ios - 更改 datePicker 行和字体颜色

Question

有谁知道如何更改 UIDatePicker 的线条和字体颜色并避免使用私有(private) Apple api？我找到了这个，但它是非常肮脏的解决方案:

        datePicker.setValue(UIColor.white, forKey: "textColor")

        for subview in self.datePicker.subviews {

            if subview.frame.height <= 5 {

                subview.backgroundColor = UIColor.white
                subview.tintColor = UIColor.white
                subview.layer.borderColor = UIColor.white.cgColor
                subview.layer.borderWidth = 0.5            }
        }

        if let pickerView = self.datePicker.subviews.first {

            for subview in pickerView.subviews {

                if subview.frame.height <= 5 {

                    subview.backgroundColor = UIColor.white
                    subview.tintColor = UIColor.white
                    subview.layer.borderColor = UIColor.white.cgColor
                    subview.layer.borderWidth = 0.5
                }
            }
            self.datePicker.setValue(UIColor.white, forKey: "textColor")
        }

Answer 1

试试这个:

或按代码:

datePicker.setValue(UIColor.red, forKeyPath: "textColor")