fix

src/Common.CoreLib/Application/Settings/SettingsHost.cs

@@ -6,8 +6,6 @@ namespace System.Application.Settings
 {
     public abstract class SettingsHostBase
     {
-        protected static readonly bool IsDesktopPlatform = OperatingSystem2.IsWindows || OperatingSystem2.IsMacOS || (OperatingSystem2.IsLinux && !OperatingSystem2.IsAndroid);
-
         static readonly Dictionary<Type, SettingsHostBase> instances = new();
 
         public string CategoryName => GetCategoryName();

src/ST.Client.Android/UI/MainApplication.cs

@@ -36,10 +36,6 @@ namespace System.Application.UI
 
         public MainApplication(IntPtr javaReference, JniHandleOwnership transfer) : base(javaReference, transfer)
         {
-            IViewModelBase.IsInDesignMode = false;
-            IViewModelBase.IsMobileLayout = true;
-            IWindowViewModel.IsSupportedSizePosition = false;
-
             // 此页面当前使用 Square.Picasso 库加载图片
             AuthTradeWindowViewModel.IsLoadImage = false;
         }

src/ST.Client/Settings/GameLibrarySettings.Avalonia.cs

@@ -13,7 +13,7 @@ namespace System.Application.Settings
 {
     partial class GameLibrarySettings
     {
-        static readonly SerializableProperty<Dictionary<uint, string?>>? _HideGameList = IsDesktopPlatform ? GetProperty(defaultValue: new Dictionary<uint, string?>(), autoSave: true) : null;
+        static readonly SerializableProperty<Dictionary<uint, string?>>? _HideGameList = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: new Dictionary<uint, string?>(), autoSave: true) : null;
         /// <summary>
         /// 隐藏的游戏列表
         /// </summary>
@@ -22,7 +22,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<Dictionary<uint, string?>> HideGameList => _HideGameList ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<Dictionary<uint, string?>>? _AFKAppList = IsDesktopPlatform ? GetProperty(defaultValue: new Dictionary<uint, string?>(), autoSave: true) : null;
+        readonly static SerializableProperty<Dictionary<uint, string?>>? _AFKAppList = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: new Dictionary<uint, string?>(), autoSave: true) : null;
         /// <summary>
         /// 挂时长游戏列表
         /// </summary>
@@ -32,7 +32,7 @@ namespace System.Application.Settings
         public static SerializableProperty<Dictionary<uint, string?>> AFKAppList => _AFKAppList ?? throw new PlatformNotSupportedException();
 
         readonly static SerializableProperty<bool>? _IsAutoAFKApps
-            = IsDesktopPlatform ? GetProperty(defaultValue: true, autoSave: true) : null;
+            = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: true, autoSave: true) : null;
         /// <summary>
         /// 启用自动挂机
         /// </summary>
@@ -44,7 +44,7 @@ namespace System.Application.Settings
         // [SupportedOSPlatform("Windows")]
         // [SupportedOSPlatform("macOS")]
         // [SupportedOSPlatform("Linux")]
-        // public static readonly Lazy<ReadOnlyCollection<uint>>? DefaultIgnoreList = IsDesktopPlatform ? new(new ReadOnlyCollection<uint>(new uint[]
+        // public static readonly Lazy<ReadOnlyCollection<uint>>? DefaultIgnoreList = IApplication.IsDesktopPlatform ? new(new ReadOnlyCollection<uint>(new uint[]
         // {
         //     5,
         //     7,

src/ST.Client/Settings/GeneralSettings.Avalonia.cs

@@ -17,7 +17,7 @@ namespace System.Application.Settings
 {
     partial class GeneralSettings
     {
-        readonly static SerializableProperty<bool>? _WindowsStartupAutoRun = IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
+        readonly static SerializableProperty<bool>? _WindowsStartupAutoRun = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
         /// <summary>
         /// 程序是否开机自启动
         /// </summary>
@@ -26,7 +26,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<bool> WindowsStartupAutoRun => _WindowsStartupAutoRun ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<bool>? _IsStartupAppMinimized = IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
+        readonly static SerializableProperty<bool>? _IsStartupAppMinimized = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
         /// <summary>
         /// 程序启动时最小化
         /// </summary>
@@ -36,7 +36,7 @@ namespace System.Application.Settings
         public static SerializableProperty<bool>? IsStartupAppMinimized => _IsStartupAppMinimized ?? throw new PlatformNotSupportedException();
 
         readonly static SerializableProperty<bool>? _IsSteamAppListLocalCache
-            = IsDesktopPlatform ? GetProperty(defaultValue: true, autoSave: true) : null;
+            = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: true, autoSave: true) : null;
         /// <summary>
         /// 启用游戏列表本地缓存
         /// </summary>
@@ -45,7 +45,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<bool>? IsSteamAppListLocalCache => _IsSteamAppListLocalCache ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<IReadOnlyDictionary<Platform, string>>? _TextReaderProvider = IsDesktopPlatform ? GetProperty(defaultValue: (IReadOnlyDictionary<Platform, string>?)null, autoSave: true) : null;
+        readonly static SerializableProperty<IReadOnlyDictionary<Platform, string>>? _TextReaderProvider = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: (IReadOnlyDictionary<Platform, string>?)null, autoSave: true) : null;
         /// <summary>
         /// 用户设置的文本阅读器提供商，根据平台值不同，值格式为 枚举字符串 或 程序路径
         /// </summary>
@@ -54,7 +54,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<IReadOnlyDictionary<Platform, string>> TextReaderProvider => _TextReaderProvider ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<IHostsFileService.EncodingType>? _HostsEncodingType = IsDesktopPlatform ? GetProperty(defaultValue: default(IHostsFileService.EncodingType), autoSave: true) : null;
+        readonly static SerializableProperty<IHostsFileService.EncodingType>? _HostsEncodingType = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: default(IHostsFileService.EncodingType), autoSave: true) : null;
         /// <summary>
         /// Hosts 文件编码类型
         /// </summary>
@@ -63,7 +63,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<IHostsFileService.EncodingType> HostsEncodingType => _HostsEncodingType ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<bool>? _UseGPURendering = IsDesktopPlatform ? GetProperty(defaultValue: !OperatingSystem2.IsWindows7, autoSave: true) : null;
+        readonly static SerializableProperty<bool>? _UseGPURendering = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: !OperatingSystem2.IsWindows7, autoSave: true) : null;
         /// <summary>
         /// 使用硬件加速
         /// </summary>

src/ST.Client/Settings/ProxySettings.Avalonia.cs

@@ -14,7 +14,7 @@ namespace System.Application.Settings
     partial class ProxySettings
     {
         readonly static SerializableProperty<bool>? _IsProxyGOG
-            = IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
+            = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
         /// <summary>
         /// 启用GOG插件代理
         /// </summary>
@@ -24,7 +24,7 @@ namespace System.Application.Settings
         public static SerializableProperty<bool> IsProxyGOG => _IsProxyGOG ?? throw new PlatformNotSupportedException();
 
         readonly static SerializableProperty<bool>? _EnableWindowsProxy
-            = IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
+            = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
         /// <summary>
         /// 启用系统代理模式
         /// </summary>
@@ -34,7 +34,7 @@ namespace System.Application.Settings
         public static SerializableProperty<bool> EnableWindowsProxy => _EnableWindowsProxy ?? throw new PlatformNotSupportedException();
 
         readonly static SerializableProperty<bool>? _IsOnlyWorkSteamBrowser
-             = IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
+             = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
         /// <summary>
         /// 是否只针对Steam内置浏览器启用脚本
         /// </summary>

src/ST.Client/Settings/SteamAccountSettings.cs

@@ -16,7 +16,7 @@ namespace System.Application.Settings
     {
         #region Compat
 
-        readonly static SerializableProperty<ConcurrentDictionary<long, string?>>? _AccountRemarks = IsDesktopPlatform ? Compat.GetProperty(defaultValue: new ConcurrentDictionary<long, string?>(), autoSave: false) : null;
+        readonly static SerializableProperty<ConcurrentDictionary<long, string?>>? _AccountRemarks = IApplication.IsDesktopPlatform ? Compat.GetProperty(defaultValue: new ConcurrentDictionary<long, string?>(), autoSave: false) : null;
         /// <summary>
         /// Steam账号备注字典
         /// </summary>

src/ST.Client/Settings/UISettings.Avalonia.cs

@@ -26,7 +26,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<ConcurrentDictionary<string, SizePosition>> WindowSizePositions => _WindowSizePositions ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<string>? _FontName = IsDesktopPlatform ? GetProperty(defaultValue: "Default", autoSave: true) : null;
+        readonly static SerializableProperty<string>? _FontName = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: "Default", autoSave: true) : null;
         /// <summary>
         /// 字体
         /// </summary>
@@ -35,7 +35,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<string> FontName => _FontName ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<double>? _AcrylicOpacity = IsDesktopPlatform ? GetProperty(defaultValue: .8, autoSave: true) : null;
+        readonly static SerializableProperty<double>? _AcrylicOpacity = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: .8, autoSave: true) : null;
         /// <summary>
         /// 窗口背景透明度
         /// </summary>
@@ -44,7 +44,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<double> AcrylicOpacity => _AcrylicOpacity ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<int>? _WindowBackgroundMateria = IsDesktopPlatform ? GetProperty(defaultValue: OperatingSystem2.IsWindows11AtLeast ? 4 : 3, autoSave: true) : null;
+        readonly static SerializableProperty<int>? _WindowBackgroundMateria = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: OperatingSystem2.IsWindows11AtLeast ? 4 : 3, autoSave: true) : null;
         /// <summary>
         /// 窗口背景材质
         /// </summary>
@@ -53,7 +53,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<int> WindowBackgroundMateria => _WindowBackgroundMateria ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<int>? _AppGridSize = IsDesktopPlatform ? GetProperty(defaultValue: 150, autoSave: true) : null;
+        readonly static SerializableProperty<int>? _AppGridSize = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: 150, autoSave: true) : null;
         /// <summary>
         /// 库存游戏封面大小
         /// </summary>
@@ -62,7 +62,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<int> AppGridSize => _AppGridSize ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<bool>? _SteamAccountRemarkReplaceName = IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
+        readonly static SerializableProperty<bool>? _SteamAccountRemarkReplaceName = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
         /// <summary>
         /// Steam账号备注替换名称显示
         /// </summary>
@@ -71,7 +71,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<bool> SteamAccountRemarkReplaceName => _SteamAccountRemarkReplaceName ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<bool>? _EnableFilletUI = IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
+        readonly static SerializableProperty<bool>? _EnableFilletUI = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
         /// <summary>
         /// 启用圆角界面
         /// </summary>
@@ -80,7 +80,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<bool> EnableFilletUI => _EnableFilletUI ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<bool>? _EnableDesktopBackground = IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
+        readonly static SerializableProperty<bool>? _EnableDesktopBackground = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
         /// <summary>
         /// 启用动态桌面背景
         /// </summary>
@@ -90,7 +90,7 @@ namespace System.Application.Settings
         public static SerializableProperty<bool> EnableDesktopBackground => _EnableDesktopBackground ?? throw new PlatformNotSupportedException();
 
         readonly static SerializableProperty<bool>? _EnableCustomBackgroundImage
-            = IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
+            = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
         /// <summary>
         /// 启用自定义背景图片
         /// </summary>
@@ -99,7 +99,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<bool> EnableCustomBackgroundImage => _EnableCustomBackgroundImage ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<string>? _BackgroundImagePath = IsDesktopPlatform ? GetProperty(defaultValue: "avares://System.Application.SteamTools.Client.Avalonia/Application/UI/Assets/AppResources/Placeholders/0.png", autoSave: true) : null;
+        readonly static SerializableProperty<string>? _BackgroundImagePath = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: "avares://System.Application.SteamTools.Client.Avalonia/Application/UI/Assets/AppResources/Placeholders/0.png", autoSave: true) : null;
         /// <summary>
         /// 背景图片路径
         /// </summary>
@@ -108,7 +108,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<string> BackgroundImagePath => _BackgroundImagePath ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<string>? _ThemeAccent = IsDesktopPlatform ? GetProperty(defaultValue: "#FF0078D7", autoSave: true) : null;
+        readonly static SerializableProperty<string>? _ThemeAccent = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: "#FF0078D7", autoSave: true) : null;
         /// <summary>
         /// 主题颜色(十六进制字符串)
         /// </summary>
@@ -117,7 +117,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<string> ThemeAccent => _ThemeAccent ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<bool>? _GetUserThemeAccent = IsDesktopPlatform ? GetProperty(defaultValue: true, autoSave: true) : null;
+        readonly static SerializableProperty<bool>? _GetUserThemeAccent = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: true, autoSave: true) : null;
         /// <summary>
         /// 主题颜色从系统获取
         /// </summary>
@@ -126,7 +126,7 @@ namespace System.Application.Settings
         [SupportedOSPlatform("Linux")]
         public static SerializableProperty<bool> GetUserThemeAccent => _GetUserThemeAccent ?? throw new PlatformNotSupportedException();
 
-        readonly static SerializableProperty<bool>? _MainMenuExpandedState = IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
+        readonly static SerializableProperty<bool>? _MainMenuExpandedState = IApplication.IsDesktopPlatform ? GetProperty(defaultValue: false, autoSave: true) : null;
         /// <summary>
         /// 主菜单展开状态
         /// </summary>

src/ST.Client/UI/IApplication.cs

@@ -12,6 +12,11 @@ namespace System.Application.UI
     /// </summary>
     public partial interface IApplication
     {
+        /// <summary>
+        /// IsWindows or IsMacOS or (IsLinux and !IsAndroid)
+        /// </summary>
+        public static readonly bool IsDesktopPlatform = OperatingSystem2.IsWindows || OperatingSystem2.IsMacOS || (OperatingSystem2.IsLinux && !OperatingSystem2.IsAndroid);
+
         static IApplication Instance => DI.Get<IApplication>();
 
         /// <summary>

src/ST.Client/UI/ViewModels/Base/IViewModelBase.cs

@@ -19,11 +19,13 @@ namespace System.Application.UI.ViewModels
         /// <summary>
         /// 是否在设计器的上下文中运行
         /// </summary>
-        public static bool IsInDesignMode { protected get; set; } = true;
+        public static bool IsInDesignMode { protected get; set; }
+            = IApplication.IsDesktopPlatform;
 
         /// <summary>
         /// 是否使用移动端布局
         /// </summary>
         public static bool IsMobileLayout { protected get; set; }
+            = !IApplication.IsDesktopPlatform;
     }
 }

src/ST.Client/UI/ViewModels/Base/IWindowViewModel.cs

@@ -10,6 +10,7 @@ namespace System.Application.UI.ViewModels
         /// <summary>
         /// 是否支持窗口大小与位置
         /// </summary>
-        public static bool IsSupportedSizePosition { protected get; set; } = true;
+        public static bool IsSupportedSizePosition { protected get; set; }
+            = IApplication.IsDesktopPlatform;
     }
 }