Question

我正在尝试在我正在开发的iPhone应用程序中编写Facebook集成。我有它登录就好了，但我不喜欢能够打开一个功能而不能关闭它的想法。因此，在处理注销功能时，我遇到了麻烦。

- (IBAction) logoutClicked:(id)sender {
    if (fbLoggedIn)
    {
        FBSession * mySession = [FBSession session];

        [mySession logout];
    }
}

- (void)sessionDidLogout:(FBSession*)session
{
    NSLog(@"Session logged out.");
    [theLoginButton setTitle:@"Facebook Time!" forState:UIControlStateNormal];
    fbLoggedIn = FALSE;
    theLogoutButton.enabled = NO;
    theLogoutButton.alpha = 0;
}

logoutClicked方法响应我的xib中的按钮。委托方法没有被调用。我已经尝试将Facebook会话设置为我的ViewController中的属性，以便跨方法存储/访问数据，但这似乎也不起作用。有人有任何解决方案吗？

Answer 1

sessionDidLogout是在实现FBSessionDelegate的类中实现的吗？并且它是在使用方法创建会话时作为委托传递的类的实例[FBSession sessionForApplication：@“XXX”secret：@“YYY”delegate：（DELEGATE）]？

Answer 2

将此代码用于注销。我从link得到了这个。

- (void) fbDidLogout {
    NSLog(@"Log out");
    // Remove saved authorization information if it exists
    if ([userDefaults objectForKey:@"FBAccessTokenKey"]) {
        [userDefaults removeObjectForKey:@"FBAccessTokenKey"];
        [userDefaults removeObjectForKey:@"FBExpirationDateKey"];
        [userDefaults synchronize];
    }
    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 3

这对我有用：

(void)logout {

//self.sessionDelegate = delegate;

appDelegate.facebook.accessToken = nil;
appDelegate.facebook.expirationDate  = nil;

NSHTTPCookieStorage* cookies = [NSHTTPCookieStorage sharedHTTPCookieStorage];
NSArray* facebookCookies = [cookies cookiesForURL:[NSURL URLWithString:@"http://login.facebook.com"]];

for (NSHTTPCookie* cookie in facebookCookies) {
    [cookies deleteCookie:cookie];
}


NSLog(@"Log out");
// Remove saved authorization information if it exists
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
if ([userDefaults objectForKey:@"FBAccessTokenKey"]) {
    [userDefaults removeObjectForKey:@"FBAccessTokenKey"];
    [userDefaults removeObjectForKey:@"FBExpirationDateKey"];
    [userDefaults synchronize];
}
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];
    }
}

}

Facebook Connect iPhone API注销无法正常工作

3 个答案: