Scringo和Parse:如何同时登录Facebook？

Question

我的应用程序允许典型的注册(电子邮件、用户名、密码等)，但也允许Facebook/Twitter通过Parse注册/登录。如果可能的话，我想避免强迫用户在Facebook或Twitter上注册两次。目前，我已经添加了"Scringo's“编程注册功能，可以使用与我的应用程序相同的凭据将用户签名到"scringo”中；但是。如果他们和Facebook签约了呢？对于一个用户来说，登录Facebook，然后滑过一个条子，然后访问消息组件，被迫再次登录Facebook，这似乎让人非常困惑。

下面是我目前所拥有的，是否有链接Facebook/Twitter签名过程，以便两个Parse都能在一个按钮上按下Scringo获得信息？

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary       *)launchOptions
{

[Parse setApplicationId:@"...gzPI7Omoxc..."
              clientKey:@"...s22ZqIbM7n..."];

[PFTwitterUtils
 initializeWithConsumerKey:@"...W4XjjpHz..."
            consumerSecret:@"...Czjtht7v5..."];

[PFAnalytics trackAppOpenedWithLaunchOptions:launchOptions];
[PFFacebookUtils initializeFacebook];

[self configureNavigationBar];

[Scringo initWithAppId:@"...N2cCMhW1Bv..." completion:^{
    [Scringo addSidebar:self.window toLeft:YES];
     PFUser *currentUser = [PFUser currentUser];
    if (! [ScringoUser currentUser].isAuthenticated) {
        [ScringoUser signUpWithEmail:currentUser.email userName:currentUser.username password:@"notforyou" completion:^(ScringoUser *aUser, BOOL isSuccess) {
            if (isSuccess) {
                [currentUser setObject:aUser.userId forKey:@"ScringoUserId"];
                [currentUser saveInBackground];
            }
        }];
    }
     }];

return YES;
}

Answer 1

原来SDK中有一个方法(我只是忽略了它)

[Scringo connectFacebook]

如果该应用程序已经成功登录到facebook，那么调用它也可以验证Scringo的身份。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{

[Parse setApplicationId:@"gzPI7OmoxcSYqQGWASjzVd8lP5q8FVJqh2ZLsXnp"
              clientKey:@"s22ZqIbM7n8SN1End57vmTmmeL55YnIen7dmMhIR"];

[PFTwitterUtils
 initializeWithConsumerKey:@"W4XjjpHzG03bWK8R0iPvs27Yy"
            consumerSecret:@"Czjtht7v58yfZ00QV5Gkumfdy8RauCyPllYh5SPm00I3M6fkPP"];

[PFAnalytics trackAppOpenedWithLaunchOptions:launchOptions];
[PFFacebookUtils initializeFacebook];

[self configureNavigationBar];

[Scringo initWithAppId:@"cvOV3lLwQN2cCMhW1BvnW2eWnyoiLNgA" completion:^{
    [Scringo addSidebar:self.window toLeft:YES];
     PFUser *currentUser = [PFUser currentUser];
    if (! [ScringoUser currentUser].isAuthenticated) {
        if (currentUser) {
            if (currentUser.email) [Scringo connectFacebook];
        else
        [ScringoUser signUpWithEmail:currentUser.email userName:currentUser.username password:@"notforyou" completion:^(ScringoUser *aUser, BOOL isSuccess) {
            if (isSuccess) {
                [currentUser setObject:aUser.userId forKey:@"ScringoUserId"];
                [currentUser saveInBackground];
            }
        }];
        }
    }
     }];

return YES;
}

这是假设PFUser已经存在，所以我还首次为登录facebook的用户添加了相同的调用

- (void)logInViewController:(PFLogInViewController *)logInController didLogInUser:(PFUser *)user {
[self dismissViewControllerAnimated:YES completion:^{
    if (!self.currentUser.email) [Scringo connectFacebook];
}];
}

测试和工作。