Question

我的代码是：

let alert = UIAlertController(title: "title", message: "alert", preferredStyle: UIAlertControllerStyle.Alert)
let image_view = UIImageView(frame: CGRectMake(70, 10, 200, 200))
image_view.image = UIImage(named: "logo")
alert.view.addSubview(image_view)
alert.addTextFieldWithConfigurationHandler { textField in textField.placeholder = "a textfield"
alert.addTextFieldWithConfigurationHandler { textField in textField.placeholder = "another textfield" }

然而，这导致我的徽标与UITextFields重叠。我怎样才能确保它们整齐地堆叠在一起？

Answer 1

从我的角度来看，如果您想使用自定义用户界面创建UIAlertController，请尝试通过自己创建。或者，如果你想使用这样一个hacky解决方案：

let image = UIImage(named: "logo")
alert.setValue(image, forKey: "image")

Answer 2

尝试将框架设置为文本字段： -

    var textField = UITextField()        
    textField.frame = CGRect(x: , y: image_view.bounds.minY + 10, width: 250, height: 40)
    textField.placeholder = "a textfield"
    alertController.view.addSubview(textField)

设置框架对我有用。

Answer 3

您需要设计自定义警报控制器example 因为UIAlertController功能有限

@available(iOS 8.0, *)
open class UIAlertController : UIViewController {


    public convenience init(title: String?, message: String?, preferredStyle: UIAlertControllerStyle)


    open func addAction(_ action: UIAlertAction)

    open var actions: [UIAlertAction] { get }


    @available(iOS 9.0, *)
    open var preferredAction: UIAlertAction?


    open func addTextField(configurationHandler: ((UITextField) -> Swift.Void)? = nil)

    open var textFields: [UITextField]? { get }


    open var title: String?

    open var message: String?


    open var preferredStyle: UIAlertControllerStyle { get }
}

UIImage与UIAertField中的UITextField重叠

3 个答案: