MultiPeer连接无法快速连接5

如何解决MultiPeer连接无法快速连接5

我正在开发一个简单的Tic Tac Toe游戏。

我正在尝试使用MultipeerConnectivity将两个设备连接在一起，这是我的代码：

AppDelegate：

var mpcHandler = MPCHandler()

MPCHandler：

class MPCHandler: NSObject {
    // Variables
    var peerID: MCPeerID!
    var session: MCSession!
    var browser: MCbrowserViewController!
    var advertiser: MCAdvertiserAssistant?
    
    // Functions
    func setupPeerWithdisplayName (displayName: String) {
        self.peerID = MCPeerID(displayName: displayName)
    }
    func setupSession() {
        self.session = MCSession(peer: self.peerID,securityIdentity: nil,encryptionPreference: MCEncryptionPreference.optional)
        self.session.delegate = self
    }
    func setupbrowser() {
        self.browser = MCbrowserViewController(serviceType: "TicTacToe",session: self.session)
    }
    func advertiseSelf(advertise: Bool) {
        if advertise {
            self.advertiser = MCAdvertiserAssistant(serviceType: "TicTacToe",discoveryInfo: nil,session: self.session)
            self.advertiser?.start()
        }
        else {
            self.advertiser?.stop()
            self.advertiser = nil
        }
    }
}

// Extensions
extension MPCHandler: MCSessionDelegate {
    func session(_ session: MCSession,peer peerID: MCPeerID,didChange state: MCSessionState) {
        switch state {
            case MCSessionState.connected:
                print("Connected: \(peerID.displayName)")

            case MCSessionState.connecting:
                print("Connecting: \(peerID.displayName)")

            case MCSessionState.notConnected:
                print("Not Connected: \(peerID.displayName)")
            }
    }
    func session(_ session: MCSession,didReceive data: Data,fromPeer peerID: MCPeerID) {
        let userInfo: [String : Any] = ["data": data,"peerID:": peerID]
        dispatchQueue.main.async {
            NotificationCenter.default.post(name: Notification.Name("deviceDidReceiveDatanotification"),object: nil,userInfo: userInfo)
        }
    }
    func session(_ session: MCSession,didReceive stream: InputStream,withName streamName: String,fromPeer peerID: MCPeerID) {
        
    }
    func session(_ session: MCSession,didStartReceivingResourceWithName resourceName: String,fromPeer peerID: MCPeerID,with progress: Progress) {
        
    }
    func session(_ session: MCSession,didFinishReceivingResourceWithName resourceName: String,at localURL: URL?,withError error: Error?) {
        
    }
}

MainVC：

var appDelegate: AppDelegate?
    
    // Overridden Functions
    override func viewDidLoad() {
        super.viewDidLoad()
        self.appDelegate = UIApplication.shared.delegate as? AppDelegate
        self.appDelegate?.mpcHandler.setupPeerWithdisplayName(displayName: UIDevice.current.name)
        self.appDelegate?.mpcHandler.setupSession()
        self.appDelegate?.mpcHandler.advertiseSelf(advertise: true)
    }

    @IBAction func barButtonpressed(_ sender: UIBarButtonItem) {
        if self.appDelegate?.mpcHandler.session != nil {
            self.appDelegate?.mpcHandler.setupbrowser()
            self.appDelegate?.mpcHandler.browser.delegate = self
            
            self.present(self.appDelegate?.mpcHandler.browser ?? UIViewController(),animated: true,completion: nil)
        }
    }

Info.plist：

为Bonjour Services添加了_TicTacToe._tcp和_TicTacToe._udp

在调试时，这些设备会找到彼此，但是在尝试连接时，连接的设备会陷入Connecting状态，而另一台设备则不会收到批准连接的通知。

几秒钟后，它表明连接被拒绝。

问题可能是什么？