ios - 如何同时设置keyboardAppearance和inputView?.backgroundColor为dark？

Question

我有 datePicker，我将其设置为 textField 的 inputView。

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var textField: UITextField!
    var datePicker: UIDatePicker = UIDatePicker()

    override func viewDidLoad() {
        super.viewDidLoad()

        datePicker.datePickerMode = .date
        datePicker.setValue(UIColor.white, forKeyPath: "textColor")
        textField.inputView = datePicker

        textField.keyboardAppearance = .dark
        textField.inputView?.backgroundColor = #colorLiteral(red: 0.07627698034, green: 0.1097967997, blue: 0.1355849206, alpha: 1)
    }

}

我想同时拥有深色工具栏和深色 UIDatePicker 背景。但是，实际上，textField.inputView?.backgroundColor 不起作用。

但是如果我评论 textField.keyboardAppearance = .dark，datepicker 的背景会改变:

如何修复？

Answer 1

我认为使用datePicker，您不需要这个toolBar。你可以按照下面的方式摆脱它，

override func viewDidLoad() {
    super.viewDidLoad()

    datePicker.datePickerMode = .date
    datePicker.setValue(UIColor.white, forKeyPath: "textColor")
    textField.inputView = datePicker

    datePicker.backgroundColor = .black
    textField.inputAssistantItem.leadingBarButtonGroups = []
    textField.inputAssistantItem.trailingBarButtonGroups = []
}

如果你也想要 toolBar 那么你可以设置一个自定义 toolBar 和 black background color 如下，

let toolbar = UIToolbar(frame: CGRect(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 50))
toolbar.barTintColor = .black
toolbar.isTranslucent = false // Set to true to give some contrast. 

textField.inputAccessoryView = toolbar