How to use NetworkReachabilityManager in Alamofire
Solution 1
I found the answer myself i.e by just writing a listener with closure as mentioned below:
let net = NetworkReachabilityManager()
net?.listener = { status in
if net?.isReachable ?? false {
switch status {
case .reachable(.ethernetOrWiFi):
print("The network is reachable over the WiFi connection")
case .reachable(.wwan):
print("The network is reachable over the WWAN connection")
case .notReachable:
print("The network is not reachable")
case .unknown :
print("It is unknown whether the network is reachable")
}
}
net?.startListening()
Solution 2
NetworkManager Class
class NetworkManager {
//shared instance
static let shared = NetworkManager()
let reachabilityManager = Alamofire.NetworkReachabilityManager(host: "www.google.com")
func startNetworkReachabilityObserver() {
reachabilityManager?.listener = { status in
switch status {
case .notReachable:
print("The network is not reachable")
case .unknown :
print("It is unknown whether the network is reachable")
case .reachable(.ethernetOrWiFi):
print("The network is reachable over the WiFi connection")
case .reachable(.wwan):
print("The network is reachable over the WWAN connection")
}
}
// start listening
reachabilityManager?.startListening()
}
}
Start Network Reachability Observer
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// add network reachability observer on app start
NetworkManager.shared.startNetworkReachabilityObserver()
return true
}
}
Solution 3
Here's my implementation. I use it in a singleton. Remember to hold on to the reachability manager reference.
let reachabilityManager = Alamofire.NetworkReachabilityManager(host: "www.apple.com")
func listenForReachability() {
self.reachabilityManager?.listener = { status in
print("Network Status Changed: \(status)")
switch status {
case .NotReachable:
//Show error state
case .Reachable(_), .Unknown:
//Hide error state
}
}
self.reachabilityManager?.startListening()
}
Solution 4
SWIFT 5
NetworkState Structure
import Foundation
import Alamofire
struct NetworkState {
var isInternetAvailable:Bool
{
return NetworkReachabilityManager()!.isReachable
}
}
Use: -
if (NetworkState().isInternetAvailable) {
// Your code here
}
Solution 5
Using a singleton is working as I long as you keep a reference of reachabilityManager
class NetworkStatus {
static let sharedInstance = NetworkStatus()
private init() {}
let reachabilityManager = Alamofire.NetworkReachabilityManager(host: "www.apple.com")
func startNetworkReachabilityObserver() {
reachabilityManager?.listener = { status in
switch status {
case .notReachable:
print("The network is not reachable")
case .unknown :
print("It is unknown whether the network is reachable")
case .reachable(.ethernetOrWiFi):
print("The network is reachable over the WiFi connection")
case .reachable(.wwan):
print("The network is reachable over the WWAN connection")
}
}
reachabilityManager?.startListening()
}
So you can use it like this anywhere in your app:
let networkStatus = NetworkStatus.sharedInstance
override func awakeFromNib() {
super.awakeFromNib()
networkStatus.startNetworkReachabilityObserver()
}
You will be notified of any change in your network status. Just for icing on the cake this is a very good animation to show on your internet connection loss.
![MuraliMohan](https://i.stack.imgur.com/UqyQs.jpg?s=256&g=1)
MuraliMohan
Updated on April 12, 2021Comments
-
MuraliMohan about 3 years
I want functionality similar to
AFNetworking
in Objective-C with Alamofire NetworkReachabilityManager in Swift://Reachability detection [[AFNetworkReachabilityManager sharedManager] startMonitoring]; [[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) { switch (status) { case AFNetworkReachabilityStatusReachableViaWWAN: { [self LoadNoInternetView:NO]; break; } case AFNetworkReachabilityStatusReachableViaWiFi: { [self LoadNoInternetView:NO]; break; } case AFNetworkReachabilityStatusNotReachable: { break; } default: { break; } } }];
I am currently using the listener to know the status changes with network
let net = NetworkReachabilityManager() net?.startListening()
Can someone describe how to support those use cases?