Shaker/Avalonia/ShakerApp/Program.cs

using Avalonia;
using Avalonia.Media.Fonts;
using Avalonia.Media;
using System;

namespace ShakerApp
{

    internal class Program
    {
        // Initialization code. Don't use any Avalonia, third-party APIs or any
        // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
        // yet and stuff might break.
        [STAThread]
        public static void Main(string[] args) => BuildAvaloniaApp()
            .StartWithClassicDesktopLifetime(args);

        // Avalonia configuration, don't remove; also used by visual designer.
        public static AppBuilder BuildAvaloniaApp()
            => AppBuilder.Configure<App>()
                .UsePlatformDetect()
                .LogToTrace();
    }
    public static class FontExtensions
    {
        public static AppBuilder UseFontAlibaba(this AppBuilder appBuilder, Action<FontSettings>? configdelegate = default)
        {
            var setting = new FontSettings();
            configdelegate?.Invoke(setting);
            return appBuilder.With(new FontManagerOptions()
            {
                DefaultFamilyName = setting.DefaultFontFamily,
                FontFallbacks = new[]
                {
                    new FontFallback()
                    {
                        FontFamily = setting.DefaultFontFamily,
                    }
                }
            }).ConfigureFonts(manger => manger.AddFontCollection(new EmbeddedFontCollection(setting.Key, setting.Source)));
        }
        public class FontSettings
        {
            public string DefaultFontFamily = "fonts:ShakerAppFontFamilies#Alibaba PuHuiTi 3.0";
            public Uri Key { get; set; } = new Uri("fonts:ShakerAppFontFamilies", UriKind.Absolute);
            public Uri Source { get; set; } = new Uri("avares://ShakerApp/Fonts", UriKind.Absolute);
        }
    }
}