Reachability

Reachability.swift

Reachability.swift is a replacement for Apple's Reachability sample, re-written in Swift with closures.

It is compatible with iOS (8.0 - 11.0), OSX (10.9 - 10.13) and tvOS (9.0 - 11.0)

Inspired by https://github.com/tonymillion/Reachability

Supporting Reachability.swift

Keeping Reachability.swift up-to-date is a time consuming task. Making updates, reviewing pull requests, responding to issues and answering emails all take time. If you'd like to help keep me motivated, please download my free app, [Photo Flipper] from the App Store. (To really motivate me, pay $1.99 for the IAP 😀)

And don't forget to ★ the repo. This increases its visibility and encourages others to contribute.

Thanks Ash

IMPORTANT

Version 4.0 breaking changes

CocoaPods:

If you're adding Reachability.swift using CocoaPods, note that the framework name has changed from ReachabilitySwift to Reachability (for consistency with Carthage)

Previously:

enum NetworkStatus {
    case notReachable, reachableViaWiFi, reachableViaWWAN
}
var currentReachabilityStatus: NetworkStatus

Now:

enum Connection {
    case none, wifi, cellular
}
var connection: Connection

Other changes:

• isReachableViaWWAN has been renamed to isReachableViaCellular

• reachableOnWWAN has been renamed to allowsCellularConnection

• reachability.currentReachabilityString has been deprecated. Use "\(reachability.connection)" instead.

• isReachable has been deprecated. Use connection != .none instead.

• isReachableViaWWAN has been deprecated. Use connection == .cellular instead.

• The notification for reachability changes has been renamed from ReachabilityChangedNotification to Notification.Name.reachabilityChanged

• All closure callbacks and notification are fired on the main queue (including when startNotifier() is called)

Got a problem?

Please read https://github.com/ashleymills/Reachability.swift/wiki/Raising-an-issue before raising an issue.

Installation

Manual

Just drop the Reachability.swift file into your project. That's it!

CocoaPods

CocoaPods is a dependency manager for Cocoa projects. To install Reachability.swift with CocoaPods:

1. Make sure CocoaPods is installed.

2. Update your Podfile to include the following:

   use_frameworks!
   pod 'ReachabilitySwift'
   

3. Run pod install.

4. In your code import Reachability like so: import ReachabilitySwift

Carthage

Carthage is a decentralized dependency manager that builds your dependencies and provides you with binary frameworks. To install Reachability.swift with Carthage:

1. Install Carthage via Homebrew

   $ brew update
   $ brew install carthage
   

2. Add github "ashleymills/Reachability.swift" to your Cartfile.

3. Run carthage update.

4. Drag ReachabilitySwift.framework from the Carthage/Build/iOS/ directory to the Linked Frameworks and Libraries section of your Xcode project’s General settings.

5. Add $(SRCROOT)/Carthage/Build/iOS/ReachabilitySwiift.framework to Input Files of Run Script Phase for Carthage.

6. In your code import Reachability likse so: import ReachabilitySwift

Example - closures

NOTE: All closures are run on the main queue.

//declare this property where it won't go out of scope relative to your listener
let reachability = Reachability()!

reachability.whenReachable = { reachability in
    if reachability.connection == .wifi {
        print("Reachable via WiFi")
    } else {
        print("Reachable via Cellular")
    }
}
reachability.whenUnreachable = { _ in
    print("Not reachable")
}

do {
    try reachability.startNotifier()
} catch {
    print("Unable to start notifier")
}

and for stopping notifications

reachability.stopNotifier()

Example - notifications

NOTE: All notifications are delviered on the main queue.

//declare this property where it won't go out of scope relative to your listener
let reachability = Reachability()!

//declare this inside of viewWillAppear

     NotificationCenter.default.addObserver(self, selector: #selector(reachabilityChanged(_:)), name: .reachabilityChanged, object: reachability)
    do{
      try reachability.startNotifier()
    }catch{
      print("could not start reachability notifier")
    }

and

func reachabilityChanged(note: Notification) {

  let reachability = note.object as! Reachability

  switch reachability.connection {
  case .wifi:
      print("Reachable via WiFi")
  case .cellular:
      print("Reachable via Cellular")
  case .none:
    print("Network not reachable")
  }
}

and for stopping notifications

reachability.stopNotifier()
NotificationCenter.default.removeObserver(self, name: .eachabilityChanged, object: reachability)

Want to help?

Got a bug fix, or a new feature? Create a pull request and go for it!

Let me know!

If you use Reachability.swift, please let me know about your app and I'll put a link here… and tell your friends!

Cheers, Ash