iphone - 在 Facebook-Ios-Sdk 中关闭 Facebook session

Question

每次启动我的应用程序时，我如何关闭 Facebook-iOS-Sdk 的事件 session ，或者在终止应用程序后它会给我之前的登录 session 详细信息。当我点击 facebook 按钮时。我已经使用了所有东西 [appDelegate.session closeAndClearTokenInformation]; [FBSession.activeSession close]; [FBSession.activeSession closeAndClearTokenInformation] ..但事件 session 仍未关闭..如何在单击时关闭上一个 session 数据。

我使用下面的代码来清除，但每当我点击 facebook 按钮开始新 session 时..它会返回我之前的凭据。

- (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];

                                 }];


                            }];    } 


 }

并在 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

嗨，Christien 可能会在下方提供两个链接，这对您有帮助，请刷新 developers.facebook

的这两个链接

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];

您还可以查看与您的问题相关的这两个问题:-

Facebook graph api log out not working

Facebook iOS SDK 3.1.1 "closeAndClearTokenInformation" method no working

希望对你有帮助