Unity Android APP il2cpp 学习

相关设置

AssetsAndroidIl2cppPatchDemoAndroidBuilder.cs

ANDROID_BUILD_TOOLS_VERSION, ANDROID_PLATFORM 可以自己选择对应的版本

sdkmanager.bat platforms;android-23

sdkmanager.bat build-tools;26.0.2 

需要在生成的AndroidManifest.xml 中加入

<uses-sdk android:minSdkVersion="16" android:targetSdkVersion="29"></uses-sdk> 

不然会提示 "此应用专为旧版android打造,因此可能无法正常运行" 

AndroidBuilder.cs

　　检查配置

    public static bool ValidateConfig()
    {
        // e.g. C:/Users/NH55/AppData/Local/Android/Sdk
        string sdkPath = EditorPrefs.GetString("AndroidSdkRoot", "");
        if (string.IsNullOrEmpty(sdkPath))
        {
            Debug.LogError("sdk path is empty! please config via menu path:Edit/Preference->External tools.");
            return false;
        }

        // e.g. D:\Unity\2018.4.6f1\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\OpenJDK\Windows
        string jdkPath = EditorPrefs.GetString("JdkPath", "");
        if (string.IsNullOrEmpty(jdkPath))
        {
            Debug.LogError("jdk path is empty! please config via menu path:Edit/Preference->External tools.");
            return false;
        }

        // D:/android-ndk-r16b
        string ndkPath = EditorPrefs.GetString("AndroidNdkRootR16b", "");
        if (string.IsNullOrEmpty(ndkPath))
        {
            ndkPath = EditorPrefs.GetString("AndroidNdkRoot", "");
            if (string.IsNullOrEmpty(ndkPath))
            {
                Debug.LogError("ndk path is empty! please config via menu path:Edit/Preference->External tools.");
                return false;
            }
        }

        // C:/Users/NH55/AppData/Local/Android/Sdk/build-tools/29.0.2/
        string buildToolPath = sdkPath + "/build-tools/" + ANDROID_BUILD_TOOLS_VERSION + "/";
        if (!Directory.Exists(buildToolPath))
        {
            Debug.LogError("Android Build Tools not found. Try to reconfig version on the top of AndroidBuilder.cs. In Unity2018, it can't be work if less than 26.0.2. current:" + buildToolPath);
            return false;
        }

        // C:/Users/NH55/AppData/Local/Android/Sdk/platforms/android-29/android.jar
        string platformJar = sdkPath + "/platforms/" + ANDROID_PLATFORM + "/android.jar";
        if (!File.Exists(platformJar))
        {
            Debug.LogError("Android Platform not found. Try to reconfig version on the top of AndroidBuilder.cs. current:" + platformJar);
            return false;
        }

        Debug.Log("Build Env is ready!");
        Debug.Log("Build Options:");
        Debug.Log("SDK PATH=" + sdkPath);
        Debug.Log("JDK PATH=" + jdkPath);
        Debug.Log("BUILD TOOLS PATH=" + buildToolPath);
        Debug.Log("ANDROID PLATFORM=" + platformJar);
        return true;
    }

　　1. 导出Gradle项目

    // 导出 Gradle Project
    [MenuItem("AndroidBuilder/Step 1: Export Gradle Project", false, 101)]
    public static bool ExportGradleProject()
    {
        //build settings
        if (!ValidateConfig()) { return false; }

        PlayerSettings.applicationIdentifier = "cn.noodle1983.unitypatchdemo";
        PlayerSettings.companyName = "noodle1983";
        PlayerSettings.productName = "UnityAndroidIl2cppPatchDemo";
        EditorUserBuildSettings.androidBuildSystem = AndroidBuildSystem.Gradle;
        PlayerSettings.SetScriptingBackend(BuildTargetGroup.Android, ScriptingImplementation.IL2CPP);
        PlayerSettings.stripEngineCode = false;
#if UNITY_2018 || UNITY_2019
        //PlayerSettings.Android.targetArchitectures = AndroidArchitecture.ARMv7;
        PlayerSettings.Android.targetArchitectures = AndroidArchitecture.ARMv7 | AndroidArchitecture.X86 | AndroidArchitecture.ARM64;
#endif

