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

In Beta-5

UIViewAnimationOptions.fromRaw(
    UInt(
        ( p.userInfo[ UIKeyboardAnimationCurveUserInfoKey ] as NSNumber ).unsignedIntValue << 16
    )
)!