in -[CALayer setNeedsDisplayInRect:]

...and you can read more about implicit transactions in the Core Animation docs