iOS：UIAlertController 上的文本字段成为出现警报时的第一响应者

Question

我使用以下代码将 textField 添加到 UIAlertController 中：

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let anAlertController = UIAlertController(title:title, message:message, preferredStyle: .alert)\n        weak var weakSelf = self\n\n        let aDefaultAction = UIAlertAction(title:defaultTitle, style: UIAlertAction.Style.default) {\n            UIAlertAction in\n\n        anAlertController.addAction(aDefaultAction)\n    }\n\n    let aCancelAction = UIAlertAction(title:canceltTitle, style: UIAlertAction.Style.cancel) {\n        UIAlertAction in\n    }\n    anAlertController.addAction(aCancelAction)\n\n    anAlertController.addTextField { (textField) in\n        textField.textAlignment = NSTextAlignment.center\n        textField.text = "textFieldText"\n        textField.delegate = self\n        textField.resignFirstResponder()\n    }\n    self.present(anAlertController, animated: true, completion: nil)\n

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当我尝试呈现 UIAlertController 时，文本字段自动成为第一响应者。我不\xe2\x80\x99 不希望文本字段在呈现警报时成为第一响应者。我用谷歌搜索并尝试了几种方法来避免这种情况，但没有运气。有人能告诉如何实现这一目标吗？

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Answer 1

尝试这个

anAlertController.addTextField { (textField) in
        textField.textAlignment = .center
        textField.text = "textFieldText"
        textField.delegate = self as? UITextFieldDelegate
        textField.isEnabled = false

    }
    self.present(anAlertController, animated: false, completion: {
        if let getTextfield  = anAlertController.textFields?.first{
                getTextfield.resignFirstResponder()
                getTextfield.isEnabled = true
        }

    })