Question

嗨，我已经从developer.Facebook.com下载了最新的Facebook sdk，我在我的代码中实现了sdk。现在，当我第一次登录Facebook登录Facebook时，登录到Facebook后，它会发布到Facebook，之后它不会要求登录，但我想要求再次登录。所以我写了下面的注销功能，但它对我没用。有谁有想法吗？请帮帮我。

NSLog(@"Logged out of facebook");
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];
        }
}

Answer 1

要从Facebook退出，您只需要这样做：

[FBSession.activeSession closeAndClearTokenInformation];

编辑1 ：这将关闭内存中会话。如果登录是通过Safari进行的，那么在Safari中会话仍处于打开状态，我担心你与此无关。

要确认这一点，请尝试打开Safari应用程序（独立）并在使用您的应用程序登录后输入facebook.com。会议仍将开放。

Answer 2

根据FaceBook Developer Documentation，我们应该使用以下代码

 // get the app delegate so that we can access the session property
AppDelegate *appDelegate = [[UIApplication sharedApplication]delegate];

// this button's job is to flip-flop the session from open to closed
if ([FBSession activeSession].isOpen)
{
    // if a user logs out explicitly, we delete any cached token information, and next
    // time they run the applicaiton they will be presented with log in UX again; most
    // users will simply close the app or switch away, without logging out; this will
    // cause the implicit cached-token login to occur on next launch of the application
    [[FBSession activeSession] closeAndClearTokenInformation];
}

如何从Facebook注销

2 个答案: