Upgrade to .net 6.0

src/SMAPI.sln

@@ -110,7 +110,7 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SMAPI.Tests.ModApiProvider"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SMAPI.Tests.ModApiConsumer", "SMAPI.Tests.ModApiConsumer\SMAPI.Tests.ModApiConsumer.csproj", "{2A4DF030-E8B1-4BBD-AA93-D4DE68CB9D85}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SMAPI", "SMAPI\SMAPI.csproj", "{EBD13EAB-E70B-4D9F-92C2-C34A21E1FA32}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "SMAPI", "SMAPI\SMAPI.csproj", "{EBD13EAB-E70B-4D9F-92C2-C34A21E1FA32}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -212,5 +212,7 @@ Global
 		SMAPI.Internal.Patching\SMAPI.Internal.Patching.projitems*{6c16e948-3e5c-47a7-bf4b-07a7469a87a5}*SharedItemsImports = 13
 		SMAPI.Internal\SMAPI.Internal.projitems*{85208f8d-6fd1-4531-be05-7142490f59fe}*SharedItemsImports = 13
 		SMAPI.Internal\SMAPI.Internal.projitems*{cd53ad6f-97f4-4872-a212-50c2a0fd3601}*SharedItemsImports = 5
+		SMAPI.Internal.Patching\SMAPI.Internal.Patching.projitems*{ebd13eab-e70b-4d9f-92c2-c34a21e1fa32}*SharedItemsImports = 5
+		SMAPI.Internal\SMAPI.Internal.projitems*{ebd13eab-e70b-4d9f-92c2-c34a21e1fa32}*SharedItemsImports = 5
 	EndGlobalSection
 EndGlobal

src/SMAPI/Events/AssetsInvalidatedEventArgs.cs

@@ -11,18 +11,10 @@ namespace StardewModdingAPI.Events
         ** Accessors
         *********/
         /// <summary>The asset names that were invalidated.</summary>
-#if SMAPI_FOR_MOBILE
-        public IReadOnlyCollection<IAssetName> Names { get; }
-#else
         public IReadOnlySet<IAssetName> Names { get; }
-#endif
         /// <summary>The <see cref="Names"/> with any locale codes stripped.</summary>
         /// <remarks>For example, if <see cref="Names"/> contains a locale like <c>Data/Bundles.fr-FR</c>, this will have the name without locale like <c>Data/Bundles</c>. If the name has no locale, this field is equivalent.</remarks>
-#if SMAPI_FOR_MOBILE
-        public IReadOnlyCollection<IAssetName> NamesWithoutLocale { get; }
-#else
         public IReadOnlySet<IAssetName> NamesWithoutLocale { get; }
-#endif
 
 
         /*********

src/SMAPI/Framework/StateTracking/Snapshots/LocationSnapshot.cs

@@ -4,6 +4,7 @@ using StardewValley;
 using StardewValley.Buildings;
 using StardewValley.Objects;
 using StardewValley.TerrainFeatures;
+using Object = StardewValley.Object;
 
 namespace StardewModdingAPI.Framework.StateTracking.Snapshots
 {

src/SMAPI/Mobile/IsExternalInit.cs

@@ -1,7 +0,0 @@
-using System.ComponentModel;
-
-namespace System.Runtime.CompilerServices
-{
-    [EditorBrowsable(EditorBrowsableState.Never)]
-    internal class IsExternalInit{}
-}

src/SMAPI/Mobile/MobileMemoryExtension.cs

@@ -1,23 +0,0 @@
-namespace System;
-using Internal.Runtime.CompilerServices;
-using System.Collections.Generic;
-using System.Globalization;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-using System.Text;
-
-public static class MobileMemoryExtension
-{
-
-    /// <summary>Indicates whether a specified value is found in a read-only span. Values are compared using IEquatable{T}.Equals(T).</summary>
-    /// <param name="span">The span to search.</param>
-    /// <param name="value">The value to search for.</param>
-    /// <typeparam name="T">The type of the span.</typeparam>
-    /// <returns>
-    /// <see langword="true" /> if found, <see langword="false" /> otherwise.</returns>
-    [MethodImpl(MethodImplOptions.AggressiveInlining)]
-    public static bool Contains<T>(this ReadOnlySpan<T> span, T value) where T : IEquatable<T>
-    {
-        return span.IndexOf(value) >= 0;
-    }
-}

