Swift를 사용하는 Bonjour Service Browser가 serviceinfo를 가져 오지 않습니다.

Question

연결하려는 서비스가 Bonjour를 통해 게시되었습니다.
Bonjour 브라우저를 사용하여 모든 정보를 찾을 수 있지만 프로그래밍 방식으로 데이터를 수집하려고하면 얻을 수있는 유일한 가치는 서비스 이름입니다.

NetService 대리인이 설정되고 netServiceWillPublish 함수가 호출됩니다. DidNotPublish 또는 DidPublish 함수가 실행되지 않습니다.

netServiceBrowser 함수는 게시 된 모든 netServices를 가져 오지만 모든 속성은 데이터 유형의 기본값으로 설정됩니다.

import UIKit 

class BMNSDelegate : NSObject, NetServiceDelegate { 
    func netServiceWillPublish(_ sender: NetService) { 
     print("netServiceWillPublish:\(sender)"); //This method is called 
    } 


    func netService(_ sender: NetService, didNotPublish errorDict: [String : NSNumber]){ 
     print("didNotPublish:\(sender)"); 
    } 

    func netServiceDidPublish(_ sender: NetService) { 
     print("netServiceDidPublish:\(sender)"); 
    } 
    func netServiceWillResolve(_ sender: NetService) { 
     print("netServiceWillResolve:\(sender)"); 
    } 

    func netService(_ sender: NetService, didNotResolve errorDict: [String : NSNumber]) { 
     print("netServiceDidNotResolve:\(sender)"); 
    } 

    func netServiceDidResolveAddress(_ sender: NetService) { 
     print("netServiceDidResolve:\(sender)"); 
    } 

    func netService(_ sender: NetService, didUpdateTXTRecord data: Data) { 
     print("netServiceDidUpdateTXTRecordData:\(sender)"); 
    } 

    func netServiceDidStop(_ sender: NetService) { 
     print("netServiceDidStopService:\(sender)"); 
    } 

    func netService(_ sender: NetService, 
        didAcceptConnectionWith inputStream: InputStream, 
        outputStream stream: OutputStream) { 
     print("netServiceDidAcceptConnection:\(sender)"); 
    } 
} 

class BMBrowserDelegate : NSObject, NetServiceBrowserDelegate, NetServiceDelegate { 

    func netServiceBrowser(_ netServiceBrowser: NetServiceBrowser, 
          didFind netService: NetService, 
          moreComing moreServicesComing: Bool) { 
     let nsnsdel = BMNSDelegate() 
     netService.delegate = nsnsdel 
     netService.resolve(withTimeout: 1) 
     print(netService.domain) // local. 
     print(netService.name) // This property is correct 
     print(netService.type) // _http._tcp. 
     print(netService.addresses) // Optional([]) 
     print(netService.hostName) // nil 
     print(netService.port) // -1 
     print(moreServicesComing) //false 
    } 

} 


let SERVICE_TYPE = "_http._tcp." 
let BM_DOMAIN = "local." 
let browser = NetServiceBrowser() 
let nsbdel = BMBrowserDelegate() 
browser.delegate = nsbdel 
browser.searchForServices(ofType: SERVICE_TYPE, inDomain:   BM_DOMAIN) 
RunLoop.current.run() 

Answer 1

오류는 ServiceBrowserDelegate 함수에서 발견되는 서비스 어딘가에 저장 아니므 함수의 마지막 폐기된다는 점이다.

은 여기 작업 예제를 발견
https://github.com/mattneub/Programming-iOS-Book-Examples/blob/61f0c753a080040e4a74b912e6c18dd97fe8bcaa/bk2ch24p853bonjour/ch37p1101bonjour/ViewController.swift

class ViewController: UIViewController, NetServiceBrowserDelegate, NetServiceDelegate { 
var nsb : NetServiceBrowser! 
var services = [NetService]() 

@IBAction func doButton (_ sender: Any!) { 
    print("listening for services...") 
    self.services.removeAll() 
    self.nsb = NetServiceBrowser() 
    self.nsb.delegate = self 
    self.nsb.searchForServices(ofType:"_daap._tcp", inDomain: "") 
} 

func updateInterface() { 
    for service in self.services { 
     if service.port == -1 { 
      print("service \(service.name) of type \(service.type)" + 
       " not yet resolved") 
      service.delegate = self 
      service.resolve(withTimeout:10) 
     } else { 
      print("service \(service.name) of type \(service.type)," + 
       "port \(service.port), addresses \(service.addresses)") 
     } 
    } 
} 

func netServiceDidResolveAddress(_ sender: NetService) { 
    self.updateInterface() 
} 

func netServiceBrowser(_ aNetServiceBrowser: NetServiceBrowser, didFind aNetService: NetService, moreComing: Bool) { 
    print("adding a service") 
    self.services.append(aNetService) 
    if !moreComing { 
     self.updateInterface() 
    } 
} 

func netServiceBrowser(_ aNetServiceBrowser: NetServiceBrowser, didRemove aNetService: NetService, moreComing: Bool) { 
    if let ix = self.services.index(of:aNetService) { 
     self.services.remove(at:ix) 
     print("removing a service") 
     if !moreComing { 
      self.updateInterface() 
     } 
    } 
    } 
}