如何在c# (xamarin跨平台app)中获取屏幕尺寸

using Xamarin.Essentials;

var mainDisplayInfo = DeviceDisplay.MainDisplayInfo;
var screenWidth = mainDisplayInfo.Width;
var screenHeight = mainDisplayInfo.Height;

public interface IScreenSizeService
{
    Size GetScreenSize();
}

using Xamarin.Forms;
using YourAppName.Droid;
using Android.Content;
using Android.Util;

[assembly: Dependency(typeof(ScreenSizeService))]
namespace YourAppName.Droid
{
    public class ScreenSizeService : IScreenSizeService
    {
        public Size GetScreenSize()
        {
            var displayMetrics = Android.App.Application.Context.Resources.DisplayMetrics;
            var screenWidth = displayMetrics.WidthPixels / displayMetrics.Density;
            var screenHeight = displayMetrics.HeightPixels / displayMetrics.Density;
            return new Size(screenWidth, screenHeight);
        }
    }
}

using Xamarin.Forms;
using YourAppName.iOS;
using UIKit;

[assembly: Dependency(typeof(ScreenSizeService))]
namespace YourAppName.iOS
{
    public class ScreenSizeService : IScreenSizeService
    {
        public Size GetScreenSize()
        {
            var bounds = UIScreen.MainScreen.Bounds;
            var screenWidth = bounds.Width;
            var screenHeight = bounds.Height;
            return new Size(screenWidth, screenHeight);
        }
    }
}

var screenSizeService = DependencyService.Get<IScreenSizeService>();
var screenSize = screenSizeService.GetScreenSize();
var screenWidth = screenSize.Width;
var screenHeight = screenSize.Height;