Swift 中的 GCDAsyncSocket

我想使用基于 ELM327 芯片的 OBD 加密狗打开 TCP 连接。所以我决定使用GCDAsyncSocket库。我写了这段代码，

import UIKit
import CocoaAsyncSocket

class ViewController: UIViewController, GCDAsyncSocketDelegate {

    let addr = "192.168.0.10"
    let port:UInt16 = 35000
    var socket:GCDAsyncSocket!

    override func viewDidLoad() {
        super.viewDidLoad()
        socket = GCDAsyncSocket(delegate: self, delegateQueue: dispatch_get_main_queue())
        do {
           try socket.connectToHost(addr, onPort: port)
        } catch let e {
           print(e)
        }

    // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
       // Dispose of any resources that can be recreated.
    }

    @IBAction func connect(sender: AnyObject) {
      print("Clicked")
    }

   func socket(socket : GCDAsyncSocket, didConnectToHost host:String, port p:UInt16)
   {
       print("Connected to \(addr) on port \(port).")
   }
}

但是当我运行代码时，函数：

func socket(socket : GCDAsyncSocket, didConnectToHost host:String, port p:UInt16)

永远不会跑。

哪里有问题？

任何人都可以建议我如何传输和接收文字字节字符串。

Thanks

我也遇到了问题，我按照下面的方法解决了。

您必须使类继承自 NSObject。

import Foundation
import CocoaAsyncSocket

public class MySocket: NSObject, AsyncSocketDelegate {

    var mSocket: AsyncSocket!

    override init() {
        super.init()

        let mSocket = AsyncSocket.init(delegate: self)
        do {
            print("Connecing to socket server...")
            try mSocket.connectToHost("google.com", onPort: 80)
        } catch let error {
            print(error)
        }
    }

    @objc public func onSocket(sock: AsyncSocket!, didConnectToHost host: String!, port: UInt16) {
        print("success")
    }

}

下面的链接可以帮助你。

在 swift 类中实现 AsyncSocket 回调 https://stackoverflow.com/questions/24217106/implement-asyncsocket-callbacks-in-a-swift-class