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[Hello-NativeAOTFromAndroid] Add NativeAOT+Android sample #1218
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66 changes: 66 additions & 0 deletions
66
build-tools/Java.Interop.BootstrapTasks/Java.Interop.BootstrapTasks/ParseAndroidResources.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,66 @@ | ||
| using Microsoft.Build.Framework; | ||
| using Microsoft.Build.Utilities; | ||
| using System; | ||
| using System.Linq; | ||
| using System.IO; | ||
| using System.Collections.Generic; | ||
|
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|
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| namespace Java.Interop.BootstrapTasks | ||
| { | ||
| public class ParseAndroidResources : Task | ||
| { | ||
| public ITaskItem AndroidResourceFile { get; set; } | ||
| public ITaskItem OutputFile { get; set; } | ||
| public string DeclaringNamespaceName { get; set; } | ||
| public string DeclaringClassName { get; set; } | ||
|
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| public override bool Execute () | ||
| { | ||
| using (var o = File.CreateText (OutputFile.ItemSpec)) { | ||
| o.WriteLine ($"namespace {DeclaringNamespaceName};"); | ||
| o.WriteLine (); | ||
| o.WriteLine ($"partial class {DeclaringClassName} {{"); | ||
| var resources = ParseAndroidResourceFile (AndroidResourceFile.ItemSpec); | ||
| foreach (var declType in resources.Keys.OrderBy (x => x)) { | ||
| o.WriteLine ($"\tpublic static class @{declType} {{"); | ||
| var decls = resources [declType]; | ||
| foreach (var decl in decls.Keys.OrderBy (x => x)) { | ||
| o.WriteLine ($"\t\tpublic const int {decl} = {decls [decl]};"); | ||
| } | ||
| o.WriteLine ("\t}"); | ||
| } | ||
| o.WriteLine ("}"); | ||
| o.WriteLine (); | ||
| } | ||
|
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| return !Log.HasLoggedErrors; | ||
| } | ||
|
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| Dictionary<string, Dictionary<string, string>> ParseAndroidResourceFile (string file) | ||
| { | ||
| var resources = new Dictionary<string, Dictionary<string, string>> (); | ||
| using (var reader = File.OpenText (file)) { | ||
| string line; | ||
| while ((line = reader.ReadLine ()) != null) { | ||
| if (line.StartsWith ("#")) | ||
| continue; | ||
| var items = line.Split (' '); | ||
| if (items.Length != 4) | ||
| continue; | ||
| var type = items [0]; | ||
| if (string.Compare (type, "int", StringComparison.Ordinal) != 0) | ||
| continue; | ||
| var decl = items [1]; | ||
| var name = items [2]; | ||
| var value = items [3]; | ||
| if (!resources.TryGetValue (decl, out var declResources)) | ||
| resources.Add (decl, declResources = new Dictionary<string, string>()); | ||
| declResources.Add (name, value); | ||
| } | ||
| } | ||
|
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| return resources; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| .gradle | ||
| android.xml.fixed |
49 changes: 49 additions & 0 deletions
49
samples/Hello-NativeAOTFromAndroid/Hello-NativeAOTFromAndroid.csproj
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <TargetFramework>$(DotNetTargetFramework)</TargetFramework> | ||
| </PropertyGroup> | ||
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| <Import Project="..\..\TargetFrameworkDependentValues.props" /> | ||
|
