按Enter进入textField选择

Question

我只想知道在按下textField中的enter按钮时是否以及如何选择要做什么。

我想通过在textField中触摸Enter来从电子邮件/用户textField传递到密码textField，并通过按下“登录”按钮来触发被调用的操作。

my code trigged when the login button is pressed + my login screen

我是否需要将“ @IBAction func loginButtonWasPressed（_ sender：UIButton）{}中的所有行放入函数中，并在密码textField上按enter键时调用它（idk怎么做）

谢谢您的帮助！

Answer 1

@IBOutlet weak var firstNameTextField: UITextField!
@IBOutlet weak var lastNameTextField: UITextField!
@IBOutlet weak var emailTextField: UITextField!
@IBOutlet weak var passwordTextField: UITextField!

override func viewDidLoad() {
    super.viewDidLoad()

    self.setupTextfields()
}

@IBAction func signupDidTap(_ sender: Any) {
    print("Sign up")
}

func setupTextfields(){
    self.firstNameTextField.addTarget(self.lastNameTextField, action: #selector(becomeFirstResponder), for: .editingDidEndOnExit)
    self.lastNameTextField.addTarget(self.emailTextField, action: #selector(becomeFirstResponder), for: .editingDidEndOnExit)
    self.emailTextField.addTarget(self.passwordTextField, action: #selector(becomeFirstResponder), for: .editingDidEndOnExit)
    self.passwordTextField.addTarget(nil, action: #selector(signupDidTap), for: .editingDidEndOnExit)
}