ios - 转至新的 View Controller

Question

因此，我使用 viewcontroller.swift 文件中的以下内容实现了 FB 登录到我的应用程序

func loginButton(loginButton: FBSDKLoginButton!, didCompleteWithResult result: FBSDKLoginManagerLoginResult!, error: NSError!) {

    if error == nil
    {
        print("Login Successful")
    }
    else
    {
        print(error.localizedDescription)
    }

}

从这一点来看，虽然我不确定如何/在哪里调用函数来在成功登录后进行继续，但我对 swift 很陌生，所以任何详细的解释都会很棒。

Answer 1

你的代码没问题，同时你需要为segue实现performSegueWithIdentifier

use segue identifier in Push Method and give the proper connection

如果您使用Identifier，请在您需要的地方调用此行 self.performSegueWithIdentifier("identifierName", 发件人: self)

  func loginButton(loginButton: FBSDKLoginButton!, didCompleteWithResult result: FBSDKLoginManagerLoginResult!, error: NSError!) {

    if error == nil
    {
        print("Login Successful")
        self.performSegueWithIdentifier("identifierName", sender: self)
    }
    else
    {
        print(error.localizedDescription)
    }

}

选择2

if use `storyboard ID` with connection less

例如

func loginButton(loginButton: FBSDKLoginButton!, didCompleteWithResult result: FBSDKLoginManagerLoginResult!, error: NSError!) {

    if error == nil
    {
        print("Login Successful")
          let second = self.storyboard?.instantiateViewControllerWithIdentifier("SecondViewControllerSegue") as? SecondViewController
    self.navigationController?.pushViewController(second!, animated: true)
    }
    else
    {
        print(error.localizedDescription)
    }

}