NSNotificationCenter在Swift中添加addObserver,同时调用私有方法

Question

我使用addObserverAPI来接收通知:

NSNotificationCenter.defaultCenter().addObserver(self, selector: "methodOFReceivedNotication:", name:"NotificationIdentifier", object: nil)    

我的方法是:

func methodOFReceivedNotication(notification: NSNotification){
//Action take on Notification
}    

是的,它有效!但是当我将方法更改methodOFReceivedNotication为私有时:

private func methodOFReceivedNotication(notification: NSNotification){
//Action take on Notification
}    

xCode发给我一个错误: unrecognized selector sent to instance

如何在目标时调用私有方法self？我不想将methodOFReceivedNotication方法暴露给任何其他人.

Answer 1

只需dynamic使用修饰符标记它,或使用@objc方法声明中的属性

dynamic private func methodOFReceivedNotication(notification: NSNotification){
    //Action take on Notification
}

要么

@objc private func methodOFReceivedNotication(notification: NSNotification){
    //Action take on Notification
}

Answer 2

你考虑过用过-addObserverForName:object:queue:usingBlock:吗？

NSNotificationCenter.defaultCenter().addObserverForName("NotificationIdentifier", object: nil, queue: nil, usingBlock: {
    [unowned self] note in
    self.methodOFReceivedNotication(note)
})

或者不是调用私有方法,只是执行操作.

NSNotificationCenter.defaultCenter().addObserverForName("NotificationIdentifier", object: nil, queue: nil, usingBlock: {
    [unowned self] note in
    // Action take on Notification
})