Handling openURL: with Facebook and Google

The method "application:openURL:sourceApplication:annotation:" is deprecated from iOS9. so now you can use like.

- (BOOL)application:(UIApplication *)app
        openURL:(NSURL *)url
        options:(NSDictionary *)options {
       // For Google sign in SDK
       if ([[GIDSignIn sharedInstance] handleURL:url
                               sourceApplication:options[UIApplicationOpenURLOptionsSourceApplicationKey]
                                      annotation:options[UIApplicationOpenURLOptionsAnnotationKey]]) {
          return YES;
       // For Facebook SDK
       }else if ( [[FBSDKApplicationDelegate sharedInstance] application:app
                                                          openURL:url
                                                sourceApplication:options[UIApplicationOpenURLOptionsSourceApplicationKey]
                                                       annotation:options[UIApplicationOpenURLOptionsAnnotationKey]]){
          return YES;
      //For Google plus SDK
      }else if ([GPPURLHandler handleURL:url
                       sourceApplication:options[UIApplicationOpenURLOptionsSourceApplicationKey]
                              annotation:options[UIApplicationOpenURLOptionsAnnotationKey]]){
          return YES;
      }

     return NO;
}

You can Try the following :

if ([[url absoluteString] rangeOfString:@"<Your Google Bundle ID>"].location ==            NSNotFound)
{
    // Call FBAppCall's handleOpenURL:sourceApplication to handle Facebook app responses
    BOOL wasHandled = [FBAppCall handleOpenURL:url sourceApplication:sourceApplication];
    // You can add your app-specific url handling code here if needed
    return wasHandled;
}
else
{
    return [GPPURLHandler handleURL:url
                  sourceApplication:sourceApplication
                         annotation:annotation];
}
return YES;

Call the above method in

(BOOL)application:(UIApplication *)application
          openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication
       annotation:(id)annotation 

in your appDelegeate.m

Basically what this is going to do is examine the url prefix and then call the google+ method if url prefix is ur google+ bundle id , and if not , it'll call the fb method . Hope this helps

For Swift users, (The idea from user2144179)

Import below frameworks

import Firebase
import GoogleSignIn
import FacebookCore // (FBSDKCore's alternative for swift)

and in your delegate methods

// when your target is under iOS 9.0
func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {
    let isFBOpenUrl = SDKApplicationDelegate.shared.application(application, open: url, sourceApplication: sourceApplication, annotation: annotation)
    let isGoogleOpenUrl = GIDSignIn.sharedInstance().handle(url, sourceApplication: sourceApplication, annotation: annotation)
    if isFBOpenUrl { return true }
    if isGoogleOpenUrl { return true }
    return false
}

or you can use another 'open url:' method if your target is 9.0+. SDKs include a method for it also.

Firebase Reference : https://firebase.google.com/docs/auth/ios/google-signin

Facebook Reference : https://developers.facebook.com/docs/swift/reference/classes/applicationdelegate.html

We don't need to Explicitly check the URL, the code below does it:

- (BOOL)application: (UIApplication *)application openURL: (NSURL *)url sourceApplication: (NSString *)sourceApplication annotation: (id)annotation
{

    if ([GPPURLHandler handleURL:url sourceApplication:sourceApplication annotation:annotation]) {
        return YES;
    }else if([FBAppCall handleOpenURL:url sourceApplication:sourceApplication]){
        return YES;
    }

    return NO;
}