如何在UIAlertController中将UIDatePicker添加到textField中？

// 创建一个UIAlertController
let alertController = UIAlertController(title: "选择日期", message: nil, preferredStyle: .actionSheet)

// 创建一个UIDatePicker
let datePicker = UIDatePicker()
datePicker.datePickerMode = .date
datePicker.minimumDate = Date()
datePicker.maximumDate = Calendar.current.date(byAdding: .year, value: 1, to: Date())

// 创建一个UITextField，并设置其输入视图为UIDatePicker
let textField = UITextField()
textField.inputView = datePicker

// 将UITextField添加到UIAlertController中
alertController.view.addSubview(textField)

// 添加一个UIAlertAction，用于关闭UIAlertController
let cancelAction = UIAlertAction(title: "取消", style: .cancel, handler: nil)
alertController.addAction(cancelAction)

// 显示UIAlertController
present(alertController, animated: true, completion: nil)