arturdent / rxreachability

RxSwift bindings for Reachability

RxReachability

RxReachability adds easy to use RxSwift bindings for ReachabilitySwift. You can react to network reachability changes and even retry observables when network comes back up.

Available APIs

RxReachability adds the following RxSwift bindings:

• reachabilityChanged: Observable<Reachability>
• status: Observable<Reachability.NetworkStatus>
• isReachable: Observable<Bool>
• isConnected: Observable<Void>
• isDisconnected: Observable<Void>

Common Usage

1. Be sure to store an instance of Reachability in your ViewController or similar, and start/stop the notifier on viewWillAppear and viewWillDisappear methods.

class ViewController: UIViewController {

  let disposeBag = DisposeBag()
  var reachability: Reachability?

  override func viewDidLoad() {
    super.viewDidLoad()
    reachability = Reachability()
  }

  override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    try? reachability?.startNotifier()
  }

  override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    reachability?.stopNotifier()
  }
}

2. Subscribe to any of the bindings to know when a change happens.

extension ViewController {

  let disposeBag = DisposeBag()

  func bindReachability() {

    reachability?.rx.reachabilityChanged
      .subscribe(onNext: { reachability: Reachability in
        print("Reachability changed: \(reachability.currrentReachabilityStatus)")
      })
      .addDisposableTo(disposeBag)

    reachability?.rx.status
      .subscribe(onNext: { status: Reachability.NetworkStatus in
        print("Reachability status changed: \(status)")
      })
      .addDisposableTo(disposeBag)

    reachability?.rx.isReachable
      .subscribe(onNext: { isReachable: Bool in
        print("Is reachable: \(isReachable)")
      })
      .addDisposableTo(disposeBag)

    reachability?.rx.isConnected
      .subscribe(onNext: {
        print("Is connected")
      })
      .addDisposableTo(disposeBag)

    reachability?.rx.isDisconnected
      .subscribe(onNext: {
        print("Is disconnected")
      })
      .addDisposableTo(disposeBag)
  }

Static Usage

1. Be sure to store an instance of Reachability somewhere on your AppDelegate or similar, and start the notifier.

import ReachabilitySwift

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

  var reachability: Reachability?

  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    reachability = Reachability()
    try? reachability?.startNotifier()
    return true
  }
}

2. Subscribe to any of the bindings to know when a change happens.

import ReachabilitySwift
import RxReachability
import RxSwift

class ViewController: UIViewController {

  let disposeBag = DisposeBag()

  override func viewDidLoad() {
    super.viewDidLoad()

    Reachability.rx.reachabilityChanged
      .subscribe(onNext: { reachability: Reachability in
        print("Reachability changed: \(reachability.currrentReachabilityStatus)")
      })
      .addDisposableTo(disposeBag)

    Reachability.rx.status
      .subscribe(onNext: { status: Reachability.NetworkStatus in
        print("Reachability status changed: \(status)")
      })
      .addDisposableTo(disposeBag)

    Reachability.rx.isReachable
      .subscribe(onNext: { isReachable: Bool in
        print("Is reachable: \(isReachable)")
      })
      .addDisposableTo(disposeBag)

    Reachability.rx.isConnected
      .subscribe(onNext: {
        print("Is connected")
      })
      .addDisposableTo(disposeBag)

    Reachability.rx.isDisconnected
      .subscribe(onNext: {
        print("Is disconnected")
      })
      .addDisposableTo(disposeBag)
  }

Advanced Usage

With RxReachability you can also add a retry when network comes back up with a given timeout. This does require you to have a stored instance of Reachability though.

func request(somethingId: Int) -> Observable<Something> {
  return network.request(.something(somethingId))
    .retryOnConnect(timeout: 30)
    .map { Something(JSON: $0) }
}

Installation

Installation via CocoaPods

To integrate RxReachability into your Xcode project using CocoaPods, simply add the following line to your Podfile:

pod 'RxReachability'

Example

To run the example project, clone the repo, and run pod install from the Example directory first.

License

RxReachability is available under the MIT license. See the LICENSE file for more info.