问NSNotificationCenter“错误指令”xcode6

EN

NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyBoardWillShow:", name: UIKeyboardWillShowNotification, object: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyBoardWillHide:", name: UIKeyboardWillHideNotification, object: nil)

NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("keyboardWillShow:"), name:UIKeyboardWillShowNotification, object: nil);
NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("keyboardWillHide:"), name:UIKeyboardWillHideNotification, object: nil);

override func viewDidLoad() {
    super.viewDidLoad()
   NSNotificationCenter.defaultCenter().removeObserver(self, name: UIKeyboardWillShowNotification, object: nil)
    NSNotificationCenter.defaultCenter().removeObserver(self, name: UIKeyboardWillHideNotification, object: nil)

    NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyBoardWillShow:", name: UIKeyboardWillShowNotification, object: nil)
    NSNotificationCenter.defaultCenter().addObserver(self, selector: "keyBoardWillHide:", name: UIKeyboardWillHideNotification, object: nil)
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}



func keyBoardWillShow(notification: NSNotification) {
   var info:NSDictionary = notification.userInfo!
    var keyboardSize = (info[UIKeyboardFrameBeginUserInfoKey] as NSValue).CGRectValue()

    var keyboardHeight:CGFloat =  keyboardSize.height - 40

    var animationDuration:CGFloat = info[UIKeyboardAnimationDurationUserInfoKey] as CGFloat

    var contentInsets: UIEdgeInsets = UIEdgeInsetsMake(0.0, 0.0, keyboardHeight, 0.0);
    self.tableView.contentInset = contentInsets
    self.tableView.scrollIndicatorInsets = contentInsets
}



func keyBoardWillHide(notification: NSNotification) {
     self.tableView.contentInset = UIEdgeInsetsZero
    self.tableView.scrollIndicatorInsets = UIEdgeInsetsZero
}