ControllerNetwork

    class func isConnectedToNetwork() -> Bool {

            var zeroAddress = sockaddr_in(sin_len: 0, sin_family: 0, sin_port: 0, sin_addr: in_addr(s_addr: 0), sin_zero: (0, 0, 0, 0, 0, 0, 0, 0))
            zeroAddress.sin_len = UInt8(MemoryLayout.size(ofValue: zeroAddress))
            zeroAddress.sin_family = sa_family_t(AF_INET)

            let defaultRouteReachability = withUnsafePointer(to: &zeroAddress) {
                $0.withMemoryRebound(to: sockaddr.self, capacity: 1) {zeroSockAddress in
                    SCNetworkReachabilityCreateWithAddress(nil, zeroSockAddress)
                }
            }

            var flags: SCNetworkReachabilityFlags = SCNetworkReachabilityFlags(rawValue: 0)
            if SCNetworkReachabilityGetFlags(defaultRouteReachability!, &flags) == false {
                return false
            }

            /* Only Working for WIFI
             let isReachable = flags == .reachable
             let needsConnection = flags == .connectionRequired

             return isReachable && !needsConnection
             */

            // Working for Cellular and WIFI
            let isReachable = (flags.rawValue & UInt32(kSCNetworkFlagsReachable)) != 0
            let needsConnection = (flags.rawValue & UInt32(kSCNetworkFlagsConnectionRequired)) != 0
            let ret = (isReachable && !needsConnection)

            return ret

    }