Question

我正在尝试从我在stackview内创建的文本字段中获取文本，但是我无法做到这一点。我想知道是否有人可以帮助我。

例如，我想做的是这样的：当我按下按钮Label.text = myTextField.text。

这是我的代码：

var mySttackView: UIStackView = {
    //NAMETEXTFIELD
    let myTextField = UITextField() //<---- want to get the text from this when I press a button but I can't get access to it
    myTextField.translatesAutoresizingMaskIntoConstraints = false
    myTextField.placeholder = "MY TEXT"

    let theStackview: UIStackView = UIStackView(arrangedSubviews: [myTextField])
    theStackview.axis = .vertical
    theStackview.translatesAutoresizingMaskIntoConstraints = false
    theStackview.distribution = .fillEqually
    theStackview.spacing = 12
    return allTextFields
}()

Answer 1

如果要访问myTextField，请在创建UIStackView的闭包之外声明它。

如果myTextField和myStackView是实例变量，那么除非创建myStackView的闭包，否则也不能引用myTextField，除非您还声明了myStackView是lazy。

let myTextField = UITextField()

lazy var myStackView: UIStackView = {
    myTextField.translatesAutoresizingMaskIntoConstraints = false
    myTextField.placeholder = "MY TEXT"

    let theStackview: UIStackView = UIStackView(arrangedSubviews: [myTextField])
    theStackview.axis = .vertical
    theStackview.translatesAutoresizingMaskIntoConstraints = false
    theStackview.distribution = .fillEqually
    theStackview.spacing = 12
    return theStackview
}()

如何从StackView内的UITextfield获取文本

1 个答案: