Reachability - проверка интернет соединения iOS - Swift 5

import UIKit
import SystemConfiguration

protocol Utilities {
}

extension NSObject:Utilities{
   
enum ReachabilityStatus {
case notReachable
case reachableViaWWAN
case reachableViaWiFi
}
    
var currentReachabilityStatus: ReachabilityStatus {
        
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 .notReachable
}
        
var flags: SCNetworkReachabilityFlags = []
if !SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags) {
return .notReachable
}
        
if flags.contains(.reachable) == false {
// The target host is not reachable.
return .notReachable
}
else if flags.contains(.isWWAN) == true {
// WWAN connections are OK if the calling application is using the CFNetwork APIs.
return .reachableViaWWAN
}
else if flags.contains(.connectionRequired) == false {
// If the target host is reachable and no connection is required then we'll assume that you're on Wi-Fi...
return .reachableViaWiFi
}
else if (flags.contains(.connectionOnDemand) == true || flags.contains(.connectionOnTraffic) == true) && flags.contains(.interventionRequired) == false {
// The connection is on-demand (or on-traffic) if the calling application is using the CFSocketStream or higher APIs and no [user] intervention is needed
return .reachableViaWiFi
}
else {
return .notReachable
}
}  
}

Использование

if currentReachabilityStatus == .notReachable {
print("Нет подключения к сети интернет!")
}