Check Internet connection in Swift

Check Internet connection in Swift

- Create a new Swift file within your project, name it Reachability.swift. 

- Cut & paste the following code into it to create your class .

import Foundation

import SystemConfiguration

public class Reachability {

    class func isConnectedToNetwork() -> Bool {

        var zeroAddress = sockaddr_in()

        zeroAddress.sin_len = UInt8(sizeofValue(zeroAddress))

        zeroAddress.sin_family = sa_family_t(AF_INET)

        let defaultRouteReachability = withUnsafePointer(&zeroAddress) {

            SCNetworkReachabilityCreateWithAddress(nil, UnsafePointer($0))

        }

        var flags = SCNetworkReachabilityFlags()

        if !SCNetworkReachabilityGetFlags(defaultRouteReachability!, &flags) {

            return false

        }

        let isReachable = (flags.rawValue & UInt32(kSCNetworkFlagsReachable)) != 0

        let needsConnection = (flags.rawValue & UInt32(kSCNetworkFlagsConnectionRequired)) != 0

        return (isReachable && !needsConnection)

    }

}

- Write Below Code Where You want to Check Internet Connectivity in ViewController :-

 if Reachability.isConnectedToNetwork() == true {

            print("Internet connection OK")

        } else {

            print("Internet connection FAILED")

        }