如何在Swift 4中连接Socket [英] How to connect Socket in Swift 4

问题描述

我想将我的应用程序连接到套接字，这里是代码:-

I want to connect my app to the socket here is the code :-

  import UIKit
  import SocketIO

 class SocketIOManager: NSObject {
static let manager = SocketManager(socketURL: URL(string: "myURL")!)
static let socket = manager.defaultSocket


class func connectSocket() {
    let token = UserDefaults.standard.getAccessToken()

    self.manager.config = SocketIOClientConfiguration(
        arrayLiteral: .connectParams(["token": token]), .secure(true) // problem is here in passing token value
        )
        socket.connect()
}

class func receiveMsg() {
    socket.on("new message here") { (dataArray, ack) in

        print(dataArray.count)

    }
}
}

我创建了一个新类SocketIOManager.swift，并在视图控制器中调用了函数

I created a new class SocketIOManager.swift and I invoke my function in view controller

  SocketIOManager.connectSocket()

并且我没有使用localhost url，但是我的应用程序仍未连接到套接字，我想我遵循了，我还将在Info.plist中添加应用传输安全性.有什么帮助吗?问题是当我传递令牌值时，它将给我错误，否则它将正常工作.使用套接字时是否需要传递令牌?

and I am not using the localhost url but still my app is not connected to the socket I think I followed this and I also add App Transport Security in info.plist. Any help? The problem is when I am passing the token value it gives me error otherwise it is working properly. Should I need to pass token when using socket?

推荐答案

您应该像这样在您的SocketIOManager类中创建一个共享属性:

You should make a shared property in your SocketIOManager class like this:

static let shared = SocketIOManager()

，然后像这样创建init():

    var socket: SocketIOClient!

    // defaultNamespaceSocket and swiftSocket both share a single connection to the server
    let manager = SocketManager(socketURL: URL(string: "http://localhost:3000")!, config: [.log(true), .compress])

    override init() {
        super.init()

        socket = manager.defaultSocket
        }

最后编写这样的方法:

func connectSocket() {
    let token = UserDefaults.standard.getAccessToken()

    self.manager.config = SocketIOClientConfiguration(
        arrayLiteral: .connectParams(["token": token]), .secure(true)
        )
        socket.connect()
}

func receiveMsg() {
    socket.on("new message here") { (dataArray, ack) in

        print(dataArray.count)

    }
}

并像这样调用您的方法:

and call your method like this:

SocketIOManager.shared.connectSocket()

要点是，您应该在viewController中强烈引用manager属性，而static let shared = SocketIOManager()则应为您执行此操作！

The point is that you should make a strong reference to manager property in your viewController and static let shared = SocketIOManager() you do this for you!

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