google signin not calling delegate method after success

Question

i am using google sdk for google signin but after entering the email and password

in viewDidLoad i have added delegate

//set Google sign In delegates

    [GIDSignIn sharedInstance].delegate = self;
    [GIDSignIn sharedInstance].uiDelegate = self;

-(void)signIn:(GIDSignIn *)signIn didSignInForUser:(GIDGoogleUser *)user withError:(NSError *)error{
}

not called . where is the issue not getting

when i am entering user email and password i am getting this

this method is called and showing error is null.

- (void)signInWillDispatch:(GIDSignIn *)signIn error:(NSError *)error {

}

Answer 1

Add following code in your AppDelegate.m file

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



    return [[GIDSignIn sharedInstance] handleURL:url
                               sourceApplication:sourceApplication
                                      annotation:annotation];
    }

Answer 2

The method that get's called is called on GIDSignInUiDelegate, while the method that is not called is called on the GIDSignInDelegate after login. Here's what the GIDSignIn header file says:

@protocol GIDSignInDelegate <NSObject>        
- (void)signIn:(GIDSignIn *)signIn didSignInForUser:(GIDGoogleUser *)user withError:(NSError *)error;

@protocol GIDSignInUIDelegate <NSObject>
@optional
- (void)signInWillDispatch:(GIDSignIn *)signIn error:(NSError *)error;

Since you have set both the uiDelegate and the delegate to your UIViewController instance, both methods should get called.

When I encountered the same problem, my mistake was, that I also set the AppDelegate to be the GIDSignInDelegate causing confusion for hours! So my advice: double check if your ViewController still is the delegate of GIDSignIn.sharedInstance when returning from sign in. E.g. set a breakpoint in the callback that get's called:

- (void)signInWillDispatch:(GIDSignIn *)signIn error:(NSError *)error {
    if (GIDSignIn.delegate != self) {NSLog("gotcha!")}
}