背景：

iOS11后蘋果提供 NEHotspotConfigurationManager 類直連周邊Wi-Fi，iOS11前只能跳轉(zhuǎn)到系統(tǒng)設(shè)置界面手動連接Wi-Fi 。

1. 前往開發(fā)者中心給AppID配置連接WIFI權(quán)限

20181021151112874.jpeg

2. Xcode - General - Libraries - 引入NetworkExtension

   
   
   截屏2022-07-12 08.59.34.png

3. 前往Signing & Capabilities 添加Capability

   
   
   截屏2022-07-12 09.00.53.png

4. Code 代碼

/// 通過WiFi名稱和密碼連接到指定WiFi
    /// - Parameters:
    ///   - ssid: WiFi SSID
    ///   - pwd: WiFi密碼
    ///   - isWEP: 是否是WEP模式
    ///   - complete: 連接成功返回Yes, 失敗返回False
    public static func connectWithSSIDAndPwd(
        ssid: String,
        pwd: String,
        isWEP: Bool = false,
        complete: ((Bool, NEHotspotConfigurationError?) -> Void)?) {

        let config = NEHotspotConfiguration.init(ssid: ssid, passphrase: pwd, isWEP: isWEP)
        NEHotspotConfigurationManager.shared.apply(config) { (error) in
            var isSuccess = false

            if error == nil {
                let currentSSID = getWiFiSSID()
                if currentSSID == ssid {
                    isSuccess = true
                } else {
                    isSuccess = false
                }
            } else {
                isSuccess = false
                XCGLog.info(error as Any)
            }

            //存在已經(jīng)連接的情況，error code = 13 優(yōu)先考慮isSuccess
            if isSuccess {
                complete?(isSuccess, nil)
            } else {
                // 將連接wifi api返回的error 轉(zhuǎn)化為 NEHotspotConfigurationError 類型
                let errorCode = error != nil ? NEHotspotConfigurationError.init(
                    rawValue: ((error as NSError?)?.code)!
                ) : nil
                if errorCode == .alreadyAssociated {
                    isSuccess = true
                }
                complete?(isSuccess, errorCode)
            }
        }
    }

    /// 獲取iPhone當(dāng)前連接的WiFi SSID
    /// - Returns: SSID
    public static func getWiFiSSID() -> String? {

        if #available(iOS 13.0, *) {
            //系統(tǒng)版本高于13.0 未開啟地理位置權(quán)限 需要提示一下
            if CLLocationManager.authorizationStatus() == CLAuthorizationStatus.notDetermined {
                let locationManager = CLLocationManager()
                locationManager.requestWhenInUseAuthorization()
            }
        }

        if let interfaces = CNCopySupportedInterfaces(),
            let interfacesArray = CFBridgingRetain(interfaces) as? [AnyObject],
            interfacesArray.isEmpty == false {
            let interfaceName: CFString = interfacesArray[0] as! CFString
            let ussafeInterfaceData = CNCopyCurrentNetworkInfo(interfaceName)
            let interfaceData = ussafeInterfaceData as? [String: Any]
            let ssid = interfaceData?["SSID"] as? String
            XCGLog.info("Get SSID is: \(ssid ?? "nil")")
            return ssid
        }
        return nil
    }

}

注意事項：

1. 每次請求自動連接時，都會有系統(tǒng)彈框請求用戶授權(quán)。
2. 在自動連接網(wǎng)絡(luò)后，可能存在網(wǎng)絡(luò)無法立即請求通的情況， 可以用輪詢方式監(jiān)聽。