a few animation Effect

CATransition Class

CATransition *animation = [CATransition animation];
[animation setDuration:1.0];
[animation setType:kCATransitionFade]; // use define flag
[animation setType:@"oglFlip"]; // use string flag
[animation setSubtype:kCATransitionFromLeft]; // can use to cooperate with type
[self.imageView.layer addAnimation:animation forKey:nil];

Common Transition Types:

kCATransitionFade
kCATransitionMoveIn
kCATransitionPush
kCATransitionReveal

Common Transition Subtypes:

kCATransitionFromRight
kCATransitionFromLeft
kCATransitionFromTop
kCATransitionFromBottom