我如何使用#selector？

Question

如何将这些语句转换为使用#selector语句。 这些语句工作正常但在Xcode中发出警告，我不喜欢。

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

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

Answer 1

在Swift 3中，它看起来像这样：

NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow(_:)), name: NSNotification.Name.UIKeyboardWillHide, object: nil)