Question

我在键盘上有一种奇怪的行为。但仅限于其中一个视图控制器。我有另一个带有UITextField的视图控制器，并且其中一个工作符号（一旦我按下返回按钮就消失了）。奇怪的是，一个甚至根本没有设置。它只是对viewdidload和viewwilldissapear上的resignfirstresponder的第一反应。
然而，这个键盘，VIDEO OF NASTY KEYBOARD是一个令人讨厌的鼻屎。注意：在视频中，我执行以下操作： *点击UITextfield
*键盘出现（查看向上移动）
*我键入lol然后按发送（没有任何反应）
*我开始在屏幕周围疯狂地敲击（除了UITextField）
*键盘消失

以下是此视图的代码：

class ChatScreenVC: UIViewController, UITextFieldDelegate {
    var gameDelegate: GameManagerDelegate?
    var chatLogString: String = ""
    var offsetY:CGFloat = 0
    @IBOutlet weak var chatView: UIView!
    @IBOutlet weak var closeBtn: UIButton!
    @IBOutlet weak var titleBtn: UILabel!
    @IBOutlet weak var chatLog: UITextView!
    @IBOutlet weak var chatInput: UITextField!
    @IBOutlet weak var sendBtn: UIButton!
    @IBOutlet weak var viewCenterConstraint: NSLayoutConstraint!

    @IBAction func inputTapped(_ sender: Any) {
        chatInput.becomeFirstResponder()
    }

    @IBAction func closeTapped(_ sender: Any) {
        self.dismiss(animated: true, completion: nil)
    }

    @IBAction func sendTapped(_ sender: Any) {
        if chatInput.text != nil && chatInput.text != "" && chatInput.text != " " {
            gameDelegate?.sendChat(message: chatInput.text!)
        }
        chatInput.text = ""
        chatInput.resignFirstResponder()
        self.view.endEditing(true)
    }

    @objc func keyboardWillShow(_ notification: Notification) {
        if let keyboardFrame: NSValue = notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue {
            let keyboardRectangle = keyboardFrame.cgRectValue
            let keyboardHeight = keyboardRectangle.height
            viewCenterConstraint.constant = -keyboardHeight
        }
    }

    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
        print("THIS IS HAPPENING!")
        chatInput.resignFirstResponder()
        self.view.endEditing(true)
        return true
    }

    @objc func keyboardWillHide(_ notification: Notification) {
        if let keyboardFrame: NSValue = notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue {
            viewCenterConstraint.constant = 0
        }
    }

    @objc func reloadData() {
        chatLogString = (gameDelegate?.updateChatString())!
        chatLog.text = chatLogString
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        chatLog.text = chatLogString
        chatLog.isEditable = false
        chatInput.autocorrectionType = .no
        // Do any additional setup after loading the view.
    }

    override func viewWillAppear(_ animated: Bool) {
        setupView()
        animateView()
    }

    override func viewWillDisappear(_ animated: Bool) {
        chatInput.resignFirstResponder()
    }

    override func viewDidAppear(_ animated: Bool) {
        NotificationCenter.default.addObserver(self, selector: #selector(self.reloadData), name: Notification.Name(rawValue: SMACK_TALK), object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow), name: NSNotification.Name.UIKeyboardWillShow, object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide), name: NSNotification.Name.UIKeyboardWillHide, object: nil)
    }

    override func viewDidDisappear(_ animated: Bool) {
        NotificationCenter.default.removeObserver(self, name: Notification.Name(rawValue: SMACK_TALK), object: nil)
        NotificationCenter.default.removeObserver(self, name: NSNotification.Name.UIKeyboardWillShow, object: nil)
    }

}

在您去之前告诉我＆＃34;不要同时使用resignfirstresponder和enditing（true）＆＃34;我得清楚的是，我单独和共同尝试过，但仍然没有得到任何回应。

Answer 1

您可以在sendChat()之前退出键盘。我认为这是同步调用，它会阻止主线程有时这就是为什么会发生这种奇怪的行为。

在进行API调用之前

chatInput.resignFirstResponder()。

@IBAction func sendTapped(_ sender: Any) {
    if chatInput.text != nil && chatInput.text != "" && chatInput.text != " " {
        chatInput.resignFirstResponder()
        self.view.endEditing(true)

        gameDelegate?.sendChat(message: chatInput.text!)
    }
}

这个键盘不会离开

1 个答案: