iOS 请求本地网络权限状态

////  KdLocalNetworkManager.swift//  ////  Created by bob bob on 2023/4/13.//import Foundationimport Network/// Uses bonjour networking to relialby check if user has granted local network access/// How to use:/// Add LocalNetworkAuthorization class to your project/// Open .plist file and add "_bonjour._tcp", "_lnp._tcp.", as a values under "Bonjour services"/// Call requestAuthorization() to trigger the prompt or get the authorization status if it already been approved/denied/// about the author: https://stackoverflow.com/a/67758105/705761public class KdLocalNetworkManager: NSObject {    private var browser: NWBrowser?    private var netService: NetService?    private var completion: ((Bool) -> Void)?        public func requestAuthorization() async -> Bool {        return await withCheckedContinuation { continuation in            requestAuthorization() { result in                continuation.resume(returning: result)            }        }    }        private func requestAuthorization(completion: @escaping (Bool) -> Void) {        self.completion = completion                    // Create parameters, and allow browsing over peer-to-peer link.        let parameters = NWParameters()        parameters.includePeerToPeer = true                    // Browse for a custom service type.        let browser = NWBrowser(for: .bonjour(type: "_bonjour._tcp", domain: nil), using: parameters)        self.browser = browser        browser.stateUpdateHandler = { newState in            switch newState {            case .failed(let error):                print(error.localizedDescription)            case .ready:                break            case .cancelled:                break            case let .waiting(error):                print("Local network permission has been denied: \(error)")                self.reset()                self.completion?(false)            default:                break            }        }                self.netService = NetService(domain: "local.", type:"_lnp._tcp.", name: "LocalNetworkPrivacy", port: 1100)        self.netService?.delegate = self                self.browser?.start(queue: .main)        self.netService?.publish()    }            private func reset() {        self.browser?.cancel()        self.browser = nil        self.netService?.stop()        self.netService = nil    }}extension KdLocalNetworkManager : NetServiceDelegate {    public func netServiceDidPublish(_ sender: NetService) {        self.reset()        print("Local network permission has been granted")        completion?(true)    }}

1 在 .plist 添加"_bonjour._tcp", “_lnp._tcp.”, 到 “Bonjour services”
2 使用，只有被拒绝时候才会回调回来

    Task.init {            do{                let isOK = try await  KdLocalNetworkManager().requestAuthorization()                print("ok")                 if(!isOK){                    let settingStrUrl = UIApplication.openSettingsURLString//"App-Prefs:root=Bluetooth"                    let alertStr = NSLocalizedString("请打开本地网络权限", comment: "")                     let url = URL(string: settingStrUrl)                        guard let url = url else{return                        }                        if(UIApplication.shared.canOpenURL(url)){UIApplication.shared.open(url)                        }                    }            }catch{                print("exception")            }        }

来源地址：https://blog.csdn.net/bobbob32/article/details/131106416