        //export project
        string error_msg = string.Empty;
        string[] levels = new string[] { "Assets/AndroidIl2cppPatchDemo/Scene/0.unity" };
        BuildOptions options = BuildOptions.AcceptExternalModificationsToPlayer;       
        if (Directory.Exists(ANDROID_EXPORT_PATH)) { FileUtil.DeleteFileOrDirectory(ANDROID_EXPORT_PATH);}
        Directory.CreateDirectory(ANDROID_EXPORT_PATH);
        try
        {
#if UNITY_2018 || UNITY_2019
            error_msg = BuildPipeline.BuildPlayer(levels, ANDROID_EXPORT_PATH, EditorUserBuildSettings.activeBuildTarget, options).summary.result == UnityEditor.Build.Reporting.BuildResult.Succeeded ? string.Empty : "Failed to export project!";
#else
            error_msg = BuildPipeline.BuildPlayer(levels, ANDROID_EXPORT_PATH, EditorUserBuildSettings.activeBuildTarget, options);
#endif
        }
        catch (Exception e)
        {
            Debug.LogError(e.ToString());
            return false;
        }

        if (!string.IsNullOrEmpty(error_msg))
        {
            Debug.LogError(error_msg);
            return false;
        }

        //copy the prebuild patch to the assets directory instead of downloading.
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main/assets/AllAndroidPatchFiles_Version1.zip
        FileUtil.CopyFileOrDirectory(PROJECT_DIR + "/Assets/AndroidIl2cppPatchDemo/PrebuiltPatches/AllAndroidPatchFiles_Version1.zip", EXPORTED_ASSETS_PATH + "/AllAndroidPatchFiles_Version1.zip");
        FileUtil.CopyFileOrDirectory(PROJECT_DIR + "/Assets/AndroidIl2cppPatchDemo/PrebuiltPatches/AllAndroidPatchFiles_Version2.zip", EXPORTED_ASSETS_PATH + "/AllAndroidPatchFiles_Version2.zip");
        return true;
    }

　　2. 修改 UnityPlayerActivity.java

    // 修改 Gradle Project
    [MenuItem("AndroidBuilder/Step 2: Patch Gradle Project", false, 102)]
    public static bool PatchAndroidProject()
    {
        //1. patch java file
        string[] javaEntranceFiles = Directory.GetFiles(JAVA_SRC_PATH, "UnityPlayerActivity.java", SearchOption.AllDirectories);
        if (javaEntranceFiles.Length != 1)
        {
            Debug.LogError("UnityPlayerActivity.java not found or more than one.");
            return false;
        }
        string javaEntranceFile = javaEntranceFiles[0];
        string allJavaText = File.ReadAllText(javaEntranceFile);
        if (allJavaText.IndexOf("bootstrap") > 0)
        {
            Debug.Log("UnityPlayerActivity.java already patched.");
            return true;
        }
        allJavaText = allJavaText.Replace("import android.view.WindowManager;",
            @"import android.view.WindowManager;
import io.github.noodle1983.Boostrap;");

        allJavaText = allJavaText.Replace("mUnityPlayer = new UnityPlayer(this);",
            @"Boostrap.InitNativeLibBeforeUnityPlay(getApplication().getApplicationContext().getFilesDir().getPath());
        mUnityPlayer = new UnityPlayer(this);");
        File.WriteAllText(javaEntranceFile, allJavaText);
        return true;
    }

