Question

I followed graph API and all has gone well till now. The problem occurs when I try to logout from facebook. The logout never occurs:
I have used this method:

    [facebook logout];

I have implemented the delegate method:

    - (void) fbDidLogout {

NSLog(@"did logout");

// Remove saved authorization information if it exists
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if ([defaults objectForKey:@"FBAccessTokenKey"]) {
    [defaults removeObjectForKey:@"FBAccessTokenKey"];
    [defaults removeObjectForKey:@"FBExpirationDateKey"];
    [defaults synchronize];
}

}

Problem is that user is logined again when he run the application again. I want that each time I enter facebook screen, new user should login. However this method doesnt work.
Please help

Answer 1

- (void)logOutFB {

fbGraph.accessToken = nil;
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];
    }
}
}