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| <PropertyGroup> | ||
| <RootNamespace>Java.Interop.Samples.NativeAotFromAndroid</RootNamespace> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| <Nullable>enable</Nullable> | ||
| <PublishAot>true</PublishAot> | ||
| <PublishAotUsingRuntimePack>true</PublishAotUsingRuntimePack> | ||
| <AllowUnsafeBlocks>true</AllowUnsafeBlocks> | ||
| <NativeLib>Shared</NativeLib> | ||
| <RuntimeIdentifier Condition=" '$(RuntimeIdentifier)' == '' ">linux-bionic-arm64</RuntimeIdentifier> | ||
| <!-- Needed for cross-compilation, e.g. build linux-bionic-arm64 from osx-x64 --> | ||
| <PlatformTarget>AnyCPU</PlatformTarget> | ||
| </PropertyGroup> | ||
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| <ItemGroup> | ||
| <!-- https://github.com/exelix11/SysDVR/blob/master/Client/Client.csproj --> | ||
| <!-- Android needs a proper soname property or it will refuse to load the library --> | ||
| <LinkerArg Include="-Wl,-soname,lib$(AssemblyName)$(NativeBinaryExt)" /> | ||
| <TrimmerRootAssembly Include="Hello-NativeAOTFromAndroid" /> | ||
| </ItemGroup> | ||
|
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| <ItemGroup> | ||
| <ProjectReference Include="..\..\src\Java.Interop\Java.Interop.csproj" /> | ||
| <ProjectReference Include="..\..\src\Java.Runtime.Environment\Java.Runtime.Environment.csproj" /> | ||
| <ProjectReference Include="..\..\src\Java.Base\Java.Base.csproj" /> | ||
| <ProjectReference Include="..\..\src\Java.Interop.Export\Java.Interop.Export.csproj" /> | ||
| <ProjectReference | ||
| Include="..\..\tools\jcw-gen\jcw-gen.csproj" | ||
| ReferenceOutputAssembly="false" | ||
| /> | ||
| <ProjectReference | ||
| Include="..\..\tools\jnimarshalmethod-gen\Xamarin.Android.Tools.JniMarshalMethodGenerator.csproj" | ||
| ReferenceOutputAssembly="false" | ||
| /> | ||
| <ProjectReference | ||
| Include="..\..\tools\generator\generator.csproj" | ||
| ReferenceOutputAssembly="false" | ||
| /> | ||
| </ItemGroup> | ||
|
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| <Import Project="Hello-NativeAOTFromAndroid.targets" /> | ||
| </Project> |
221 changes: 221 additions & 0 deletions
221
samples/Hello-NativeAOTFromAndroid/Hello-NativeAOTFromAndroid.targets
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,221 @@ | ||
| <Project> | ||
|
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| <UsingTask AssemblyFile="$(MSBuildThisFileDirectory)..\..\bin\Build$(Configuration)\Java.Interop.BootstrapTasks.dll" TaskName="Java.Interop.BootstrapTasks.ParseAndroidResources" /> | ||
|
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| <PropertyGroup> | ||
| <GeneratorPath>$(UtilityOutputFullPath)generator.dll</GeneratorPath> | ||
| <_JcwOutputDir>app/src/main/java/my/</_JcwOutputDir> | ||
| <_GradleJniLibsDir>app/src/main/jniLibs/arm64-v8a</_GradleJniLibsDir> | ||
| <AndroidNdkDirectory Condition=" '$(AndroidNdkDirectory)' == '' ">$(ANDROID_NDK_HOME)</AndroidNdkDirectory> | ||
| <AndroidSdkDirectory Condition=" '$(AndroidSdkDirectory)' == '' ">$(ANDROID_HOME)</AndroidSdkDirectory> | ||
| </PropertyGroup> | ||
|
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| <PropertyGroup> | ||
| <_NdkSysrootAbi Condition=" '$(RuntimeIdentifier)' == 'linux-bionic-arm64' ">aarch64-linux-android</_NdkSysrootAbi> | ||
| <_NdkClangPrefix Condition=" '$(RuntimeIdentifier)' == 'linux-bionic-arm64' ">aarch64-linux-android21-</_NdkClangPrefix> | ||