　　4. 生成 build_apk.bat

    // 生成 build_apk.bat
    [MenuItem("AndroidBuilder/Step 4: Generate Build Scripts", false, 104)]
    public static bool GenerateBuildScripts()
    {
        string sdkPath = EditorPrefs.GetString("AndroidSdkRoot", "");
        string jdkPath = EditorPrefs.GetString("JdkPath", ""); ;
        if (string.IsNullOrEmpty(sdkPath) || string.IsNullOrEmpty(jdkPath))
        {
            Debug.LogError("sdk/jdk path is empty! please config via menu path:Edit/Preference->External tools.");
            return false;
        }

        StringBuilder allCmd = new StringBuilder();

        // gen R.java
        string buildToolPath = sdkPath + "/build-tools/" + ANDROID_BUILD_TOOLS_VERSION + "/";
        // e.g. C:/Users/NH55/AppData/Local/Android/Sdk/build-tools/29.0.2//aapt.exe
        // aapt = Android Asset Packaging Tool
        string aaptPath = buildToolPath + "/aapt.exe";
        // e.g. C:/Users/NH55/AppData/Local/Android/Sdk/platforms/android-29/android.jar
        string platformJar = sdkPath + "/platforms/" + ANDROID_PLATFORM +  "/android.jar";
        // e.g.
        // package -f -m  
        // -J D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main/gen/ 
        // - M D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main/AndroidManifest.xml
        // - S D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main/res
        // - I C:/Users/NH55/AppData/Local/Android/Sdk/platforms/android-29/android.jar
        string genRJavaCmd = " package -f -m "
            + " -J " + R_JAVA_PATH
            + " -M " + MANIFEST_XML_PATH
            + " -S " + RES_PATH
            + " -I " + platformJar;
        if (!Directory.Exists(R_JAVA_PATH)) { Directory.CreateDirectory(R_JAVA_PATH); }
        allCmd.AppendFormat("call "{0}" {1}

", aaptPath, genRJavaCmd);

        //build java
        // e.g. D:\Unity\2018.4.6f1\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\OpenJDK\Windows/bin/javac.exe
        string javacPath = jdkPath + "/bin/javac.exe";
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/libs/unity-classes.jar
        string[] jarLibFiles = Directory.GetFiles(JAR_LIB_PATH, "*.jar", SearchOption.AllDirectories);
        // e.g.
        // D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo\src\main\java\cn\noodle1983\unitypatchdemo\UnityPlayerActivity.java
        // D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo\src\main\java\io\github\noodle1983\Boostrap.java
        string[] javaSrcFiles = Directory.GetFiles(ANDROID_PROJECT_PATH, "*.java", SearchOption.AllDirectories);
        // e.g.
        // -d D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main/objs/ 
        // -source 1.7 - target 1.7
        // - classpath D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/libs/unity-classes.jar 
        // - sourcepath D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main/java/ 
        // - bootclasspath C:/Users/NH55/AppData/Local/Android/Sdk/platforms/android-29/android.jar D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo\src\main\java\cn\noodle1983\unitypatchdemo\UnityPlayerActivity.java D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo\src\main\java\io\github\noodle1983\Boostrap.java
        string compileParam = "-d " + JAVA_OBJ_PATH
            + " -source 1.7 -target 1.7 "
            + " -classpath " + string.Join(";", jarLibFiles)
            + " -sourcepath " + JAVA_SRC_PATH
            + " -bootclasspath "
            + platformJar + " " + string.Join(" ", javaSrcFiles);
        if (!Directory.Exists(JAVA_OBJ_PATH)) { Directory.CreateDirectory(JAVA_OBJ_PATH); }
        allCmd.AppendFormat("call "{0}" {1}

", javacPath, compileParam);

