iphone：Facebook注销功能在我的应用程序中不起作用[重复]答案

【问题标题】：iphone: Facebook logout feature is not work in my app [duplicate]iphone：Facebook注销功能在我的应用程序中不起作用[重复]
【发布时间】：2012-06-23 07:32:20
【问题描述】：

可能重复：
iphone: facebook logout feature does not working

我正在通过 FBConnect 实现 FB 集成当我按下注销按钮时，它不是从 Fb 注销它只显示以前的登录.. 我的代码如下：

- (void)viewWillAppear:(BOOL)animated
{

    [super viewWillAppear:animated];
    AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];

    if (![[delegate facebook] isSessionValid]) {

    } else {
        [self showLoggedIn];
    }

}


- (IBAction)postMessageToWall:(id)sender {


        currentAPICall = kDialogFeedUser;
        SBJSON *jsonWriter = [[SBJSON new] autorelease];


        NSArray* actionLinks = [NSArray arrayWithObjects:[NSDictionary dictionaryWithObjectsAndKeys:
                                                          @"TaxSmart Hello.",@"name",@"http://www.google.com",@"link", nil], nil];
        NSString *actionLinksStr = [jsonWriter stringWithObject:actionLinks];


        UIImage *img=[UIImage imageNamed:@"tick.png"];

        NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                       @"Piyush here.", @"name",
                                       @"This is Great App.", @"caption",
                                       @"FuNNNN.", @"description",
                                       @"http://www.iTaxsmart.com/", @"link",
                                       img.CIImage, @"picture",
                                       actionLinksStr, @"actions",
                                       nil];

        AppDelegate *delegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
        [[delegate facebook] dialog:@"feed"
                          andParams:params
                        andDelegate:self];
}

【问题讨论】：

标签： iphone xcode facebook ios5

【解决方案1】：

当你点击注销按钮调用波纹管方法它的工作，但只需检查你的用户默认键..

- (void)fbDidLogout 
{    
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    [facebook invalidateSession];
    [defaults removeObjectForKey:@"FBAccessTokenKey"];
    [defaults removeObjectForKey:@"FBExpirationDateKey"];
    [defaults synchronize];
}

希望对你有帮助.....

【讨论】：