多对等连接自定义邀请

Question

对于多对等连接，有什么方法可以自定义广告主邀请吗？显示"iPhone用户想要连接"的UIalert我想更改它以说其他内容？我已经尝试过了，但我不断收到错误。

我的代码在下面，我在底部分离了自定义邀请。

MPC 处理程序：

class MPCHANDLER: NSObject, MCSessionDelegate {
    var peerID:MCPeerID!
    var session:MCSession!
    var browser:MCBrowserViewController!
    var advertiser:MCAdvertiserAssistant? = nil
    var invitationHandler: ((Bool, MCSession?)->Void)!
    func setupPeerWithDisplayName (_ displayName:String){
        peerID = MCPeerID(displayName: displayName)
    }
    func setupSession(){
        session = MCSession(peer: peerID)
        session.delegate = self
    }
    func setupBrowser(){
        browser = MCBrowserViewController(serviceType: "game", session: session)
    }
    func advertiseSelf(_ advertise:Bool){
        if advertise{
            advertiser = MCAdvertiserAssistant(serviceType: "game", discoveryInfo: nil, session: session)
            advertiser!.start()
        }else{
            advertiser!.stop()
            advertiser = nil
        }
    }

    func session(_ session: MCSession, peer peerID: MCPeerID, didChange state: MCSessionState) {
        let userInfo = ["peerID":peerID,"state":state.rawValue] as [String : Any]
        DispatchQueue.main.async(execute: { () -> Void in
            NotificationCenter.default.post(name: Notification.Name(rawValue: "MPC_DidChangeStateNotification"), object: nil, userInfo: userInfo)
        })
    }
    func session(_ session: MCSession, didReceive data: Data, fromPeer peerID: MCPeerID) {
        let userInfo = ["data":data, "peerID":peerID] as [String : Any]
        DispatchQueue.main.async(execute: { () -> Void in
            NotificationCenter.default.post(name: Notification.Name(rawValue: "MPC_DidReceiveDataNotification"), object: nil, userInfo: userInfo)
        })
    }
    func session(_ session: MCSession, didFinishReceivingResourceWithName resourceName: String, fromPeer peerID: MCPeerID, at localURL: URL, withError error: Error?) {
    }
    func session(_ session: MCSession, didStartReceivingResourceWithName resourceName: String, fromPeer peerID: MCPeerID, with progress: Progress) {
    }
    func session(_ session: MCSession, didReceive stream: InputStream, withName streamName: String, fromPeer peerID: MCPeerID) {
    }

}

视图控制器：

var currentPlayer:String!
var appDelegate:AppDelegate!
override func viewDidLoad() {
    super.viewDidLoad()

    appDelegate = UIApplication.shared.delegate as! AppDelegate
    appDelegate.MPCHandler.setupPeerWithDisplayName(UIDevice.current.name)
    appDelegate.MPCHandler.setupSession()
    appDelegate.MPCHandler.advertiseSelf(true)
    NotificationCenter.default.addObserver(self, selector: #selector(ViewController.peerChangedStateWithNotification(_:)), name: NSNotification.Name(rawValue: "MPC_DidChangeStateNotification"), object: nil)
    NotificationCenter.default.addObserver(self, selector: #selector(ViewController.handleReceivedDataWithNotification(_:)), name: NSNotification.Name(rawValue: "MPC_DidReceiveDataNotification"), object: nil)
  }
@IBAction func LINK(_ sender: Any) {
    if appDelegate.MPCHandler.session != nil{
        appDelegate.MPCHandler.setupBrowser()
        appDelegate.MPCHandler.browser.delegate = self
        self.present(appDelegate.MPCHandler.browser, animated: true, completion: nil)
}
   }
           func peerChangedStateWithNotification(_ notification: Notification) 
{
    let userInfo = notification.userInfo!
    let state = userInfo["state"] as! Int
    if state != MCSessionState.connecting.rawValue{
        self.navigationItem.title = "Connected"
    }
}
        func handleReceivedDataWithNotification(_ notification: Notification) {
    let userInfo = notification.userInfo!
    print(userInfo)
}
     func browserViewControllerDidFinish(_ browserViewController: MCBrowserViewController) {
    appDelegate.MPCHandler.browser.dismiss(animated: true, completion: nil)
}
         func browserViewControllerWasCancelled(_ browserViewController: MCBrowserViewController) {
    appDelegate.MPCHandler.browser.dismiss(animated: true, completion: nil)
}

定制邀请函：

func invitationWasReceived(_ fromPeer: String) {
self.createAlert(title: "HI", message: "TAP TO CONNECT TO USER")
}
 func createAlert (title: String, message:String)
 {
    let alert = UIAlertController(title: title, message: message, preferredStyle: UIAlertControllerStyle.alert)
    alert.addAction(UIAlertAction(title: output.text, style: UIAlertActionStyle.default, handler: { (action) in
  }
  }

Answer 1

MCAdvertiserAssistant是一个高级类。它本身实现大多数低级操作，包括邀请警报。要创建自定义邀请提醒，您必须改用MCNearbyServiceAdvertiser作为广告客户。

定义广告客户：

var advertiser: MCNearbyServiceAdvertiser!

初始化：

advertiser = MCNearbyServiceAdvertiser(peer: peerID, discoveryInfo: nil, serviceType: "hello-world")
advertiser.delegate = self
advertiser.startAdvertisingPeer()

并在委托功能中显示警报：

func advertiser(_ advertiser: MCNearbyServiceAdvertiser, didReceiveInvitationFromPeer peerID: MCPeerID, withContext context: Data?, invitationHandler: @escaping (Bool, MCSession?) -> Void) {
    // Show custom alert here
}