FacebookSDK not able to login, giving blank white screen after authorization.

Question

Added URL Type , LSApplicationQueriesSchemes and other settings.

Tried every possible solution, Not able to debug. Please help with this

Answer 1

I solved this by implementing BOTH of these functions, even though facebook's developer website only lists one:

func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool {
    return FBSDKApplicationDelegate.sharedInstance().application(application, openURL: url, sourceApplication: sourceApplication, annotation: annotation)
}

func application(app: UIApplication, openURL url: NSURL, options: [String : AnyObject]) -> Bool {
        let shouldOpen :Bool = FBSDKApplicationDelegate.sharedInstance().application(
            app,
            openURL: url,
            sourceApplication: options["UIApplicationOpenURLOptionsSourceApplicationKey"] as! String,
            annotation: nil)


        return shouldOpen

}

Answer 2

For anyone fighting this for swift3 + ios10, make sure your appdelegate looks like:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
}

func applicationWillResignActive(_ application: UIApplication) {
    FBSDKAppEvents.activateApp()
}

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

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