如何在Xamarin.Forms中更改日期选择器的区域设置？

using Xamarin.Forms.Internals;

...

public App()
{
    InitializeComponent();

    // 设置日期选择器的区域设置
    DependencyService.Register<ILocalizeService, LocalizeService>();
    var localizeService = DependencyService.Get<ILocalizeService>();
    localizeService.SetLocale(new CultureInfo("zh-CN")); // 设置为中文简体
}

using System.Globalization;
using Xamarin.Forms;

[assembly: Dependency(typeof(LocalizeService))]

namespace YourNamespace
{
    public class LocalizeService : ILocalizeService
    {
        public void SetLocale(CultureInfo ci)
        {
            CultureInfo.DefaultThreadCurrentCulture = ci;
            CultureInfo.DefaultThreadCurrentUICulture = ci;
            DependencyService.Get<ILocalize>().SetLocale(ci); // 设置本地化
        }
    }
}

using System.Globalization;

namespace YourNamespace
{
    public interface ILocalizeService
    {
        void SetLocale(CultureInfo ci);
    }
}