        //dx
        // e.g. C:/Users/NH55/AppData/Local/Android/Sdk/build-tools/29.0.2//dx.bat
        string dxPath = buildToolPath + "/dx.bat";
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//pkg_raw
        string pkgRawPath = BUILD_SCRIPTS_PATH + "/pkg_raw";
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//pkg_raw/classes.dex
        string dexPath = pkgRawPath + "/classes.dex";
        // e.g. --dex --output=D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//pkg_raw/classes.dex D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main/objs/ D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/libs/unity-classes.jar
        string deParam = " --dex --output=" + dexPath + " " + JAVA_OBJ_PATH + " " + string.Join(" ", jarLibFiles);
        if (!Directory.Exists(pkgRawPath)) { Directory.CreateDirectory(pkgRawPath); }
        allCmd.AppendFormat("call "{0}" {1}

@echo on

", dxPath, deParam);

        //prepare lib
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//pkg_raw/lib
        string outputLibPath = pkgRawPath + "/lib";
        if (Directory.Exists(outputLibPath)) { FileUtil.DeleteFileOrDirectory(outputLibPath); }
        Directory.CreateDirectory(outputLibPath);
        FileUtil.ReplaceDirectory(SO_LIB_PATH + "/armeabi-v7a", outputLibPath + "/armeabi-v7a");
        FileUtil.ReplaceDirectory(SO_LIB_PATH + "/x86", outputLibPath + "/x86");
#if UNITY_2018 || UNITY_2019
        FileUtil.ReplaceDirectory(SO_LIB_PATH + "/arm64-v8a", outputLibPath + "/arm64-v8a");
        FileUtil.DeleteFileOrDirectory(outputLibPath + "/arm64-v8a/Data");
#endif
        FileUtil.DeleteFileOrDirectory(outputLibPath + "/armeabi-v7a/Data");
        FileUtil.DeleteFileOrDirectory(outputLibPath + "/x86/Data");
        var debug_files = Directory.GetFiles(outputLibPath, "*.*", SearchOption.AllDirectories).Where(s => s.EndsWith(".debug") || s.EndsWith(".map") || s.EndsWith(".sym"));
        foreach (string file in debug_files) { File.Delete(file); }

        //build apk
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//bin
        string binPath = BUILD_SCRIPTS_PATH + "/bin";
        if (!Directory.Exists(binPath)) { Directory.CreateDirectory(binPath); }
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//bin/cn.noodle1983.unitypatchdemo..unaligned.apk
        string unaligned_apk_path = binPath + "/" + Application.identifier + "." + ".unaligned.apk";
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main/assets
        string assetsPath = EXPORTED_ASSETS_PATH;
        // e.g.
        // package -f -m 
        // -F D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//bin/cn.noodle1983.unitypatchdemo..unaligned.apk 
        // -M D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main/AndroidManifest.xml 
        // -A D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main/assets 
        // -S D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main/res 
        // -I C:/Users/NH55/AppData/Local/Android/Sdk/platforms/android-29/android.jar D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//pkg_raw
        string buildApkParam = " package -f -m -F " + unaligned_apk_path + " -M " + MANIFEST_XML_PATH + " -A " + assetsPath + " -S " + RES_PATH + " -I " + platformJar
            + " " + pkgRawPath;
        allCmd.AppendFormat("call "{0}" {1}

", aaptPath, buildApkParam);

        //align
        // e.g. C:/Users/NH55/AppData/Local/Android/Sdk/build-tools/29.0.2//zipalign.exe
        string zipalign = buildToolPath + "/zipalign.exe";
        // e.g. cn.noodle1983.unitypatchdemo.apk    
        string alignedApkName = Application.identifier + ".apk";
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//bin/cn.noodle1983.unitypatchdemo.apk
        string alignedApkPath = binPath + "/" + alignedApkName;
        // e.g. -f 4 D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//bin/cn.noodle1983.unitypatchdemo..unaligned.apk D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//bin/cn.noodle1983.unitypatchdemo.apk
        string zipalignParam = " -f 4 " + unaligned_apk_path + " " + alignedApkPath;
        allCmd.AppendFormat("call "{0}" {1}

", zipalign, zipalignParam);

