swift中的通知

swift3中的通知进行了少许改变，仅此做一下记录
发出通知

NotificationCenter.default.post(name: NSNotification.Name(rawValue: PSNOTIFICATION_MESSAGE_SHOULDSHOW), object: nil, userInfo: [PSNOTIFICATION_BOOL_FOR_MESSAGESHOW : "YES"])

接收通知

 NotificationCenter.default.addObserver(self, selector: #selector(receiveNewMessages(notifiacation:)), name: NSNotification.Name(rawValue: PSNOTIFICATION_MESSAGE_SHOULDSHOW), object: nil)

处理消息

 func receiveNewMQMessages(notifiacation:NSNotification) {
        let judge:Bool = (notifiacation.userInfo![PSNOTIFICATION_BOOL_FOR_MESSAGESHOW] as? String) == "YES" ?  true:false;
        if judge == true {
            
        }else {
            
        }
        
    }

一切看上去没什么不同，但是确实有一点不同,因为userInfo要求的key是AnyHashable类型的

let PSNOTIFICATION_BOOL_FOR_MESSAGESHOW :AnyHashable = AnyHashable.init("BOOLFORMESSAGESHOW ")