CODEWITHSUNDEEP
iosswiftalamofirereachability
Evgeniy Kleban
Evgeniy Kleban

Reputation: 6940

Attempt to check internet connection on iOS device with Alamofire

I use following code to check internet connection:

class Reachability {

    let networkReachabilityManager = Alamofire.NetworkReachabilityManager(host: "www.google.com")

    func checkForReachability() {
        self.networkReachabilityManager?.listener = { status in
            print("Network Status: \(status)")
            switch status {
            case .notReachable:
                print("no internet connection detected")
            //Show error here (no internet connection)
            case .reachable(_), .unknown:
                print("internet connection availible")
            }
        }
        self.networkReachabilityManager?.startListening()
    }
}

When connection is exist, it successfully call block in .reachable. But in case of connection absence nothing called, why?

I call it like that (keeping reference to class, so it's not released)

class AppDelegate: UIResponder, UIApplicationDelegate {
    var window: UIWindow?
    let reachabilityManager = Reachability()

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        window = UIWindow(frame: UIScreen.main.bounds)
        reachabilityManager.checkForReachability()
        return true
    }

Upvotes: 0

Views: 3856

Answers (2)

Anbu.Karthik
Anbu.Karthik

Reputation: 82759

create the common class for check the connectivity

import Foundation
import Alamofire

class Connectivity {
    class func isConnectedToInternet() -> Bool {
        return NetworkReachabilityManager()!.isReachable
    }
}

and call the function where you need

if !Connectivity.isConnectedToInternet() {
    // show Alert
    return
}

Upvotes: 7

Rashed
Rashed

Reputation: 2425

Create a swift class called Connectivity . You can use NetworkReachabilityManager class from Alamofire and configure the isConnectedToInternet() method as per your need. I am only checking if the device is connected to internet or not. 

import Foundation
import Alamofire
class Connectivity {
    class func isConnectedToInternet() ->Bool {
        return NetworkReachabilityManager()!.isReachable
    }
}

Usage -

if Connectivity.isConnectedToInternet() {
        print("Yes! internet is available.")
        // do some tasks..
 }

Or you can simply do this -

  if let err = error as? URLError, err.code  == URLError.Code.notConnectedToInternet{
    // No internet connection
    }else{
    // your other errors
    }

Upvotes: 2

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