Unable to logout from Facebook using Facebook SDK 3.5 in iOS

Question

I am currently using Facebook SDK 3.5 for facebook login in my native iOS app. I have referred sample iOS codes by facebook and implemented my login in the same way. Everything works absolutely fine until the Logout process. I am able to logout from FB but NOT completely. When i tap on the login button again, FB is showing a webpage with my credentials again and asking me to login with the same. I'v heard people say that it is a problem with Safari, so i manually deleted all the safari cookies and tried to login again, but to no avail. Is there any alternative way in which i can do this?? I also referred SOF for solutions and implemented the answers listed below, but they are not working out either.

Login Logout issue with facebook iOS sdk

Logout facebook sdk 3.08

EDIT -Posting the settings tab screenshot of the Facebook app page

Answer 1

Although I haven't used Facebook SDK but I have used third Party SDK Socialize and was facing the same issue with Facebook logout. I was unable to logout and even if I did, it was showing my credentials when I tried to log back in.

I followed following steps which is irrespective of the SDK you are using (Be it sharekit, socialize or native facebook sdk)

Ref Question on SO

1.In the advance settings of the app on facebook, i enabled native/desktop app

2.Disable SSO/DeepLinking in basic settings --> native iOS app. Earlier there used to be different options but now only DeepLinking is provided.

3.Add de-auth callback url in advance settings. It could be anything [For eg http://google.com]

4.Add the following piece of code where the user clicks LogOut button:

NSHTTPCookie *cookie;
    NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
    for (cookie in [storage cookies])
    {
     NSString* domainName = [cookie domain];
     NSRange domainRange = [domainName rangeOfString:@"facebook"];
     if(domainRange.length > 0)
      {
        [storage deleteCookie:cookie];
      }
    }

Hope this helps