| <_NdkSysrootAbi Condition=" '$(RuntimeIdentifier)' == 'linux-bionic-x64' ">x86_64-linux-android</_NdkSysrootAbi> | ||
| <_NdkClangPrefix Condition=" '$(RuntimeIdentifier)' == 'linux-bionic-x64' ">x86_64-linux-android21-</_NdkClangPrefix> | ||
| <_NdkPrebuiltAbi Condition=" '$(NETCoreSdkRuntimeIdentifier)' == 'osx-x64' ">darwin-x86_64</_NdkPrebuiltAbi> | ||
| <_NdkSysrootLibDir>$(AndroidNdkDirectory)/toolchains/llvm/prebuilt/$(_NdkPrebuiltAbi)/sysroot/usr/lib/$(_NdkSysrootAbi)</_NdkSysrootLibDir> | ||
| <_NdkBinDir>$(AndroidNdkDirectory)/toolchains/llvm/prebuilt/$(_NdkPrebuiltAbi)/bin</_NdkBinDir> | ||
| </PropertyGroup> | ||
|
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| <PropertyGroup Condition="$(RuntimeIdentifier.StartsWith('linux-bionic'))"> | ||
| <CppCompilerAndLinker>$(_NdkBinDir)/$(_NdkClangPrefix)clang</CppCompilerAndLinker> | ||
| <ObjCopyName>$(_NdkBinDir)/llvm-objcopy</ObjCopyName> | ||
| </PropertyGroup> | ||
|
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| <ItemGroup Condition="$(RuntimeIdentifier.StartsWith('linux-bionic'))"> | ||
| <LinkerArg Include="-Wl,--undefined-version" /> | ||
| </ItemGroup> | ||
|
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| <Target Name="_ValidateEnvironment" | ||
| BeforeTargets="Build"> | ||
| <Error | ||
| Condition=" '$(AndroidNdkDirectory)' == '' Or !Exists($(AndroidNdkDirectory)) " | ||
| Text="Set the %24(AndroidNdkDirectory) MSBuild property or the %24ANDROID_NDK_HOME environment variable to the path of the Android NDK." | ||
| /> | ||
| <Error | ||
| Condition=" !Exists($(_NdkSysrootLibDir))" | ||
| Text="NDK 'sysroot' dir `$(_NdkSysrootLibDir)` does not exist. You're on your own." | ||
| /> | ||
| <Error | ||
| Condition=" '$(AndroidSdkDirectory)' == '' Or !Exists($(AndroidSdkDirectory)) " | ||
| Text="Set the %24(AndroidSdkDirectory) MSBuild property or the %24ANDROID_HOME environment variable to the path of the Android SDK." | ||
| /> | ||
| </Target> | ||
|
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| <ItemGroup> | ||
| <_GenerateAndroidBindingInputs Include="$(GeneratorPath)" /> | ||
| <_GenerateAndroidBindingInputs Include="$(MSBuildThisFileFullPath)" /> | ||
| <_GenerateAndroidBindingInputs Include="Transforms\**" /> | ||
| <_GenerateAndroidBindingInputs Include="$(IntermediateOutputPath)mcw\api.xml" /> | ||
| </ItemGroup> | ||
|
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| <Target Name="_GenerateAndroidBinding" | ||
| BeforeTargets="CoreCompile" | ||
| Inputs="@(_GenerateAndroidBindingInputs)" | ||
| Outputs="$(IntermediateOutputPath)mcw\Hello-NativeAOTFromAndroid.projitems"> | ||
| <MakeDir Directories="$(IntermediateOutputPath)mcw" /> | ||
| <PropertyGroup> | ||
| <Generator>"$(GeneratorPath)"</Generator> | ||
| <_GenFlags>--public --global</_GenFlags> | ||
| <_Out>-o "$(IntermediateOutputPath)mcw"</_Out> | ||
| <_Codegen>--codegen-target=JavaInterop1</_Codegen> | ||
| <_Fixup>--fixup=Transforms/Metadata.xml</_Fixup> | ||
| <_Enums1>--preserve-enums --enumflags=Transforms/enumflags --enumfields=Transforms/map.csv --enummethods=Transforms/methodmap.csv</_Enums1> | ||
| <_Enums2>--enummetadata=$(IntermediateOutputPath)mcw/enummetadata</_Enums2> | ||
| <_Assembly>"--assembly=$(AssemblyName)"</_Assembly> | ||
