使用Facebook SDK在iOS 10上登录，共享和使用Facebook SDK时获取空白页4.15.1

Question

使用FBSDKLoginKit，FBSDKShareKit登录，共享链接和我的应用程序中的链接时出现此错误。我用FBSDKLoginButton登录

@property (nonatomic, strong) IBOutlet FBSDKLoginButton *loginButton; 

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    self.loginButton.publishPermissions = @[@"publish_actions"]; 
} 

使用FBSDKShareKit分享 ：

- (FBSDKShareDialog *)getShareDialogWithContentURL:(FBSDKShareLinkContent *)content 
{ 
    FBSDKShareDialog *shareDialog = [[FBSDKShareDialog alloc] init]; 
    shareDialog.shareContent = content; 
    return shareDialog; 
} 

- (IBAction)ShareAppOnFB:(UIButton *)sender { 

     FBSDKShareLinkContent *content = [[FBSDKShareLinkContent alloc] init]; 
     FBSDKShareDialog *facebookShareDialog = [self getShareDialogWithContentURL:content]; 

     if ([facebookShareDialog canShow]) { 
      [FBSDKShareDialog showFromViewController:self.parentViewController 
             withContent:content 
              delegate:self]; 
     } 

} 

使用FBSDKShareKit喜欢：

FBSDKLikeButton *like = [[FBSDKLikeButton alloc] init]; 
like.objectID = @""; 
like.frame = CGRectOffset(like.frame, 50, 100); 
[self.view addSubview:like]; 

一切工作正常iOS上的9和iOS 8，但是当我升级到Xcode 8并在iOS 10上运行，当点击登录，共享和类似按钮时，我立即得到一个空白页面，之后什么也没有发生。我试图升级到Facebook SDK 4.15.1，但没有更好的，这个错误仍然发生。任何人都知道如何解决iOS 10上的这个错误？

Answer 1

FB SDK使用SFSafariViewController，显然在iOS 10中，它只能从根视图控制器呈现。 的解决方案是创建一个新的UIWindow实例，添加一个普通的UIViewController为根视图控制器，并调用FB SDK与这个新的UIViewController：

UIViewController* socialVC = [[UIViewController alloc] init]; 
// window instance needs to be retained 
self.socialWindow = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 
self.socialWindow.rootViewController = socialVC; 
// show new window in top of every other UIs 
self.socialWindow.windowLevel = UIWindowLevelStatusBar + 10; 
[self.socialWindow makeKeyAndVisible]; 

// show FB Share Dialog 
[FBSDKShareDialog showFromViewController:socialVC withContent:content delegate:self]; 

不要忘了隐藏在FB SDK的委托被称为窗口：

self.socialWindow.hidden = YES;