ios – Swift wait activity end from one other viewcontroller

I’ve a Viewcontroller VC_B the place I hook up with Wifi through the use of “NEHotspotConfigurationManager.shared” to a particular gadget. This operate presently errors as a result of it would return nil at any time when success or failure. Please observe these hyperlinks beneath.
https://developer.apple.com/boards/thread/109412
https://stackoverflow.com/…/nehotspotconfigurationmanag...

So I’ll create a Viewcontroller VC_A, then use “pathUpdateHandler” to catch occasions at any time when the wifi connection modified. Then save wifi SSID to CURENT_SSID through the use of CoreLocation.

1. entry gadget wifi by DEVICE_SSID at VC_B.
2. wait till CURENT_SSID efficiently is up to date at VC_A.
3. evaluate DEVICE_SSID and CURRENT_SSID.

1. VC_A
// get present SSID and save to UserData.shared.current_wifi_ssid
    var ssid: String { 
        var return_ssid:String = "取得できませんでした。"
        if let interfaces = CNCopySupportedInterfaces() as NSArray? {
            for interface in interfaces {
                if let interfaceInfo = CNCopyCurrentNetworkInfo(interface as! CFString) as NSDictionary?,
                    let ssid = interfaceInfo[kCNNetworkInfoKeySSID as String] as? String {
                    return_ssid = ssid
                }
            }
        }
        
        UserData.shared.current_wifi_ssid = return_ssid
        return return_ssid
    }
//catch when having wifi connection altering occasion
    func checkNetWorking() {
        monitor.pathUpdateHandler = { path in
            if path.standing == .happy {
                self.isConnected = true
                Backend.shared.checkSignedIn {(isSignedIn: Bool) in
                    if !isSignedIn {
                        DispatchQueue.principal.async {
                            AlertHelper.displayOK(self, title: "エラー", message: "サインインしてください")
                        }
                    }
                }
                print("ssid:(self.ssid)")
            } else {
                
                //############# location - wifi
                print("ssid:(self.ssid)")
                let str = self.ssid // 0123456789
                let startIndex = str.index(str.startIndex, offsetBy: 0)
                let endIndex = str.index(str.startIndex, offsetBy: 6)
                let substring = String(str[startIndex...endIndex]) // 0123456
                
                if(substring == "THETAYN"){
                    print("THETA connecting, ignore エラー popup")
                }
                else {
                    DispatchQueue.principal.async {
                        AlertHelper.displayOK(self, title: "エラー", message: "ネットワーク通信が確認できません。圏外、もしくはwifiに正しく接続されているかご確認ください。")
                    }
                }
                //#############
                
                self.isConnected = false
                self.isNeedUpdated = true //20211204 まだ利用していない
            }
        }
    }

2. VC_B
//hook up with gadget wifi and test
    func connectTheta(ID: String){
        TableVIew.isUserInteractionEnabled = false
        SVProgressHUD.present()
        let supervisor = NEHotspotConfigurationManager.shared
        let ssid = "THETAYN" + ID + ".OSC"
        let password = ID
        let isWEP = false
        let hotspotConfiguration = NEHotspotConfiguration(ssid: ssid, passphrase: password, isWEP: isWEP)
        hotspotConfiguration.joinOnce = true
        hotspotConfiguration.lifeTimeInDays = 1

        UserData.shared.current_wifi_ssid = "NULL"
        supervisor.apply(hotspotConfiguration) { (error) in //error all the time nil
            if error != nil {
            // error
          } else {
            // success
          }
            
            check_wifi_theta();
            
            func check_wifi_theta(){
      //i am utilizing whereas right here to attend activity from VC_A
                whereas(UserData.shared.current_wifi_ssid=="NULL"){
                    Thread.sleep(forTimeInterval: 0.5)
                }
                print("ssid theta", ssid)
                print("ssid present", UserData.shared.current_wifi_ssid)
                if (UserData.shared.current_wifi_ssid==ssid){
                    print("join Theta OK")
                    AlertHelper.displayOK(self, title: "接続できました", message: "", okHandler: {_ in
                        self.navigationController?.popViewController(animated: true)
                    })
                }
                else{
                    AlertHelper.displayOK(self, title: "接続できません", message: "THETAの電源が入っている確認してください。")
                }
                self.TableVIew.isUserInteractionEnabled = true
                SVProgressHUD.dismiss()
            }
        }
    }

I’m caught at step 2 when making an attempt to attend for “pathUpdateHandler” to complete from VC_B. Typically it modifications however generally it is not.
I exploit whereas loop right here and it is solved my downside.
However I feel it is will not be your best option. Is there any higher resolution for this? Thanks!