src/SMAPI/Mobile/MobileTypeExtension.cs

@@ -1,34 +0,0 @@
-namespace System;
-
-using System.Collections;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Diagnostics.CodeAnalysis;
-using System.Globalization;
-using System.Reflection;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-using System.Threading;
-
-public static class MobileTypeExtension
-{
-
-    /// <summary>Determines whether the current type can be assigned to a variable of the specified <paramref name="targetType" />.</summary>
-    /// <param name="targetType">The type to compare with the current type.</param>
-    /// <returns>
-    ///         <see langword="true" /> if any of the following conditions is true:
-    ///
-    /// -   The current instance and <paramref name="targetType" /> represent the same type.
-    ///
-    /// -   The current type is derived either directly or indirectly from <paramref name="targetType" />. The current type is derived directly from <paramref name="targetType" /> if it inherits from <paramref name="targetType" />; the current type is derived indirectly from <paramref name="targetType" /> if it inherits from a succession of one or more classes that inherit from <paramref name="targetType" />.
-    ///
-    /// -   <paramref name="targetType" /> is an interface that the current type implements.
-    ///
-    /// -   The current type is a generic type parameter, and <paramref name="targetType" /> represents one of the constraints of the current type.
-    ///
-    /// -   The current type represents a value type, and <paramref name="targetType" /> represents <c>Nullable&lt;c&gt;</c> (<c>Nullable(Of c)</c> in Visual Basic).
-    ///
-    ///  <see langword="false" /> if none of these conditions are true, or if <paramref name="targetType" /> or <see langword="this" /> is <see langword="null" />.</returns>
-    public static bool IsAssignableTo(this Type type, [NotNullWhen(true)] Type? targetType) => (object) targetType != null && targetType.IsAssignableFrom(type);
-
-}

src/SMAPI/Patches/MusicBankPatch.cs

@@ -8,6 +8,7 @@ using HarmonyLib;
 using StardewModdingAPI.Framework;
 using StardewModdingAPI.Internal.Patching;
 using StardewValley;
+using Monitor = StardewModdingAPI.Framework.Monitor;
 
 namespace StardewModdingAPI.Patches
 {

src/SMAPI/Patches/OnAppPausePatch.cs

@@ -6,6 +6,7 @@ using HarmonyLib;
 using StardewModdingAPI.Framework;
 using StardewModdingAPI.Internal.Patching;
 using StardewValley;
+using Monitor = StardewModdingAPI.Framework.Monitor;
 
 namespace StardewModdingAPI.Patches
 {

src/SMAPI/Patches/SaveBackupPatch.cs

@@ -7,6 +7,7 @@ using StardewModdingAPI.Framework;
 using StardewModdingAPI.Framework.Events;
 using StardewModdingAPI.Internal.Patching;
 using StardewValley;
+using Monitor = StardewModdingAPI.Framework.Monitor;
 
 namespace StardewModdingAPI.Patches
 {

src/SMAPI/Patches/SaveGamePatch.cs

@@ -11,6 +11,7 @@ using StardewModdingAPI.Framework;
 using StardewModdingAPI.Internal.Patching;
 using StardewValley;
 using StardewValley.Menus;
+using Monitor = StardewModdingAPI.Framework.Monitor;
 
 namespace StardewModdingAPI.Patches
 {

src/SMAPI/SMAPI.csproj

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\..\build\define-constant.targets" />
   <PropertyGroup Condition="'$(BUILD_FOR_MOBILE)' != ''">
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -18,8 +18,10 @@
     <AndroidResgenFile>Resources\Resource.designer.cs</AndroidResgenFile>
     <GenerateSerializationAssemblies>Off</GenerateSerializationAssemblies>
     <AndroidUseLatestPlatformSdk>false</AndroidUseLatestPlatformSdk>
-    <TargetFrameworkVersion>v12.0</TargetFrameworkVersion>
-    <TargetFramework>net5.0-android</TargetFramework>
+    <SupportedOSPlatformVersion>23</SupportedOSPlatformVersion>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <TargetFramework>net6.0-android</TargetFramework>
+    <TargetFrameworkVersion>12.0</TargetFrameworkVersion>
     <AndroidUseAapt2>true</AndroidUseAapt2>
     <DefineConstants>$(DefineConstants)</DefineConstants>
   </PropertyGroup>
@@ -133,16 +135,16 @@
       <HintPath>..\..\..\Downloads\StardewValleyAndroidStuff\base_1.5.6.31\assemblies\MonoGame.Framework.dll</HintPath>
     </Reference>
 
-    <Reference Include="mscorlib" />
-    <Reference Include="Mono.Android" />
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Xml.Linq" />
+<!--    <Reference Include="mscorlib" />-->
+<!--    <Reference Include="Mono.Android" />-->
+<!--    <Reference Include="System" />-->
+<!--    <Reference Include="System.Core" />-->
     <Reference Include="System.Xml" />
+    <Reference Include="System.Xml.Linq" />
     <Reference Include="0Harmony">
       <HintPath>..\..\build\0Harmony.dll</HintPath>
     </Reference>
-    <Reference Include="Microsoft.CSharp" />
+<!--    <Reference Include="Microsoft.CSharp" />-->
     <Reference Include="SMAPI.Toolkit">
       <HintPath>..\SMAPI.Toolkit\bin\Debug\netstandard2.0\SMAPI.Toolkit.dll</HintPath>
     </Reference>
@@ -155,12 +157,12 @@
     <PackageReference Include="SkiaSharp">
       <Version>2.88.3</Version>
     </PackageReference>
-    <PackageReference Include="Xamarin.Android.Support.Compat">
-      <Version>28.0.0.3</Version>
-    </PackageReference>
-    <PackageReference Include="Xamarin.Android.Support.DocumentFile">
-      <Version>28.0.0.3</Version>
-    </PackageReference>
+<!--    <PackageReference Include="Xamarin.Android.Support.Compat">-->
+<!--      <Version>28.0.0.3</Version>-->
+<!--    </PackageReference>-->
+<!--    <PackageReference Include="Xamarin.Android.Support.DocumentFile">-->
+<!--      <Version>28.0.0.3</Version>-->
+<!--    </PackageReference>-->
     <PackageReference Include="Mono.Cecil" Version="0.11.4" />
     <PackageReference Include="MonoMod.Common" Version="22.3.5.1" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
@@ -176,9 +178,6 @@
     <!-- legacy package; remove in SMAPI 4.0.0 -->
     <PackageReference Include="System.Runtime.Caching" Version="5.0.0" />
   </ItemGroup>
-  <ItemGroup Condition="'$(BUILD_FOR_MOBILE)' != ''">
-    <Compile Include="**\*.cs" Exclude="**/.vshistory/**;obj/**" />
-  </ItemGroup>
 
   <ItemGroup Condition="'$(BUILD_FOR_MOBILE)' != ''">
     <None Include="i18n\*.json" />
@@ -195,7 +194,10 @@
     <PackageReference Include="System.Collections.Immutable" Version="5.0.0" />
   </ItemGroup>
 
-  <Import Project="$(MSBuildExtensionsPath)\Xamarin\Android\Xamarin.Android.CSharp.targets" Condition="'$(BUILD_FOR_MOBILE)' != ''" />
+  <ItemGroup>
+    <Folder Include="Mobile" />
+  </ItemGroup>
+
   <Import Project="..\SMAPI.Internal\SMAPI.Internal.projitems" Label="Shared" />
   <Import Project="..\SMAPI.Internal.Patching\SMAPI.Internal.Patching.projitems" Label="Shared" />
 </Project>

src/SMAPI/SMainActivity.cs

@@ -4,8 +4,6 @@ using Android.Content.PM;
 using Android.OS;
 using Android.Provider;
 using Android.Runtime;
-using Android.Support.V4.App;
-using Android.Support.V4.Content;
 using Android.Views;
 using System;
 using System.Collections.Generic;
@@ -68,10 +66,10 @@ namespace StardewModdingAPI
                 List<string> list = new List<string>();
                 for (int i = 0; i < this.requiredPermissions.Length; i++)
                 {
-                    if (ContextCompat.CheckSelfPermission(this, this.requiredPermissions[i]) != 0)
-                    {
-                        list.Add(this.requiredPermissions[i]);
-                    }
+                    // if (ContextCompat.CheckSelfPermission(this, this.requiredPermissions[i]) != 0)
+                    // {
+                    //     list.Add(this.requiredPermissions[i]);
+                    // }
                 }
 
                 return list.ToArray();
@@ -187,7 +185,7 @@ namespace StardewModdingAPI
 
         public new void PromptForPermissions()
         {
-            ActivityCompat.RequestPermissions(this, this.DeniedPermissionsArray, 0);
+            // ActivityCompat.RequestPermissions(this, this.DeniedPermissionsArray, 0);
         }
 
         public override void OnRequestPermissionsResult(int requestCode, string[] permissions, Permission[] grantResults)