/// <summary> /// Generates a Package.proj file for MSBuild to invoke /// - Generates Resource.designer.dll for rewiring resource values from the final Java project /// - Links .NET assemblies and places output into /android/assets/assemblies /// - Extracts assets and resources from Android library projects into /obj/ /// - Copies assets and resources into AAR /// - Invokes aapt to generate R.txt /// - One day I would like to get rid of the temp files, but I could not get the MSBuild APIs to work in-process /// </summary> public static string GeneratePackageProject(List <IKVM.Reflection.Assembly> assemblies, string outputDirectory, string assembliesDirectory) { var mainAssembly = assemblies[0].Location; outputDirectory = Path.GetFullPath(outputDirectory); assembliesDirectory = Path.GetFullPath(assembliesDirectory); var androidDir = Path.Combine(outputDirectory, "android"); var assetsDir = Path.Combine(androidDir, "assets"); var resourceDir = Path.Combine(androidDir, "res"); var manifestPath = Path.Combine(androidDir, "AndroidManifest.xml"); var packageName = Generators.JavaGenerator.GetNativeLibPackageName(mainAssembly); var project = CreateProject(); var target = project.AddTarget("Build"); //Generate Resource.designer.dll var resourceDesigner = new ResourceDesignerGenerator { Assemblies = assemblies, MainAssembly = mainAssembly, OutputDirectory = outputDirectory, PackageName = packageName, }; resourceDesigner.Generate(); if (!resourceDesigner.WriteAssembly()) { //Let's generate CS if this failed string resourcePath = resourceDesigner.WriteSource(); throw new Exception($"Resource.designer.dll compilation failed! See {resourcePath} for details."); } //ResolveAssemblies Task ResolveAssemblies(target, mainAssembly); //LinkAssemblies Task var linkAssemblies = target.AddTask("LinkAssemblies"); linkAssemblies.SetParameter("UseSharedRuntime", "False"); linkAssemblies.SetParameter("LinkMode", LinkMode); linkAssemblies.SetParameter("LinkDescriptions", "@(LinkDescription)"); linkAssemblies.SetParameter("DumpDependencies", "True"); linkAssemblies.SetParameter("ResolvedAssemblies", "@(ResolvedAssemblies);" + Path.Combine(outputDirectory, "Resource.designer.dll")); linkAssemblies.SetParameter("MainAssembly", mainAssembly); linkAssemblies.SetParameter("OutputDirectory", assembliesDirectory); //Aapt Task to generate R.txt var aapt = target.AddTask("Aapt"); aapt.SetParameter("ImportsDirectory", outputDirectory); aapt.SetParameter("OutputImportDirectory", outputDirectory); aapt.SetParameter("ManifestFiles", manifestPath); aapt.SetParameter("ApplicationName", packageName); aapt.SetParameter("JavaPlatformJarPath", Path.Combine(XamarinAndroid.PlatformDirectory, "android.jar")); aapt.SetParameter("JavaDesignerOutputDirectory", outputDirectory); aapt.SetParameter("AssetDirectory", assetsDir); aapt.SetParameter("ResourceDirectory", resourceDir); aapt.SetParameter("ToolPath", AndroidSdk.GetBuildToolsPaths().First()); aapt.SetParameter("ToolExe", "aapt"); aapt.SetParameter("ApiLevel", XamarinAndroid.TargetSdkVersion); aapt.SetParameter("ExtraArgs", "--output-text-symbols " + androidDir); //There is an extra /manifest/AndroidManifest.xml file created var removeDir = target.AddTask("RemoveDir"); removeDir.SetParameter("Directories", Path.Combine(androidDir, "manifest")); //NOTE: might avoid the temp file later var projectFile = Path.Combine(outputDirectory, "Package.proj"); project.Save(projectFile); return(projectFile); }
bool CreateAar() { var executableSuffix = Platform.IsWindows ? ".exe" : string.Empty; var jar = Path.Combine(XamarinAndroid.JavaSdkPath, "bin", "jar" + executableSuffix); var classesDir = Path.Combine(Options.OutputDir, "classes"); var androidDir = Path.Combine(Options.OutputDir, "android"); var name = Path.GetFileNameWithoutExtension(Project.Assemblies[0]).Replace('-', '_'); var args = new List <string> { "cvf", Path.Combine(Options.OutputDir, name + ".aar"), $"-C {androidDir} ." }; //Copy libmonosgen-2.0.so and libmonodroid.so const string libMonoSgen = "libmonosgen-2.0.so"; const string libMonoAndroid = "libmono-android.release.so"; foreach (var abi in Directory.GetDirectories(XamarinAndroid.LibraryPath)) { var abiDir = Path.Combine(androidDir, "jni", Path.GetFileName(abi)); string libMonoSgenSourcePath = Path.Combine(abi, libMonoSgen); string libMonoSgenDestPath = Path.Combine(abiDir, libMonoSgen); string libMonoAndroidSourcePath = Path.Combine(abi, libMonoAndroid); string libMonoAndroidDestPath = Path.Combine(abiDir, "libmonodroid.so"); //NOTE: Xamarin.Android runtime uses different name from APK if (!File.Exists(libMonoSgenSourcePath) || !File.Exists(libMonoAndroidSourcePath)) { continue; } if (!Directory.Exists(abiDir)) { Directory.CreateDirectory(abiDir); } File.Copy(libMonoSgenSourcePath, libMonoSgenDestPath, true); File.Copy(libMonoAndroidSourcePath, libMonoAndroidDestPath, true); } //Copy JNA native libs foreach (var file in Directory.GetFiles(Path.Combine(FindDirectory("external"), "jna"), "android-*")) { using (var stream = File.OpenRead(file)) using (var zip = new ZipArchive(stream)) { foreach (var entry in zip.Entries) { //Skip non-*.so files if (!entry.FullName.EndsWith(".so", StringComparison.Ordinal)) { continue; } var arch = Path.GetFileNameWithoutExtension(file); string abi; switch (arch) { case "android-aarch64": abi = "arm64-v8a"; break; case "android-arm": abi = "armeabi"; break; case "android-armv7": abi = "armeabi-v7a"; break; case "android-x86-64": abi = "x86_64"; break; default: abi = arch.Replace("android-", string.Empty); break; } var abiDir = Path.Combine(androidDir, "jni", Path.GetFileName(abi)); if (!Directory.Exists(abiDir)) { Directory.CreateDirectory(abiDir); } using (var zipEntryStream = entry.Open()) using (var fileStream = File.Create(Path.Combine(abiDir, entry.Name))) { zipEntryStream.CopyTo(fileStream); } } } } //Copy jar to android/classes.jar File.Copy(Path.Combine(Options.OutputDir, name + ".jar"), Path.Combine(androidDir, "classes.jar"), true); //Copy .NET assemblies var assembliesDir = Path.Combine(androidDir, "assets", "assemblies"); if (!Directory.Exists(assembliesDir)) { Directory.CreateDirectory(assembliesDir); } foreach (var assembly in Project.Assemblies) { File.Copy(assembly, Path.Combine(assembliesDir, Path.GetFileName(assembly)), true); } //Copy any referenced assemblies such as mscorlib.dll List <string> referencedAssemblies = new List <string>(); foreach (var assembly in Assemblies) { foreach (var reference in assembly.GetReferencedAssemblies()) { if (!referencedAssemblies.Contains(reference.Name)) { referencedAssemblies.Add(reference.Name); } } } Diagnostics.Message("Linking assemblies..."); //Performs Xamarin.Android build tasks such as Linking, Resource/Asset extraction, invoking aapt. var project = XamarinAndroidBuild.GeneratePackageProject(Assemblies, Options); if (!MSBuild(project)) { return(false); } //Generate Resource.designer.dll var resourceDesigner = new ResourceDesignerGenerator { Assemblies = Assemblies, MainAssembly = Assemblies[0].Location, OutputDirectory = assembliesDir, JavaResourceFile = Path.Combine(androidDir, "R.txt"), }; resourceDesigner.Generate(); if (!resourceDesigner.WriteAssembly()) { //Let's generate CS if this failed string resourcePath = Path.Combine(Options.OutputDir, "Resource.designer.cs"); resourceDesigner.WriteSource(resourcePath); throw new Exception($"Resource.designer.dll compilation failed! See {resourcePath} for details."); } //Runs some final processing on .NET assemblies XamarinAndroidBuild.ProcessAssemblies(Options.OutputDir); var invocation = string.Join(" ", args); var output = Invoke(jar, invocation); return(output.ExitCode == 0); }