Question

当我的所有PubNub代码都在ViewController类或AppDelegate类中时，一切都很棒，但现在对于某些代码模块化和清理我想在一个单独的.Swift文件中将我的PubNub功能包装起来并利用那。

以下是自定义类的代码示例。实例化此类的对象只是使用一些基本信息构造，可以以JSON的形式发送消息，并且可以注册将在接收消息时执行的回调（在init期间）

使用此方法有两个问题：

当我打开Debug中的状态时，我无法看到此客户端在Pubnub中控制台，虽然它可以发布，奇怪的是
我无法接收消息并获得回调以运行

这里的问题完全有可能取决于我的面向对象的编程技巧，或者缺乏它。帮助

import Foundation
import PubNub
import SwiftyJSON

public class PubNubWrap: NSObject, PNObjectEventListener {
    /*PubNub Keys*/
    private let myPublishKey = "pub-xxx"
    private let mySubscrbeKey = "sub-xxx"

    /*Object specific properties*/
    private var client: PubNub
    private var configuration: PNConfiguration
    private var pubnubID: String
    private var roomID: String

    /*Callbacks for received messages*/
    var handleHelloMessage: () -> Void

    /*Message styles*/
    private enum PubnubMessageType : String{
        case Hello = "Hello"
    }



    //Publish a message on pubnub
    private func publish(json: NSDictionary) {
        //return an error, success, and keep retrying
        client.publish(json, toChannel: roomID, compressed: false, withCompletion: { (status) -> Void in
            if !status.error {
                //do nothing
            } else {
                //process error and/or retry
            }
        })
    }

    //Receive a message on pubnub
    public func client(client: PubNub!, didReceiveMessage message: PNMessageResult!) {
        // Handle new message stored in message.data.message
        if message.data.actualChannel != nil {
            // Message has been received on channel group stored in
            // message.data.subscribedChannel
        }
        else {
            // Message has been received on channel stored in
            // message.data.subscribedChannel
        }
        let json_recv = JSON(message.data.message)
        print(json_recv)
        if json_recv["MessageType"].isExists(){
            let mType  = json_recv["MessageType"].string! as PubnubMessageType.RawValue
            switch mType {
            case "Hello":
                handleHelloMessage()

            default :
                print("How did we get here")
            }
        }
    }


    /*Public Methods*/

    public init(pubnubID:String, room:String, setHelloHandler: () -> Void) {

        self.pubnubID = pubnubID
        self.roomID = room
        self.handleHelloMessage = setHelloHandler
        configuration = PNConfiguration(publishKey: myPublishKey , subscribeKey: mySubscrbeKey)
        configuration.uuid = self.pubnubID
        client = PubNub.clientWithConfiguration(configuration)

        super.init()

        client.subscribeToChannelGroups([self.roomID], withPresence: true)
        client.addListener(self)
    }

    public func sendHello() {
        let json = ["MessageType": PubnubMessageType.Hello.rawValue,
            "me": pubnubID]
        publish(json)
    }
}

从自定义包装类中使用PubNub Swift

0 个答案: