低版本没Text.Json，直接不支持低版本嘻嘻

Author: StarryXYJ

Avalonia.DynamicLocalization/Avalonia.DynamicLocalization.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>netstandard2.0;net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
+        <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>
         <ImplicitUsings>disable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <RootNamespace>Avalonia.DynamicLocalization</RootNamespace>

Avalonia.DynamicLocalization/Core/ILanguageService.cs

@@ -1,3 +1,5 @@
+using System;
+using System.Collections.Generic;
 using System.ComponentModel;
 using System.Globalization;
 using Avalonia.DynamicLocalization.Providers;

Avalonia.DynamicLocalization/Core/LanguageChangedEventArgs.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Globalization;
 
 namespace Avalonia.DynamicLocalization.Core;

Avalonia.DynamicLocalization/Core/LanguageService.cs

@@ -1,4 +1,7 @@
+using System;
+using System.Collections.Generic;
 using System.Globalization;
+using System.Linq;
 using Avalonia.DynamicLocalization.Providers;
 using CommunityToolkit.Mvvm.ComponentModel;
 

Avalonia.DynamicLocalization/Core/LocalizedString.cs

@@ -1,3 +1,4 @@
+using System;
 using System.ComponentModel;
 using System.Globalization;
 

Avalonia.DynamicLocalization/Extensions/ServiceCollectionExtensions.cs

@@ -1,3 +1,4 @@
+using System;
 using Avalonia.DynamicLocalization.Core;
 using Avalonia.DynamicLocalization.Providers;
 using Microsoft.Extensions.DependencyInjection;

Avalonia.DynamicLocalization/MarkupExtensions/LocalizeExtension.cs

@@ -1,3 +1,4 @@
+using System;
 using Avalonia.Data;
 using Avalonia.Markup.Xaml;
 using Avalonia.DynamicLocalization.Core;

Avalonia.DynamicLocalization/Providers/ILocalizationProvider.cs

@@ -1,4 +1,7 @@
+using System.Collections.Generic;
 using System.Globalization;
+using System.Threading;
+using System.Threading.Tasks;
 
 namespace Avalonia.DynamicLocalization.Providers;
 

Avalonia.DynamicLocalization/Providers/JsonLocalizationProvider.cs

@@ -1,7 +1,13 @@
+using System;
 using System.Collections.Concurrent;
+using System.Collections.Generic;
 using System.Globalization;
+using System.IO;
+using System.Linq;
 using System.Reflection;
 using System.Text.Json;
+using System.Threading;
+using System.Threading.Tasks;
 
 namespace Avalonia.DynamicLocalization.Providers;
 

Avalonia.DynamicLocalization/Providers/ResxLocalizationProvider.cs

@@ -1,5 +1,10 @@
+using System;
+using System.Collections.Generic;
 using System.Globalization;
+using System.Linq;
 using System.Resources;
+using System.Threading;
+using System.Threading.Tasks;
 
 namespace Avalonia.DynamicLocalization.Providers;