I have made a basic app using Twitter\'s fabric that allows user to tweet within my app and Provide Login With Twitter.Every things works a I Wanted.
First make sure some user is signed in, then perform logout.
NSString *signedInUserID = [TWTRAPIClient clientWithCurrentUser].userID; if (signedInUserID) { [[Twitter sharedInstance].sessionStore logoutUserID:signedInUserID]; }