        //sign
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidKeystore
        string keystoreDir = PROJECT_DIR + "/AndroidKeystore";
        if (!Directory.Exists(keystoreDir)) { Directory.CreateDirectory(keystoreDir); }
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidKeystore/test.keystore
        string keystoreFile = keystoreDir + "/test.keystore";
        if (!File.Exists(keystoreFile))
        {
            // e.g. D:\Unity\2018.4.6f1\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\OpenJDK\Windows/bin/keytool.exe
            string keytoolPath = jdkPath + "/bin/keytool.exe";
            // e.g. -genkey -alias test -validity 1000 -keyalg RSA -keystore D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidKeystore/test.keystore -dname "CN = Test, OU = Test, O = Test, L = Test, S = Test, C = Test" -keysize 4096 -storepass testtest -keypass testtest
            string genKeyParam = "-genkey -alias test -validity 1000 -keyalg RSA -keystore " + keystoreFile + " -dname "CN = Test, OU = Test, O = Test, L = Test, S = Test, C = Test" -keysize 4096 -storepass testtest -keypass testtest";
            if (!Exec(keytoolPath, genKeyParam))
            {
                Debug.LogError("exec failed:" + keytoolPath + " " + genKeyParam);
                return false;
            }
        }
        // e.g. C:/Users/NH55/AppData/Local/Android/Sdk/build-tools/29.0.2//apksigner.bat
        string apksignerPath = buildToolPath + "/apksigner.bat";
        // e.g. sign --ks D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidKeystore/test.keystore --ks-pass pass:testtest --key-pass pass:testtest D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//bin/cn.noodle1983.unitypatchdemo.apk
        string signParam = " sign --ks " + keystoreFile + " --ks-pass pass:testtest --key-pass pass:testtest " + alignedApkPath;
        allCmd.AppendFormat("call "{0}" {1}

", apksignerPath, signParam);

        //del tmp apk
        allCmd.AppendFormat("del /f /a /Q {0}

", unaligned_apk_path.Replace("/", "\"));
        allCmd.AppendFormat("explorer.exe {0} 

", binPath.Replace("//", "/").Replace("/", "\"));
        allCmd.AppendFormat("@echo on

"); //explorer as the last line wont return success, so...
        // D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main/build_apk.bat
        File.WriteAllText(BUILD_SCRIPTS_PATH + "/build_apk.bat", allCmd.ToString());

        //bugs for android-23
        //https://issuetracker.unity3d.com/issues/android-build-fails-with-failed-to-repackage-resources-error-when-api-level-23-or-lower-is-used
        string manifestXmlPath = MANIFEST_XML_PATH;
        string content = File.ReadAllText(manifestXmlPath);
        File.WriteAllText(manifestXmlPath, content.Replace(@"|density", ""));
        return true;
    }

　　5. 生成Apk

    // 生成Apk
    [MenuItem("AndroidBuilder/Step 5: Build Apk File", false, 105)]
    public static bool BuildApk()
    {
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//build_apk.bat
        string buildApkPath = BUILD_SCRIPTS_PATH + "/build_apk.bat";
        // e.g. cn.noodle1983.unitypatchdemo.apk
        string alignedApkName = Application.identifier + ".apk";
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.0/UnityAndroidIl2cppPatchDemo/src/main//bin/cn.noodle1983.unitypatchdemo.apk
        string alignedApkPath = BUILD_SCRIPTS_PATH + "/bin/" + alignedApkName;

        if (!Exec(buildApkPath, ""))
        {
            Debug.LogError("exec failed:" + buildApkPath);
            return false;
        }

        if (!File.Exists(alignedApkPath))
        {
            Debug.LogError("apk not found:" + alignedApkPath + ", exec failed:" + buildApkPath);
            return false;
        }
        return true;
    }

