Not Able To Implement Google Sign In for iOS App - ios

Question

I am following all steps as per this link Click here
After doing all steps it gives me
Can anyone tell me this strange is happening ?
Answer would be appreciated.
Thanks.

Answer 1

Try those:
Add GIDSignIn library header properly, if in case you missing something.
Add AppDelgate.h file into your ViewController (If you not writing this code in AppDelegate.m)
Read point 4 which I copied from GitHub forum, which can be the main reason of your errors.
It looks like iOS 9 changed the constant UIApplicationLaunchOptionsSourceApplicationKey to UIApplicationOpenURLOptionsSourceApplicationKey. Dynamically support both, especially in Xcode 6.4 which doesn't recognize UIApplicationOpenURLOptionsSourceApplicationKey.
After try these all if its still not working then comment here for further help.

Answer 2

This is the AppDelegate.m file from which I implemented Google Signin SDK (the new one)
#define kGoogleClientID #""
#import "AppDelegate.h"
#import <GoogleSignIn/GoogleSignIn.h>
#interface AppDelegate ()<GIDSignInDelegate>
#end
#implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
[GIDSignIn sharedInstance].clientID = kGoogleClientID;
return YES;
}
- (void)applicationWillResignActive:(UIApplication *)application {
}
- (void)applicationDidEnterBackground:(UIApplication *)application {
}
- (void)applicationWillEnterForeground:(UIApplication *)application {
}
- (void)applicationDidBecomeActive:(UIApplication *)application {
}
- (void)applicationWillTerminate:(UIApplication *)application {
}
- (BOOL)application:(UIApplication *)application
openURL:(NSURL *)url
sourceApplication:(NSString *)sourceApplication
annotation:(id)annotation {
if(annotation){
NSDictionary *options = #{UIApplicationOpenURLOptionsSourceApplicationKey: sourceApplication,
UIApplicationOpenURLOptionsAnnotationKey: annotation};
return [self application:application
openURL:url
options:options];
}
}
/* Google */
- (void)signIn:(GIDSignIn *)signIn
didSignInForUser:(GIDGoogleUser *)user
withError:(NSError *)error {
// Perform any operations on signed in user here.
// ...
}
- (void)signIn:(GIDSignIn *)signIn
didDisconnectWithUser:(GIDGoogleUser *)user
withError:(NSError *)error {
// Perform any operations when the user disconnects from app here.
// ...
}
#end
Hope this helps you out