How to automatically recognise internet connection using Swift 3

Question

I want to synchronize data with my App-Server whenever data has been saved to the local database (sqlite) on my mobile phone. I need a mechanism that automatically detects an internet connection in order to send the related saved data to my server at any time. That's how I want to realize an offline mode.

Which approaches can you recommend me? Are there any frameworks which do that job? In android I use syncAdapter, does Swift3 provides a similar framework or do I need to create an own solution?

`SCNetworkReachability` can be used to detect status and changes of the network connectivity. https://github.com/ashleymills/Reachability.swift is a well-known Swift wrapper. You'll also find many Q&A about SCNetworkReachability here on SO. — Martin R, Dec 07 '16 at 06:26
Possible duplicate of [Sync adapter on IOS - My app sync contact with my server](http://stackoverflow.com/questions/22981812/sync-adapter-on-ios-my-app-sync-contact-with-my-server) — Fay007, Dec 07 '16 at 06:28
Possible duplicate of [Create equivalent of Androids sync adapter on iOS](http://stackoverflow.com/questions/8406736/create-equivalent-of-androids-sync-adapter-on-ios) — Johannes N, Dec 07 '16 at 17:26
Possible duplicate of [How to check for an active Internet connection on iOS or OSX?](http://stackoverflow.com/questions/1083701/how-to-check-for-an-active-internet-connection-on-ios-or-osx) — Johannes N, Feb 06 '17 at 22:25

score 1 · Accepted Answer · answered Dec 07 '16 at 11:14

Steps to do it-

Use pod 'ReachabilitySwift' in your pod file
In 'AppDelegate' import ReachabilitySwift

Write following code in AppDelegate

 var reachabilityManager:ReachabilityManager = ReachabilityManager.sharedInstance
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    NetworkActivityIndicatorManager.shared.isEnabled = true
    reachabilityManager.initRechabilityMonitor()
    return true
}

func reachabilityStatusChangeHandler(_ reachability: Reachability) {
    if reachability.isReachable {
        print("isReachable")
    } else {
        print("notReachable")
    }
}

How to automatically recognise internet connection using Swift 3

1 Answers1