| <_TypeMap>--type-map-report=$(IntermediateOutputPath)mcw/type-mapping.txt</_TypeMap> | ||
| <_Api>android.xml</_Api> | ||
| <_Dirs>--enumdir=$(IntermediateOutputPath)mcw</_Dirs> | ||
| <_FullIntermediateOutputPath>$([System.IO.Path]::GetFullPath('$(IntermediateOutputPath)'))</_FullIntermediateOutputPath> | ||
| <_LangFeatures>--lang-features=nullable-reference-types,default-interface-methods,nested-interface-types,interface-constants</_LangFeatures> | ||
| </PropertyGroup> | ||
| <ItemGroup> | ||
| <_RefAsmDir Include="@(ReferencePathWithRefAssemblies->'%(RootDir)%(Directory).'->Distinct())" /> | ||
| <_Lib Include="@(_RefAsmDir->'-L "%(Identity)"')" /> | ||
| <_JavaBaseRef Include="@(ReferencePathWithRefAssemblies)" | ||
| Condition=" '%(FileName)' == 'Java.Base' " | ||
| /> | ||
| <_Ref Include="@(_JavaBaseRef->'-r "%(FullPath)"')" /> | ||
| </ItemGroup> | ||
| <ItemGroup> | ||
| <!-- I can't find a good way to trim the trailing `\`, so append with `.` so we can sanely quote for $(_Libpath) --> | ||
| </ItemGroup> | ||
| <Exec | ||
| Command="$(DotnetToolPath) $(Generator) $(_GenFlags) $(_ApiLevel) $(_Out) @(_Lib, ' ') @(_Ref, ' ') $(_Codegen) $(_Fixup) $(_Enums1) $(_Enums2) $(_Versions) $(_Annotations) $(_Assembly) $(_TypeMap) $(_LangFeatures) $(_Dirs) $(_Api) $(_WithJavadocXml)" | ||
| IgnoreStandardErrorWarningFormat="True" | ||
| /> | ||
| <ItemGroup> | ||
| <Compile Include="$(_FullIntermediateOutputPath)\mcw\**\*.cs" KeepDuplicates="False" /> | ||
| </ItemGroup> | ||
| <XmlPeek | ||
| Namespaces="<Namespace Prefix='msbuild' Uri='http://schemas.microsoft.com/developer/msbuild/2003' />" | ||
| XmlInputPath="$(IntermediateOutputPath)mcw\Hello-NativeAOTFromAndroid.projitems" | ||
| Query="/msbuild:Project/msbuild:PropertyGroup/msbuild:DefineConstants/text()" > | ||
| <Output TaskParameter="Result" PropertyName="_GeneratedDefineConstants" /> | ||
| </XmlPeek> | ||
| <PropertyGroup> | ||
| <DefineConstants>$(DefineConstants);$([System.String]::Copy('$(_GeneratedDefineConstants)').Replace ('%24(DefineConstants);', ''))</DefineConstants> | ||
| </PropertyGroup> | ||
| </Target> | ||
|
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| <Target Name="_CreateJavaCallableWrappers" | ||
| Condition=" '$(TargetPath)' != '' " | ||
| BeforeTargets="_BuildAppApk" | ||
| Inputs="$(TargetPath)" | ||
| Outputs="$(_JcwOutputDir).stamp"> | ||
| <RemoveDir Directories="$(_JcwOutputDir)" /> | ||
| <MakeDir Directories="$(_JcwOutputDir)" /> | ||
| <ItemGroup> | ||
| <!-- I can't find a good way to trim the trailing `\`, so append with `.` so we can sanely quote for $(_Libpath) --> | ||
| <_JcwGenRefAsmDirs Include="@(ReferencePathWithRefAssemblies->'%(RootDir)%(Directory).'->Distinct())" /> | ||
| </ItemGroup> | ||
| <PropertyGroup> | ||
| <_JcwGen>"$(UtilityOutputFullPath)/jcw-gen.dll"</_JcwGen> | ||
| <_Target>--codegen-target JavaInterop1</_Target> | ||
| <_Output>-o "$(_JcwOutputDir)"</_Output> | ||
| <_Libpath>@(_JcwGenRefAsmDirs->'-L "%(Identity)"', ' ')</_Libpath> | ||
| </PropertyGroup> | ||
| <Exec Command="$(DotnetToolPath) $(_JcwGen) "$(TargetPath)" $(_Target) $(_Output) $(_Libpath)" /> | ||
| <Touch Files="$(_JcwOutputDir).stamp" AlwaysCreate="True" /> | ||
| </Target> | ||
|
|
||
| <Target Name="_AddMarshalMethods" | ||
| Condition=" '$(TargetPath)' != '' " | ||
| Inputs="$(TargetPath)" | ||
| Outputs="$(IntermediateOutputPath).added-marshal-methods" | ||
| AfterTargets="_CreateJavaCallableWrappers"> | ||
| <ItemGroup> | ||
| <!-- I can't find a good way to trim the trailing `\`, so append with `.` so we can sanely quote for $(_Libpath) --> | ||
| <_JnimmRefAsmDirs Include="@(RuntimePackAsset->'%(RootDir)%(Directory).'->Distinct())" /> | ||
| </ItemGroup> | ||
| <PropertyGroup> | ||
| <_JnimarshalmethodGen>"$(UtilityOutputFullPath)/jnimarshalmethod-gen.dll"</_JnimarshalmethodGen> | ||
| <_Verbosity>-v -v --keeptemp</_Verbosity> | ||
| <_Libpath>-L "$(TargetDir)" @(_JnimmRefAsmDirs->'-L "%(Identity)"', ' ')</_Libpath> | ||
| <!-- <_Output>-o "$(IntermediateOutputPath)/jonp"</_Output> --> | ||
| </PropertyGroup> | ||
|
|
||
| <Exec Command="$(DotnetToolPath) $(_JnimarshalmethodGen) "$(TargetPath)" $(_Verbosity) $(_Libpath)" /> | ||
|
|
||
| <!-- the IlcCompile target uses files from `$(IntermediateOutputPath)`, not `$(TargetPath)`, so… update both? --> | ||
| <Copy SourceFiles="$(TargetPath)" DestinationFolder="$(IntermediateOutputPath)" /> | ||
|
|
||
| <Touch Files="$(IntermediateOutputPath).added-marshal-methods" AlwaysCreate="True" /> | ||
| </Target> | ||
|
|
||
| <ItemGroup> | ||
| <_BuildAppApkInput Include="$(MSBuildThisFileFullPath)" /> | ||
| <_BuildAppApkInput Include="app\src\main\java\**\*.java" /> | ||
| <_BuildAppApkInput Include="app\src\main\AndroidManifest.xml" /> | ||
| <_BuildAppApkInput Include="app\**\build.gradle" /> | ||
| <_BuildAppApkInput Include="$(NativeBinary)" /> | ||
| <_BuildAppApkInput Include="$(OutputPath)java-interop.jar" /> | ||
| </ItemGroup> | ||
|
|
||
| <PropertyGroup> | ||
| <_AfterBuildDependsOnTargets> | ||
| _CreateJavaCallableWrappers; | ||
| _AddMarshalMethods; | ||
| </_AfterBuildDependsOnTargets> | ||
| </PropertyGroup> | ||
|
|
||
| <Target Name="_AfterBuild" | ||
| AfterTargets="Build" | ||
| DependsOnTargets="$(_AfterBuildDependsOnTargets)" | ||
| /> | ||
|
|
||
| <PropertyGroup> | ||
| <_GradleRtxtPath>app\build\intermediates\runtime_symbol_list\release\R.txt</_GradleRtxtPath> | ||
| </PropertyGroup> | ||
|
|
||
| <Target Name="_BuildRtxt" | ||
| BeforeTargets="CoreCompile" | ||
| Inputs="@(_BuildAppApkInput)" | ||
| Outputs="$(_GradleRtxtPath);$(IntermediateOutputPath)R.g.cs"> | ||
| <Exec | ||
| Command=""$(GradleWPath)" $(GradleArgs) :app:processReleaseResources" | ||
| EnvironmentVariables="JAVA_HOME=$(JavaSdkDirectory);APP_HOME=$(GradleHome);ANDROID_HOME=$(AndroidSdkDirectory)" | ||
| WorkingDirectory="$(MSBuildThisFileDirectory)" | ||
| /> | ||
| <ParseAndroidResources | ||
| AndroidResourceFile="$(_GradleRtxtPath)" | ||
| OutputFile="$(IntermediateOutputPath)R.g.cs" | ||
| DeclaringNamespaceName="$(RootNamespace)" | ||
| DeclaringClassName="R" | ||
| /> | ||
| <ItemGroup> | ||
| <FileWrites Include="$(IntermediateOutputPath)R.g.cs" /> | ||
| <Compile Include="$(IntermediateOutputPath)R.g.cs" /> | ||
| </ItemGroup> | ||
| </Target> | ||
|
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||
| <Target Name="_BuildAppApk" | ||
| AfterTargets="Publish" | ||
| Inputs="@(_BuildAppApkInput)" | ||
| Outputs="app/build/outputs/apk/release/app-release.apk"> | ||
| <MakeDir Directories="$(_GradleJniLibsDir);app/lib" /> | ||
| <ItemGroup> | ||
| <_GradleBuildSource Include="$(NativeBinary)" /> | ||
| <_GradleBuildTarget Include="$(_GradleJniLibsDir)\lib$(AssemblyName)$(NativeBinaryExt)" /> | ||
|
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||
| <_GradleBuildSource Include="$(OutputPath)java-interop.jar" /> | ||
| <_GradleBuildTarget Include="app\lib\java-interop.jar" /> | ||
| </ItemGroup> | ||
| <Copy | ||
| SourceFiles="@(_GradleBuildSource)" | ||
| DestinationFiles="@(_GradleBuildTarget)" | ||
| /> | ||
| <Exec | ||
| Command=""$(GradleWPath)" $(GradleArgs) assembleRelease > gradle.log" | ||
| EnvironmentVariables="JAVA_HOME=$(JavaSdkDirectory);APP_HOME=$(GradleHome);ANDROID_HOME=$(AndroidSdkDirectory)" | ||
| WorkingDirectory="$(MSBuildThisFileDirectory)" | ||
| /> | ||
| <Copy | ||
| SourceFiles="app/build/outputs/apk/release/app-release.apk" | ||
| DestinationFiles="$(OutputPath)net.dot.jni.helloandroid-Signed.apk" | ||
| /> | ||
| </Target> | ||
| </Project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| using System.Runtime.InteropServices; | ||
|
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| using Java.Interop; | ||
|
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| namespace Java.Interop.Samples.NativeAotFromAndroid; | ||
|
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| static class JavaInteropRuntime | ||
| { | ||
| static JniRuntime? runtime; | ||
|
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| [UnmanagedCallersOnly (EntryPoint="JNI_OnLoad")] | ||
| static int JNI_OnLoad (IntPtr vm, IntPtr reserved) | ||
| { | ||
| try { | ||
| AndroidLog.Print (AndroidLogLevel.Info, "JavaInteropRuntime", "JNI_OnLoad()"); | ||
| LogcatTextWriter.Init (); | ||
| return (int) JniVersion.v1_6; | ||
| } | ||
| catch (Exception e) { | ||
| AndroidLog.Print (AndroidLogLevel.Error, "JavaInteropRuntime", $"JNI_OnLoad() failed: {e}"); | ||
| return 0; | ||
| } | ||
| } | ||
|
|
||
| [UnmanagedCallersOnly (EntryPoint="JNI_OnUnload")] | ||
| static void JNI_OnUnload (IntPtr vm, IntPtr reserved) | ||
| { | ||
| AndroidLog.Print(AndroidLogLevel.Info, "JavaInteropRuntime", "JNI_OnUnload"); | ||
| runtime?.Dispose (); | ||
| } | ||
|
|
||
| // symbol name from `$(IntermediateOutputPath)obj/Release/osx-arm64/h-classes/net_dot_jni_hello_JavaInteropRuntime.h` | ||
| [UnmanagedCallersOnly (EntryPoint="Java_net_dot_jni_nativeaot_JavaInteropRuntime_init")] | ||
| static void init (IntPtr jnienv, IntPtr klass) | ||
| { | ||
| Console.WriteLine ($"C# init()"); | ||
| try { | ||
| var options = new JreRuntimeOptions { | ||
| EnvironmentPointer = jnienv, | ||
| TypeManager = new NativeAotTypeManager (), | ||
| UseMarshalMemberBuilder = false, | ||
| JniGlobalReferenceLogWriter = new LogcatTextWriter (AndroidLogLevel.Debug, "NativeAot:GREF"), | ||
| JniLocalReferenceLogWriter = new LogcatTextWriter (AndroidLogLevel.Debug, "NativeAot:LREF"), | ||
| }; | ||
| runtime = options.CreateJreVM (); | ||
| } | ||
| catch (Exception e) { | ||
| AndroidLog.Print (AndroidLogLevel.Error, "JavaInteropRuntime", $"JavaInteropRuntime.init: error: {e}"); | ||
| } | ||
| } | ||
| } | ||
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if you wanted to remove:
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The C# compiler is able to optimize the former into the latter, meaning there isn't a reason to not use
$"…"strings everywhere. This has the added benefit that you don't need to remember to add$to your strings when you do want to use formatted strings, which is something I occasionally forget…