Thank you guys so much for all your support. The project has been discontinued. Thank you.

Intro

A simple wrapper of google sign in for ios, let's code less in AppDelegate.

Prerequisite

• configure google sign in properly

1. pod install Google/SignIn
2. configure GoogleService-Info.plist, it should be something like below ![Image of info-plist] (https://raw.githubusercontent.com/calvinchankf/GoogleSignInHelper/master/info-plist.png)
3. add url scheme, it shouldd be something like this ![Image of url-scheme] (https://raw.githubusercontent.com/calvinchankf/GoogleSignInHelper/master/url_scheme.png)

How to use

• Import GoogleSignInHelper.h and .m to a project and adopt GoogleSignInHelperDelegate

@interface AppDelegate ()<GoogleSignInHelperDelegate>

• Configure the helper in didFinishLaunchingWithOptions

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  
  //...

  // use youtube as an example for a scope
  [[GoogleSignInHelper currentHelper] configure:@[@"https://www.googleapis.com/auth/youtube"] with:self];
  
  return YES;
}

• Handle open url

- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {
  return [GoogleSignInHelper handleURL:url sourceApplication:sourceApplication annotation:annotation];
}

• Implement delegate methods in AppDelegate

#pragma mark - GoogleSignInHelperDelegate

- (void)googleSignInAuth {
  NSLog(@"googleSignInAuth");
  // e.g. switch to authViewContoller
}

- (void)googleSignInUnAuth {
  NSLog(@"googleSignInUnAuth");
  //  switch to unauthViewContoller
}