ios - facebook swift sdk 0.2.0 swift 3.1 登录页面保持打开状态

Question

我正在使用；

• swift SDK 0.2.0 和
• swift 3.1

所以，在我的 viewcontroller (initial.swift) 上我已经

import UIKit
import FacebookCore
import FacebookLogin
...
override func viewDidLoad() {
if let accessToken = AccessToken.current {
   print("User is already logged in")
   ...
}
else {
   let loginButton = LoginButton(readPermissions: [ .publicProfile, .email ])
   loginButton.center = view.center

   //AFTER ACTION
   let loginManager = LoginManager()
   loginManager.logIn([ .publicProfile, .email ], viewController: self)
        { loginResult in
            switch loginResult {
            case .failed(let error):
                print(error)
                break
            case .cancelled:
                print("User cancelled login.")
            case .success(let grantedPermissions, let declinedPermissions, let accessToken):
                print("Logged in!")
            }
        }
}    

登录按钮按预期显示，但在权限页面后，白页保持打开状态，当我手动单击“完成”时，应用程序认为用户取消了登录。
有类似的线程建议缺少应用程序 delegate 函数(34734885)，但我猜这是 FBSDKCoreKit 和 FBSDKLoginKit 的解决方案，而不是新的Facebook swift SDK。再一次，我猜。有什么建议吗？

编辑
我也试过这个；

let myLoginButton = UIButton()
myLoginButton.backgroundColor = UIColor.darkGray
myLoginButton.frame = CGRect(0, 0, 180, 40);
myLoginButton.center = view.center;
myLoginButton.setTitle("My Login Button", for: UIControlState.normal)
// Add the button to the view
view.addSubview(myLoginButton)
// Handle clicks on the button
myLoginButton.addTarget(self, action: #selector(self.FBloginButtonClicked), for: UIControlEvents.touchUpInside)


@objc func FBloginButtonClicked() {  
    //AFTER ACTION
    let loginManager = LoginManager()
    loginManager.logIn([ .publicProfile, .email ], viewController: self)
    { loginResult in
        switch loginResult {
        case .failed(let error):
            print(error)
            break
        case .cancelled:
            print("User cancelled login.")
        case .success(let grantedPermissions, let declinedPermissions, let accessToken):
            print("Logged in!")
        }
    }
}

Answer 1

据我了解，您根据 facebook guide? 做了所有事情

包括这部分:

// Handle clicks on the button
  myLoginButton.addTarget(self, action: @selector(self.loginButtonClicked) forControlEvents: .TouchUpInside) 

和

// Once the button is clicked, show the login dialog
@objc func loginButtonClicked() {
  let loginManager = LoginManager()
  ...
  }