每次尝试在登录页面上登录用户时，我都会不断收到无效的登录参数

Question

我正在使用swift with xcode上解析我一直收到此错误：

[Error]: invalid login parameters (Code: 101, Version: 1.7.2)

每当我尝试登录用户时，我都知道用户是在解析后端中创建的，并且其信息是正确的。我该怎么做才能阻止此操作发生，并在没有应用程序发送无效登录参数的情况下登录？

这是我的LoginViewController：

import Foundation
import Parse
import UIKit
import Bolts
class LoginViewController: UIViewController, UITextFieldDelegate {

@IBOutlet weak var loginStatusLabel: UILabel!
@IBOutlet weak var emailTextField: UITextField!

@IBOutlet weak var passwordTextField: UITextField!

@IBOutlet weak var loginButton: UIButton!

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    emailTextField.delegate = self
    passwordTextField.delegate = self
}
override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}
@IBAction func loginButtonPress(sender: AnyObject) {
    login(emailTextField.text, password: passwordTextField.text)
}

func login(email: String, password: String)
{
    PFUser.logInWithUsernameInBackground("email", password: "password")
        {
        (user: PFUser?, error: NSError?) -> Void in
            if user != nil
            {
                user!.fetch()
                if user!.objectForKey("emailVerified") as! Bool
                {
                    self.loginStatusLabel.text = "Success!"
                }
                else if !(user!.objectForKey("emailVerified") as! Bool)
                {
                    self.loginStatusLabel.text = "Verify your email address!"
                }
                else // status is "missing"
                {
                    //TODO: Handle this error better
                    self.loginStatusLabel.text = "Verification status: Missing"
                }
            }
            else
            {
                if let errorField = error!.userInfo
                {
                    self.loginStatusLabel.text = (errorField["error"] as! NSString) as String
                }
                else
                {
                    // No userInfo dictionary present
                    // Help from http://stackoverflow.com/questions/25381338/nsobject-anyobject-does-not-have-a-member-named-subscript-error-in-xcode
                }
            }
    }
}
func textFieldShouldReturn(textField: UITextField) -> Bool {
    textField.resignFirstResponder()
    return true;
}
}

我在登录用户时会出错吗？

Answer 1

您将字符串"email"和"password"传递给分析，而不是变量email和password的实际值。

将代码更改为：

PFUser.logInWithUsernameInBackground(email, password: password)

没有""