Swift + Reachability Class

Swift Reachability Class

import Foundation

import SystemConfiguration

public class Reachability {

    

    class func isConnectedToNetwork() -> Bool {

        

        var zeroAddress = sockaddr_in()

        zeroAddress.sin_len = UInt8(MemoryLayout<sockaddr_in>.size)

        zeroAddress.sin_family = sa_family_t(AF_INET)

        

        guard let defaultRouteReachability = withUnsafePointer(to: &zeroAddress, {

            $0.withMemoryRebound(to: sockaddr.self, capacity: 1) {

                SCNetworkReachabilityCreateWithAddress(nil, $0)

            }

        }) else {

            return false

        }

        

        var flags: SCNetworkReachabilityFlags = []

        if !SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags) {

            return false

        }

        

        let isReachable = flags.contains(.reachable)

        let needsConnection = flags.contains(.connectionRequired)

        

        return (isReachable && !needsConnection)

    }

}