ios - spritekit 中的 Facebook 登录总是返回已取消

Question

我目前正在使用下面的代码通过自定义 Sprite 节点按钮登录 facebook:

func runLoginForFacebook() {

     print("logging in with facebook...")
     print("FACEBOOK CURRENT TOKEN ---->\(FBSDKAccessToken.current())")

     let login = FBSDKLoginManager()
     let viewController = UIApplication.shared.keyWindow?.rootViewController
     login.logIn(withReadPermissions: ["public_profile"], from: viewController, handler: { result, error in

    if error != nil {
        print("Process error \(error!.localizedDescription)")
    } else if result?.isCancelled != nil {
        print("Cancelled \(error?.localizedDescription)")
    } else {
        print("Logged in")
        signIntoFirebase()
    }
  })
}

现在这允许我登录并点击继续按钮，因此屏幕被关闭，但它总是返回 isCanceled 为是而不是登录。

我在整个网站上搜索了答案，他们都说应用委托(delegate)是问题所在，我的应用委托(delegate)似乎没问题:

class AppDelegate: UIResponder, UIApplicationDelegate, MessagingDelegate {

var window: UIWindow?

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions:

   return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
}

func application(_ application: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {

    let handled: Bool = FBSDKApplicationDelegate.sharedInstance().application(application, open: url, sourceApplication: options[UIApplication.OpenURLOptionsKey.sourceApplication] as? String, annotation: options[UIApplication.OpenURLOptionsKey.annotation])
    // Add any custom logic here.

    return handled
}

下一个解决方案是，我在 facebook 的开发人员门户中的应用程序中没有任何测试用户，我检查过，但情况并非如此，我拥有与用于作为测试用户/管理员登录的相同帐户应用程序。

我还检查了我的 info.plist 文件，一切似乎都很好(见下文。出于隐私原因，我在姓名和号码中加入了 XXXX 号码检查正常并且与开发人员门户 ID)

    <string>UIInterfaceOrientationPortraitUpsideDown</string>
    <string>UIInterfaceOrientationLandscapeLeft</string>
    <string>UIInterfaceOrientationLandscapeRight</string>
</array>
<key>CFBundleURLTypes</key>
<array>
    <dict>
        <key>CFBundleURLSchemes</key>
        <array>
            <string>fb4961923108XXXXX</string>
        </array>
    </dict>
</array>
<key>FacebookAppID</key>
<string>496192XXXXXXXX</string>
<key>FacebookDisplayName</key>
<string>NaXXX</string>
<key>LSApplicationQueriesSchemes</key>
<array>
    <string>fbapi</string>
    <string>fb-messenger-share-api</string>
    <string>fbauth2</string>
    <string>fbshareextension</string>
</array>

有人可以帮助我吗？任何想法将不胜感激，因为我已经在这里工作了一天，但我无法弄清楚。

Answer 1

你正在检查 if result?.isCancelled 不是 nil，所以如果你有一个结果，它永远是 true 或 false，永远不会是 nil。试试下面的代码(注意这没有经过测试，所以如果我搞砸了语法，请随时用正确的代码编辑我的答案)

func runLoginForFacebook() {

     print("logging in with facebook...")
     print("FACEBOOK CURRENT TOKEN ---->\(FBSDKAccessToken.current())")

     let login = FBSDKLoginManager()
     let viewController = UIApplication.shared.keyWindow?.rootViewController
     login.logIn(withReadPermissions: ["public_profile"], from: viewController, handler: { result, error in

          guard let result = result else {
              print("No result found")
          }
          if result.isCancelled {
              print("Cancelled \(error?.localizedDescription)")

          } else if let error = error {
              print("Process error \(error.localizedDescription)")
          } else {
              print("Logged in")
              signIntoFirebase()
          }
     })
}