　　3. 生成补丁压缩包
　　　　D:ProjectsUnityProjectsUnityAndroidIl2cppPatchDemoAndroidGradleProject_v1.1UnityAndroidIl2cppPatchDemosrcmainzip_patches.bat
　　　　D:ProjectsUnityProjectsUnityAndroidIl2cppPatchDemoAssetsAndroidIl2cppPatchDemoPrebuiltPatchesAllAndroidPatchFiles_Version1.zip 

    [MenuItem("AndroidBuilder/Step 3: Generate Bin Patches", false, 103)]
    public static bool GenerateBinPatches()
    {
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.1/UnityAndroidIl2cppPatchDemo/src/main/assets/bin/Data/
        string assetBinDataPath = EXPORTED_ASSETS_PATH + "/bin/Data/";
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AllAndroidPatchFiles/
        string patchTopPath = PROJECT_DIR + "/AllAndroidPatchFiles/";
        // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AllAndroidPatchFiles//assets_bin_Data/
        string assertBinDataPatchPath = patchTopPath + "/assets_bin_Data/";
     
        if (Directory.Exists(patchTopPath)) { FileUtil.DeleteFileOrDirectory(patchTopPath); }
        Directory.CreateDirectory(assertBinDataPatchPath);

        string[][] soPatchFile =
        {
                // path_in_android_project, filename inside zip, zip file anme
                new string[3]{ "/"+ SO_DIR_NAME + "/armeabi-v7a/libil2cpp.so", "libil2cpp.so.new", "lib_armeabi-v7a_libil2cpp.so.zip" },
//                new string[3]{ "/"+ SO_DIR_NAME + "/x86/libil2cpp.so", "libil2cpp.so.new", "lib_x86_libil2cpp.so.zip" },
//#if UNITY_2018 || UNITY_2019              
//                new string[3]{ "/"+ SO_DIR_NAME + "/arm64-v8a/libil2cpp.so", "libil2cpp.so.new", "lib_arm64-v8a_libil2cpp.so.zip" },
//#endif
        };

        for (int i = 0; i < soPatchFile.Length; i++)
        {
            string[] specialPaths = soPatchFile[i];
            // e.g. /jniLibs/armeabi-v7a/libil2cpp.so
            string projectRelativePath = specialPaths[0];
            // e.g. libil2cpp.so.new
            string pathInZipFile = specialPaths[1];
            // e.g. lib_armeabi-v7a_libil2cpp.so.zip
            string zipFileName = specialPaths[2];

            // e.g. D:/Projects/UnityProjects/UnityAndroidIl2cppPatchDemo//AndroidGradleProject_v1.1/UnityAndroidIl2cppPatchDemo/src/main//jniLibs/armeabi-v7a/libil2cpp.so
            string projectFullPath = BUILD_SCRIPTS_PATH + projectRelativePath;
            // 将补丁版的 libil2cpp.so 重命名 libil2cpp.so.new 并打包到 为 lib_armeabi-v7a_libil2cpp.so.zip
            ZipHelper.ZipFile(projectFullPath, pathInZipFile, patchTopPath + zipFileName, 9);
        }

        // e.g. 将补丁版的 src/main/assets/bin/Data/ 里的文件 拷贝到 assets_bin_Data 并增加.bin后缀, 文件夹以"_"连接
        string[] allAssetsBinDataFiles = Directory.GetFiles(assetBinDataPath, "*", SearchOption.AllDirectories);
        StringBuilder allZipCmds = new StringBuilder();
        allZipCmds.AppendFormat("if not exist "{0}" (MD "{0}") 
", PROJECT_DIR + "/AllAndroidPatchFiles/");
        allZipCmds.AppendFormat("if not exist "{0}" (MD "{0}") 
", PROJECT_DIR + "/AllAndroidPatchFiles/assets_bin_Data/");
        foreach (string apk_file in allAssetsBinDataFiles)
        {
            string relativePathHeader = "assets/bin/Data/";
            int relativePathStart = apk_file.IndexOf(relativePathHeader);
            string filenameInZip = apk_file.Substring(relativePathStart);                                                //file: assets/bin/Data/xxx/xxx
            string relativePath = apk_file.Substring(relativePathStart + relativePathHeader.Length).Replace('\', '/'); //file: xxx/xxx
            string zipFileName = relativePath.Replace("/", "__").Replace("\", "__") + ".bin";                                     //file: xxx__xxx.bin

