此bounty已结束。回答此问题可获得+100声望奖励。赏金宽限期8小时后结束。Shubham Tyagi希望引起更多关注这个问题：DatePicker颜色没有变化的原因

无法在Xamarin Forms Project for Android中更改DatePicker小部件的背景色（Accent）。TimePicker工作正常。
Pink DatePicker Issue的
Correct TimePicker Color的
这是我知道要更改的文件。我几乎试过了所有可能的解决办法。Xamarin项目已更新。在多个设备上进行了尝试，真实的和虚拟。
第一个月

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="launcher_background">#FFFFFF</color>
    <color name="colorPrimary">#3F51B5</color>
    <color name="colorPrimaryDark">#004193</color>
    <color name="colorAccent">#004193</color>
    <color name="colorWhite">#FFFFFF</color>
</resources>

字符串
Styles.xml个

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="MainTheme" parent="MainTheme.Base">
        <item name="android:textAllCaps">false</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>
    <style name="MainTheme.Base" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>
    <style name="MainTheme.Splash" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="android:windowTranslucentStatus">true</item>
        <item name="android:windowTranslucentNavigation">true</item>
        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
        <item name="android:windowBackground">@drawable/splash_screen</item>
        <item name="android:windowNoTitle">true</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>
</resources>

型
自定义渲染器

public class OKCancelDatePickerRenderer : DatePickerRenderer
    {
        public OKCancelDatePickerRenderer(Context context) : base(context)
        {

        }

        protected override void OnElementChanged(ElementChangedEventArgs<DatePicker> e)
        {
            base.OnElementChanged(e);

            if (Control != null) // also tried e.NewElement etc.
            {
                Control.SetBackgroundColor(Android.Graphics.Color.Blue);
                Control.SetHighlightColor(Android.Graphics.Color.Orange);
                Control.SetHintTextColor(Android.Graphics.Color.Green);
                Control.SetLinkTextColor(Android.Graphics.Color.Yellow);
                Control.SetOutlineAmbientShadowColor(Android.Graphics.Color.Red);
                Control.SetOutlineSpotShadowColor(Android.Graphics.Color.DeepSkyBlue);
            }
        }
    }

型