iOS: Google Authentication Code

Question

I am working with authenticating user to use the google account he is associated with. The problem is that everytime the user logs in through my app, the \"Allow Access\" always

Answer 1

Put the below code to logout / sign out from Google SDK.

- Call below function from where you want:

static NSString *const kKeychainItemName = @"MY_APP";



- (void)logoutFromGoogleDrive {

[GTMOAuth2SignIn revokeTokenForGoogleAuthentication:(GTMOAuth2Authentication *)self.driveService.authorizer];

[GTMOAuth2ViewControllerTouch saveParamsToKeychainForName:kKeychainItemName authentication:nil];

}

[Note: Above code works, if you have used GTMOAuth2SignIn  for sign in user for google access like,

GTMOAuth2Authentication * auth = [GTMOAuth2ViewControllerTouch
authForGoogleFromKeychainForName:YOUR_KEYCHAIN_ITEM_NAME
clientID:GOOGLE_CLIENT_KEY
clientSecret:GOOGLE_CLIENT_SECRET];

]