Detect device connection (WIFI / 3G / 4G ) and retrieve carrier name if needed

DetectConnectionDevice.swift

import SystemConfiguration
import CoreTelephony
 
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(sizeofValue(zeroAddress))
        zeroAddress.sin_family = sa_family_t(AF_INET)
        
        let defaultRouteReachability = withUnsafePointer(&zeroAddress) {
            SCNetworkReachabilityCreateWithAddress(nil, UnsafePointer($0)).takeRetainedValue()
        }
        
        var flags: SCNetworkReachabilityFlags = 0
        if SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags) == 0 {
            return false;
        }
        
        let isReachable = (flags & UInt32(kSCNetworkFlagsReachable)) != 0
        let isWWAN = (flags & UInt32(kSCNetworkReachabilityFlagsIsWWAN)) != 0
        
        if(isReachable || isWWAN){
            // Have connection
            if (isWWAN){
                // Setup the Network Info and create a CTCarrier object
                var networkInfo = CTTelephonyNetworkInfo()
                var carrier = networkInfo.subscriberCellularProvider
                
                // Get carrier name
                var carrierName = carrier.carrierName
            }
            
            return true
        }
        return false;
    }