Convert NSNotification.userInfo[UIKeyboardAnimationCurveUserInfoKey] to Enum

Question

Using NSNumber from NSNotification.userInfo[UIKeyboardAnimationCurveUserInfoKey]

In Objective C I would do the following

 [UIView animateWithDuration:1.0         


        

Answer 1

You have to init a UIViewAnimationOptions with the rawValue like this:

UIView.animateWithDuration(1.0, delay: 0, options: UIViewAnimationOptions.init(rawValue:UInt(curveValue.intValue << 16)),