            allZipCmds.AppendFormat("cd {0} && {1} -8 "{2}" "{3}"
", BUILD_SCRIPTS_PATH, ZIP_PATH, PROJECT_DIR + "/AllAndroidPatchFiles/assets_bin_Data/" + zipFileName, filenameInZip);
        }
        allZipCmds.Append("sleep 1
");
        allZipCmds.AppendFormat("cd {0} && {1} -9 -r "{2}" "{3}"
", patchTopPath, ZIP_PATH, PROJECT_DIR + "/AllAndroidPatchFiles_Versionx.zip", "*");

        if (allZipCmds.Length > 0)
        {
            // 运行批处理
            string zipPatchesFile = BUILD_SCRIPTS_PATH + "/" + "zip_patches.bat";
            File.WriteAllText(zipPatchesFile, allZipCmds.ToString());
            if (!Exec(zipPatchesFile, zipPatchesFile))
            {
                Debug.LogError("exec failed:" + zipPatchesFile);
                return false;
            }
        }
        return true;
    }

UnityPlayerActivity.java 

package cn.noodle1983.unitypatchdemo;

import com.unity3d.player.*;
import android.app.Activity;
import android.content.Intent;
import android.content.res.Configuration;
import android.graphics.PixelFormat;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;

public class UnityPlayerActivity extends Activity
{
    protected UnityPlayer mUnityPlayer; // don't change the name of this variable; referenced from native code

    // Override this in your custom UnityPlayerActivity to tweak the command line arguments passed to the Unity Android Player
    // The command line arguments are passed as a string, separated by spaces
    // UnityPlayerActivity calls this from 'onCreate'
    // Supported: -force-gles20, -force-gles30, -force-gles31, -force-gles31aep, -force-gles32, -force-gles, -force-vulkan
    // See https://docs.unity3d.com/Manual/CommandLineArguments.html
    // @param cmdLine the current command line arguments, may be null
    // @return the modified command line string or null
    protected String updateUnityCommandLineArguments(String cmdLine)
    {
        return cmdLine;
    }

    // Setup activity layout
    @Override protected void onCreate(Bundle savedInstanceState)
    {
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        super.onCreate(savedInstanceState);

        String cmdLine = updateUnityCommandLineArguments(getIntent().getStringExtra("unity"));
        getIntent().putExtra("unity", cmdLine);

        mUnityPlayer = new UnityPlayer(this);
        setContentView(mUnityPlayer);
        mUnityPlayer.requestFocus();
    }

    @Override protected void onNewIntent(Intent intent)
    {
        // To support deep linking, we need to make sure that the client can get access to
        // the last sent intent. The clients access this through a JNI api that allows them
        // to get the intent set on launch. To update that after launch we have to manually
        // replace the intent with the one caught here.
        setIntent(intent);
    }

    // Quit Unity
    @Override protected void onDestroy ()
    {
        mUnityPlayer.destroy();
        super.onDestroy();
    }

    // Pause Unity
    @Override protected void onPause()
    {
        super.onPause();
        mUnityPlayer.pause();
    }

    // Resume Unity
    @Override protected void onResume()
    {
        super.onResume();
        mUnityPlayer.resume();
    }

    @Override protected void onStart()
    {
        super.onStart();
        mUnityPlayer.start();
    }

    @Override protected void onStop()
    {
        super.onStop();
        mUnityPlayer.stop();
    }

    // Low Memory Unity
    @Override public void onLowMemory()
    {
        super.onLowMemory();
        mUnityPlayer.lowMemory();
    }

