Close Facebook session in Facebook-Ios-Sdk - iphone

Question

How do I close aCtive Session Of the Facebook-iOS-Sdk each time when i start my app either after killing app it gives me the previous login session details. When I click on the facebook Button .I have used everything [appDelegate.session closeAndClearTokenInformation];
[FBSession.activeSession close]; [FBSession.activeSession closeAndClearTokenInformation] ..but active session still not been close..how do i close the Previous session data on clicking.
I use the below code to clear but whenever I click on the facebook button to start new session..it gives me back the previous credentials.
- (IBAction)buttonClickHandler:(id)sender {
appDelegate = [[UIApplication sharedApplication]delegate];
// this button's job is to flip-flop the session from open to closed
if (appDelegate.session.isOpen) {
[appDelegate.session closeAndClearTokenInformation];
[FBSession.activeSession close];
[FBSession.activeSession closeAndClearTokenInformation];
FBSession.activeSession=nil;
} else {
if (appDelegate.session.state != FBSessionStateCreated) {
// Create a new, logged out session.
appDelegate.session = [[FBSession alloc] init];
}
// if the session isn't open, let's open it now and present the login UX to the user
[FBSession.activeSession closeAndClearTokenInformation];
FBSession.activeSession=nil;
[FBSession.activeSession openWithBehavior:FBSessionLoginBehaviorForcingWebView
completionHandler:^(FBSession *session,
FBSessionState state,
NSError *error) {
// and here we make sure to update our UX according to the new session state
NSLog(#" state=%d",state);
[FBRequestConnection
startForMeWithCompletionHandler:^(FBRequestConnection *connection,
id<FBGraphUser> user,
NSError *error) {
userInfo = #"";
// Example: typed access (name)
// - no special permissions required
userInfo = user.username;
NSLog(#"string %#", userInfo);
[self checkfacebook];
}];
}]; }
}
and in ViewDidLoad
- (void)viewDidLoad
{
[super viewDidLoad];
AppDelegate *appDelegate = [[UIApplication sharedApplication]delegate];
if (!appDelegate.session.isOpen) {
// create a fresh session object
appDelegate.session = [[FBSession alloc] init];
if (appDelegate.session.state == FBSessionStateCreatedTokenLoaded) {
// even though we had a cached token, we need to login to make the session usable
[FBSession.activeSession close];
FBSession.activeSession=nil;
}
}
NSHTTPCookieStorage* cookies = [NSHTTPCookieStorage sharedHTTPCookieStorage];
NSArray* facebookCookies = [cookies cookiesForURL:[NSURL URLWithString:#"http://login.facebook.com"]];
for (NSHTTPCookie* cookie in facebookCookies) {
[cookies deleteCookie:cookie];
}
}

Answer 1

hi Christien may be bellow two link its help's you please refur this two link of developers.facebook
http://developers.facebook.com/docs/reference/ios/3.0/class/FBSession/
http://developers.facebook.com/docs/reference/ios/3.0/class/FBSession/#close
[FBSession.activeSession closeAndClearTokenInformation];
[FBSession.activeSession close];
[FBSession setActiveSession:nil];
you can also check this two question related your issue :-
Facebook graph api log out not working
Facebook iOS SDK 3.1.1 "closeAndClearTokenInformation" method no working
hope its helps you

Answer 2

After calling
[FBSession.activeSession closeAndClearTokenInformation];
use following to clear cookies. It worked for me!
NSHTTPCookieStorage* cookies = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (NSHTTPCookie* cookie in
[[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies]) {
[cookies deleteCookie:cookie];
}

Answer 3

Nitin's Gohel answer, Swift version:
FBSession.activeSession().closeAndClearTokenInformation()
FBSession.activeSession().close()
FBSession.setActiveSession(FBSession())
you can use
FBSession.setActiveSession(nil)
But the function ask for an unwrapped object, so "nil" seems not a good parameter to be pass