Firebase Deeplink not calling application:continueUserActivity:restorationHandler function of AppDelegate in Swift 3

Question

I am using firebase Deeplink URL to open my app's specific section. It is working well when app running in background but when I killed the app and click deeplink url from outside than I don't know how to handle that case, I mean where I should write my condition to get the parameters of url.

This method of app delegate called when app in background

   @available(iOS 8.0, *)
func application(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([Any]?) -> Void) -> Bool {
    guard let dynamicLinks = DynamicLinks.dynamicLinks() else {
        return false
    }
    let handled = dynamicLinks.handleUniversalLink(userActivity.webpageURL!) { (dynamiclink, error) in
        if let dynamicLink = dynamiclink, let _ = dynamicLink.url
        {
            var path = dynamiclink?.url?.path
            path?.remove(at: (path?.startIndex)!)
            let delimiter = "/"
            var fullNameArr = path?.components(separatedBy: delimiter)
            let type: String = fullNameArr![0]
            let Id: String? = (fullNameArr?.count)! > 1 ? fullNameArr?[1] : nil
            if(type == "games")
            {
                self.callGameDetailView(gameId: Id! , gameType: "created", notificationId: "NIL" )

            }else{
                var paths = dynamicLink.url?.path
                paths?.remove(at: (path?.startIndex)!)
                self.setRewardViewController(paths!)

            }
        } else {
            // Check for errors
        }
    }
    return handled
}

but it will not call open url method when I killed the app and hit the dynamic link url:

@available(iOS 9.0, *)
func application(_ application: UIApplication, open url: URL, options: [UIApplicationOpenURLOptionsKey : Any])
    -> Bool {

   return self.application(application, open: url, sourceApplication: nil, annotation: [:])


}


func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {

    let dynamicLink = DynamicLinks.dynamicLinks()?.dynamicLink(fromCustomSchemeURL: url)
    if let dynamicLink = dynamicLink
    {
        var path = dynamicLink.url?.path
        path?.remove(at: (path?.startIndex)!)
        let delimiter = "/"
        var fullNameArr = path?.components(separatedBy: delimiter)
        let type: String = fullNameArr![0]
        let Id: String? = (fullNameArr?.count)! > 1 ? fullNameArr?[1] : nil
        if(type == "games")
        {
            self.callGameDetailView(gameId: Id! , gameType: "created", notificationId: "NIL" )

        }else{
            var paths = dynamicLink.url?.path
            paths?.remove(at: (path?.startIndex)!)
            self.setRewardViewController(paths!)
            return true
        }
    }

    return FBSDKApplicationDelegate.sharedInstance().application(
        application,
        open: url,
        sourceApplication: sourceApplication,
        annotation: annotation)
}

In short I have no Idea how to handle the dynamic link when app runs first time or run after killing the app?

Answer 1

I also have same issue, you need to get NSUserActivity from launchOptions

var launchURL :URL? = nil

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
            ....
            // this code should have worked but not working for me with Xcode 9
            //        if let userActivityDictionary = launchOptions?[.userActivityDictionary] as? [UIApplicationLaunchOptionsKey : Any],
            //            let auserActivity = userActivityDictionary[.userActivityType] as? NSUserActivity {
            //            launchURL = auserActivity.webpageURL
            //        }

             if let userActDic = launchOptions?[UIApplicationLaunchOptionsKey.userActivityDictionary] as? [String: Any],
                        let  auserActivity  = userActDic["UIApplicationLaunchOptionsUserActivityKey"] as? NSUserActivity{

                        NSLog("type \(userActDic.self),\(userActDic)") // using NSLog for logging as print did not log to my 'Device and Simulator' logs
                        launchURL = auserActivity.webpageURL
                    }
            ...
            }

func applicationDidBecomeActive(_ application: UIApplication) {
            if let url = self.launchURL {
                self.launchURL = nil

                DispatchQueue.main.asyncAfter(deadline: .now()+2.0, execute: {
                    // wait to initalize notifications

                    if let dynamicLinks = DynamicLinks.dynamicLinks()  {
                        NSLog("handling \(dynamicLinks)")
                        dynamicLinks.handleUniversalLink(url) { (dynamiclink, error) in
                            if let link = dynamiclink?.url {
                                NSLog("proceessing \(dynamicLinks)")
                                let strongMatch = dynamiclink?.matchConfidence == .strong
    // process dynamic link here
                                self.processDynamicLink(withUrl: link, andStrongMatch: strongMatch)
                            }
                        }

                    }

                })
            }

        }

Answer 2

I also facing this same issue all day. Firebase SDK does not handle this edge case and didn't mention anywhere in their documentation. Very frustrating!

Found a solution after the investigation for iOS 13 and later OS. Firebase Dynamic link is working and also able to redirect to a specific page even when the app runs the first time or run after killing the app.

Have the below code in the SceneDelegate instead of AppDelegate

func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {

if let firstUrlContext = connectionOptions.userActivities.first,let url = firstUrlContext.webpageURL  {
    DynamicLinks.dynamicLinks().handleUniversalLink(url) { (dynamiclink, error) in
        if let dynamiclink = dynamiclink {
            self.handleDynamicLink(dynamiclink)
        }
      }
    }
  }