ios - 在 iOS10 中更改 UIDatePicker TextColor

Question

我有一种方法可以在 iOS 10 之前的版本上更改 UIDatePicker 的文本颜色，但对于 iOS10，这些解决方案似乎不再有效。我怎样才能恢复更改 UIDatePicker 的 textColor 的能力？

   if #available(iOS 10.0, *) {
        //Not sure of a way to do something similar here.
   } else {
        //The following lines change the textColor of UIDatePicker to white in iOS9 and older.
        self.setValue(UIColor.white, forKey: "textColor")
        self.sendAction(Selector("setHighlightsToday:"), to: nil, for: nil) 
   }

Answer 1

似乎没有任何改变，因为我什至可以使用 Swift 3 实现它，如下所示。

import UIKit

class ViewController: UIViewController
{
    override func viewDidLoad()
    {
        super.viewDidLoad()

        let temp: UIDatePicker = UIDatePicker(frame: self.view.frame)
        temp.setValue(UIColor.purple, forKey: "textColor")

        view.addSubview(temp)
    }

    override func didReceiveMemoryWarning()
    {
        super.didReceiveMemoryWarning()
    }
}