UIView.animateWithDuration in Swift 2.0?
You are passing enum of type UIViewAnimationTransition to an argument which requires type UIViewAnimationOptions (options argument)
Here is the correct syntax with the correct enum value:
func moveSideBarToXposition(iXposition: Float) { let convertedXposition = CGFloat(iXposition) UIView.animateWithDuration(0.5, delay: 1.0, options: UIViewAnimationOptions.TransitionNone, animations: { () -> Void in self.contentView.frame = CGRectMake(convertedXposition, 20, self.contentView.frame.size.width, self.contentView.frame.size.height) }, completion: { (finished: Bool) -> Void in // you can do this in a shorter, more concise way by setting the value to its opposite, NOT value isMenuHidden = !isMenuHidden })}