[英]Multipeer Connectivity how to get the name of the advertising peer?
iOS12 Swift 5.x iOS12 Swift 5.x
I using Multipeer Connectivity. 我使用Multipeer Connectivity。 So far it works well, if I connect my devices in the correct order. 到目前为止,如果我以正确的顺序连接我的设备,它运行良好。
Using boiler plate code, tracked down the problem to here. 使用锅炉板代码,将问题追踪到这里。
func setupStream() {
do {
outputStream = try session.startStream(withName: "chat", toPeer: session.connectedPeers.first!)
for debug in session.connectedPeers {
print("Peer connected \(debug.displayName)")
}
} catch {
print("unable to open stream")
}
if let outputStream = outputStream {
outputStream.delegate = self
outputStream.schedule(in: RunLoop.main, forMode:RunLoop.Mode.default)
outputStream.open()
}
}
Now if I start the advertiser first, and then the browsers... it works well, very well. 现在,如果我首先启动广告客户,然后是浏览器...它运行良好,非常好。 But if I start the browsers BEFORE the advertiser, they seem to see each other... even if I am not advertising from them and the service from them and connect to the wrong client. 但是,如果我在广告客户之前启动浏览器,他们似乎互相看到了......即使我不是从他们那里做广告,也不是来自他们的服务并连接到错误的客户端。
How to say connect to the peer adverting the service and not anybody and everybody you find... 怎么说连接到同行广告服务而不是任何人和你找到的每个人...
iOS 12, Swift 5 iOS 12,Swift 5
Found a solution which I post here, a nice simple one. 找到了我在这里发布的解决方案,一个很简单的解决方案。 When I advertised the service I do so with some discovery info. 当我通过一些发现信息来宣传该服务时。 The key here, the discover variable. 这里的关键是发现变量。
Block looks this. Block看起来如此。
class ColorService : NSObject {
lazy var session : MCSession = {
let session = MCSession(peer: self.myPeerId, securityIdentity: nil, encryptionPreference: .required)
session.delegate = self
return session
}()
var delegate : ColorServiceDelegate?
// Service type must be a unique string, at most 15 characters long
// and can contain only ASCII lowercase letters, numbers and hyphens.
private let ColorServiceType = "example-color"
private let myPeerId = MCPeerID(displayName: UIDevice.current.name)
private let serviceAdvertiser : MCNearbyServiceAdvertiser
override init() {
let discover:[String:String] = ["prime":myPeerId.displayName]
self.serviceAdvertiser = MCNearbyServiceAdvertiser(peer: myPeerId, discoveryInfo: discover, serviceType: ColorServiceType)
super.init()
self.serviceAdvertiser.delegate = self
self.serviceAdvertiser.startAdvertisingPeer()
}
deinit {
self.serviceAdvertiser.stopAdvertisingPeer()
}
func stopAdvertising() {
self.serviceAdvertiser.stopAdvertisingPeer()
}
On the other side, when I am looking for the service, I only invite peers who have the discovering set, obviously using said info as the peer to invite. 另一方面,当我正在寻找服务时,我只邀请具有发现集的同伴,显然使用所述信息作为同伴邀请。
extension ColorSearch : MCNearbyServiceBrowserDelegate {
func browser(_ browser: MCNearbyServiceBrowser, didNotStartBrowsingForPeers error: Error) {
NSLog("%@", "didNotStartBrowsingForPeers: \(error)")
}
func browser(_ browser: MCNearbyServiceBrowser, foundPeer peerID: MCPeerID, withDiscoveryInfo info: [String : String]?) {
NSLog("%@", "foundPeer: \(peerID)")
NSLog("%@", "invitePeer: \(peerID)")
NSLog("%@", "discoverInfo: \(info)")
primePeer = info!["prime"]
if primePeer != nil {
if peerID.displayName == primePeer {
browser.invitePeer(peerID, to: self.session, withContext: nil, timeout: 10)
}
}
}
func browser(_ browser: MCNearbyServiceBrowser, lostPeer peerID: MCPeerID) {
NSLog("%@", "lostPeer: \(peerID)")
}
func disconnect() {
self.session.disconnect()
}
And I don't get a matrix of connections, I get a single master and a bunch of slaves. 我没有连接矩阵,我得到一个主人和一堆奴隶。 Maybe not what multipeerconnectivity was intended, but a good solution never the less. 也许不是多重连接的意图,但一个好的解决方案永远不会少。
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