通过个人热点Swift实现多人连接

Question

我正在使用多人游戏连接。当所有设备都连接到同一个wifi时，它可以正常工作。

我有1个主设备和5个从设备。我想连接个人热点，但每次连接都会被拒绝。我想使用个人热点将所有从属设备与主设备连接起来，以便在它们之间共享数据。

这是我的代码：

class SessionManager: NSObject, MCSessionDelegate, MCBrowserViewControllerDelegate, MCNearbyServiceAdvertiserDelegate, MCNearbyServiceBrowserDelegate {
func browser(_ browser: MCNearbyServiceBrowser, foundPeer peerID: MCPeerID, withDiscoveryInfo info: [String: String] ? ) {
browser.invitePeer(peerID, to: mcSession, withContext: nil, timeout: 10)
}
func browser(_ browser: MCNearbyServiceBrowser, lostPeer peerID: MCPeerID) {
print("Lost Peer")
}

static
let shared = SessionManager()
var peerID = MCPeerID(displayName: UIDevice.current.name)
var mcSession: MCSession!
var mcAdvertiserAssistant: MCAdvertiserAssistant!
var delegate: SessionDelegate!
var serviceBrowser: MCNearbyServiceBrowser
var serviceAdvertiser: MCNearbyServiceAdvertiser
override init() {
serviceBrowser = MCNearbyServiceBrowser(peer: peerID, serviceType: "demo")
serviceAdvertiser = MCNearbyServiceAdvertiser(peer: peerID, discoveryInfo: nil, serviceType: "demo")
super.init()
peerID = MCPeerID(displayName: UIDevice.current.name)
mcSession = MCSession(peer: peerID, securityIdentity: nil, encryptionPreference: .required)
mcSession.delegate = self
serviceBrowser.delegate = self
serviceBrowser.startBrowsingForPeers()
serviceAdvertiser.delegate = self
serviceAdvertiser.startAdvertisingPeer()
}

//MARK: Start Hosting
func startHosting() {
mcAdvertiserAssistant = MCAdvertiserAssistant(serviceType: "demo", discoveryInfo: nil, session: mcSession)
mcAdvertiserAssistant.start()
}
//MARK: Join Session
func joinSession() {
let mcBrowser = MCBrowserViewController(serviceType: "demo", session: mcSession)
mcBrowser.delegate = self
mcBrowser.navigationController ? .navigationBar.backgroundColor = .black
UINavigationBar.appearance().tintColor = .black
UIApplication.visibleViewController.present(mcBrowser, animated: true)
}
//MARK: Delegate Methods
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, fromPeer peerID: MCPeerID, at localURL: URL ? , withError error : Error ? ) {}
func browserViewControllerDidFinish(_ browserViewController: MCBrowserViewController) {
UIApplication.visibleViewController.dismiss(animated: true, completion: nil)
}
func browserViewControllerWasCancelled(_ browserViewController: MCBrowserViewController) {
UIApplication.visibleViewController.dismiss(animated: true, completion: nil)
}
func session(_ session: MCSession, peer peerID: MCPeerID, didChange state: MCSessionState) {
switch state {
case MCSessionState.connected:
print("Connected:SessionManager (peerID.displayName)")
case MCSessionState.connecting:
print("Connecting:SessionManager (peerID.displayName)")
case MCSessionState.notConnected:
print("Not Connected:SessionManager (peerID.displayName)")
}
}
func session(_ session: MCSession, didReceive data: Data, fromPeer peerID: MCPeerID) {
let sessionData = SessionModel.init(session, peerID, data)
delegate.didRecieveSessionData(sessionData)
}
func advertiser(_ advertiser: MCNearbyServiceAdvertiser, didReceiveInvitationFromPeer peerID: MCPeerID, withContext context: Data ? , invitationHandler : @escaping(Bool, MCSession ? ) - > Void) {
print("Receive Invitation")
invitationHandler(true, self.mcSession)
}
func advertiser(_ advertiser: MCNearbyServiceAdvertiser, didNotStartAdvertisingPeer error: Error) {
print("Ddn't Start")
}

}

有什么办法做这件事吗。

如有任何帮助，我们将不胜感激。

Answer 1

之前已经有人问过(但没有用)：个人热点的多人连接不工作

据我所知，MPC只是不同网络方式之上的一个抽象层。苹果使用M-DNS(Bonjour)和包括蓝牙在内的其他技术，使macOS/iOS设备之间的网络连接尽可能简单。

多人连接是一种对等解决方案，您所描述的更像是一种客户端-服务器解决方案。这并不意味着你不能成功，但记住这一点很好！这意味着您希望MPC作为网络的基本级别，并在此基础上实现客户端-服务器结构。我看不出有什么理由在使用其中一台设备作为热点时不可能做到这一点，但我认为这甚至是不必要的：Airdrop也使用MCP，当设备不在同一网络中时，它也可以工作。

这方面有一些宝贵的资源：

• https://www1.in.tum.de/lehrstuhl_1/teaching/tutorials/508-sgd-ws13-tutorial-multiplayer-games
• https://developer.apple.com/documentation/multipeerconnectivity
• https://www.appcoda.com/chat-app-swift-tutorial/