swift 通知的使用

通知的使用

//通知名称常量
 let NotifyChatMsgRecv = NSNotification.Name(rawValue:"notifyChatMsgRecv") 
//发送通知NotificationCenter.default.post(name:NSNotification.Name(rawValue:"notifyChatMsgRecv"), object: nil, userInfo: nil) 
//接受通知监听 
NotificationCenter.default.addObserver(self, selector:#selector(didMsgRecv(notification:)), name: NotifyChatMsgRecv, object: nil) 
//通知处理函数 
func didMsgRecv(notification:NSNotification){ 
     print("didMsgRecv: (notification.userInfo)") 
}