NSDictionary to NSData and NSData to NSDictionary in Swift

Question

I am not sure if I am using the dictionary or the data object or both incorrectly. I m trying to get used to the switch to swift but I\'m having a little trouble.

Answer 1

For Swift 4 -

let dictionaryExample : [String:AnyObject] = ["user":"UserName" as AnyObject, "pass":"password" as AnyObject, "token":"0123456789" as AnyObject, "image":0 as AnyObject]
    let dataExample : NSData = NSKeyedArchiver.archivedData(withRootObject: dictionaryExample) as NSData
    let dictionary:NSDictionary? = NSKeyedUnarchiver.unarchiveObject(with: dataExample as Data)! as? NSDictionary