ios - 类型 'NSNotification.Name' 没有成员 'keyboardDidShowNotification'

Question

我在 Swift 4.2 中遇到这个错误

Type 'NSNotification.Name' has no member 'keyboardDidShowNotification'

这是我的代码:

NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardDidShow(notification:)), name: NSNotification.Name.keyboardDidShowNotification, object: nil)

下面的一个在 Swift 4 上运行良好，但在 Swift 4.2 上运行不正常

NotificationCenter.default.addObserver(self, selector: #selector(self.keyboardDidShow(notification:)), name: NSNotification.Name.UIKeyboardDidShow, object: nil)

Apple 文档引用:NSNotification.Name.keyboardDidShowNotification

Answer 1

我相信你现在是这样使用它的。

NotificationCenter.default.addObserver(
    self, 
    selector: #selector(self.keyboardDidShow(notification:)), 
    name: UIResponder.keyboardDidShowNotification, object: nil) 

/* You can substitute UIResponder with any of it's subclass */

它在 UIResponder 中列出 doc作为类型属性。