UIViewAnimateWithDuration completion never called...

UIButton Animation not working...

performSelector:withObject:afterDelay: performs animation without animation...

UIView animating one constraint affects another constraint...

"Implicit conversion from enumeration type" for animateWithDuration...

animateWithDuration can't fade in and out...

How to return BOOL from animateWithDuration?...

Weird behaviour happens when using UIView animate and CGAffineTransform...

custom segue orientation not using the proper orientation in landscape...