Question

我开发了一个带有Facebook集成的应用程序，我正在测试多个失败的登录方案。然后我看到一个困扰我的人。

场景是：

用户已使用其帐户配置iOS 6 SSO。
然后用户打开应用程序，不要授权。
然后用户从iOS移除他的Facebook帐户。

结果：

应用程序因为获取未经授权的信息而陷入困境，因为Facebook帐户不再集成到iOS，我无法再对其进行更改。

我的问题是：

我需要知道用户是否在iOS上设置了他的Facebook凭据（设置＆gt; Facebook）。我怎么知道呢？我搜索过Facebook文档但无法找到。

这是我的代码：

+ (void)initFacebook:(void (^)(int))initResult
{
    NSLog(@"init: activeSession.state = %i", FBSession.activeSession.state);

    [FBSession renewSystemCredentials:^(ACAccountCredentialRenewResult result, NSError *error) {
        if (result == ACAccountCredentialRenewResultFailed) {
            //User has changed his password and must update his iOS login credentials
            NSLog(@"sync: ACAccountCredentialRenewResultFailed -- error.code = %i", error.code);

            //Display some message to user…           

            //Get rid of the token with wrong credentials
            [FBSession.activeSession closeAndClearTokenInformation];
            FBSession.activeSession = [[FBSession alloc] init];

            initResult(1);
        }
        else if (result == ACAccountCredentialRenewResultRejected) {
            //User has unauthorized my App in Settings > Facebook
            NSLog(@"sync: ACAccountCredentialRenewResultRejected -- error.code = %i", error.code);

            //Display some message to user…

            //Get rid of the token with wrong credentials            
            [FBSession.activeSession closeAndClearTokenInformation];
            FBSession.activeSession = [[FBSession alloc] init];

            initResult(2);
        }
        else if (result == ACAccountCredentialRenewResultRenewed) {
            //Everything is fine with iOS credentials
            NSLog(@"sync: ACAccountCredentialRenewResultRenewed -- error.code = %i", error.code);

            //Just to be sure that the session state is right
            if (FBSession.activeSession.state == FBSessionStateCreated ||
                FBSession.activeSession.state == FBSessionStateCreatedOpening ||
                FBSession.activeSession.state == FBSessionStateCreatedTokenLoaded) {

                //Open the active session
                [FBSession openActiveSessionWithReadPermissions:@[@"basic_info", @"user_photos"]
                                                   allowLoginUI:YES
                                              completionHandler:^(FBSession *session, FBSessionState status, NSError *error) {
                                                  NSLog(@"opensession: activeSession.state = %i", FBSession.activeSession.state);


                                              }];
            }
        }
    }];
}

谢谢！

Answer 1

您的问题是您在错误的地方寻找信息。退出查看Facebook SDK文档并转到Social.framework documentation。这些是关于系统的Facebook帐户。

Facebook iOS - 在SSO上禁用应用程序然后卸载应用程序时出错

1 个答案: