Q:

Chain animation using core animation

I have several animations using CABasicAnimation, CATransition, CAKeyFrameAnimation.  I want these animations to animate one after the other sequentially for different layers.  i tried using CAAnimationGroup, but "CAAnimationGroup" used to provide different animation effects to the single layer. 

A:

i found that chaining of animation is possible by using object of NSTimer.  I found this bit ambiguous process, but can be used as a work around.