    // Trim Memory Unity
    @Override public void onTrimMemory(int level)
    {
        super.onTrimMemory(level);
        if (level == TRIM_MEMORY_RUNNING_CRITICAL)
        {
            mUnityPlayer.lowMemory();
        }
    }

    // This ensures the layout will be correct.
    @Override public void onConfigurationChanged(Configuration newConfig)
    {
        super.onConfigurationChanged(newConfig);
        mUnityPlayer.configurationChanged(newConfig);
    }

    // Notify Unity of the focus change.
    @Override public void onWindowFocusChanged(boolean hasFocus)
    {
        super.onWindowFocusChanged(hasFocus);
        mUnityPlayer.windowFocusChanged(hasFocus);
    }

    // For some reason the multiple keyevent type is not supported by the ndk.
    // Force event injection by overriding dispatchKeyEvent().
    @Override public boolean dispatchKeyEvent(KeyEvent event)
    {
        if (event.getAction() == KeyEvent.ACTION_MULTIPLE)
            return mUnityPlayer.injectEvent(event);
        return super.dispatchKeyEvent(event);
    }

    // Pass any events not handled by (unfocused) views straight to UnityPlayer
    @Override public boolean onKeyUp(int keyCode, KeyEvent event)     { return mUnityPlayer.injectEvent(event); }
    @Override public boolean onKeyDown(int keyCode, KeyEvent event)   { return mUnityPlayer.injectEvent(event); }
    @Override public boolean onTouchEvent(MotionEvent event)          { return mUnityPlayer.injectEvent(event); }
    /*API12*/ public boolean onGenericMotionEvent(MotionEvent event)  { return mUnityPlayer.injectEvent(event); }
}

SampleScene测试Gradle文件结构 

libs
　　unity-classes.jar
src
　　main
　　　　assets
　　　　　　bin
　　　　　　　　Data
　　　　　　　　　　Managed
　　　　　　　　　　　　etc
　　　　　　　　　　　　　　mono
　　　　　　　　　　　　　　　　2.0
　　　　　　　　　　　　　　　　　　Browsers
　　　　　　　　　　　　　　　　　　　　Compat.browser
　　　　　　　　　　　　　　　　　　DefaultWsdlHelpGenerator.aspx
　　　　　　　　　　　　　　　　　　machine.config
　　　　　　　　　　　　　　　　　　settings.map
　　　　　　　　　　　　　　　　　　web.config
　　　　　　　　　　　　　　　　4.0
　　　　　　　　　　　　　　　　　　Browsers
　　　　　　　　　　　　　　　　　　　　Compat.browser
　　　　　　　　　　　　　　　　　　DefaultWsdlHelpGenerator.aspx
　　　　　　　　　　　　　　　　　　machine.config
　　　　　　　　　　　　　　　　　　settings.map
　　　　　　　　　　　　　　　　　　web.config
　　　　　　　　　　　　　　　　4.5
　　　　　　　　　　　　　　　　　　Browsers
　　　　　　　　　　　　　　　　　　　　Compat.browser
　　　　　　　　　　　　　　　　　　DefaultWsdlHelpGenerator.aspx
　　　　　　　　　　　　　　　　　　machine.config
　　　　　　　　　　　　　　　　　　settings.map
　　　　　　　　　　　　　　　　　　web.config
　　　　　　　　　　　　　　　　mconfig
　　　　　　　　　　　　　　　　　　config.xml
　　　　　　　　　　　　　　　　browscap.ini
　　　　　　　　　　　　　　　　config
　　　　　　　　　　　　Metadata
　　　　　　　　　　　　　　global-metadata.dat
　　　　　　　　　　　　Resources
　　　　　　　　　　　　　　mscorlib.dll-resources.dat
　　　　　　　　　　Resources
　　　　　　　　　　　　unity_builtin_extra
　　　　　　　　　　boot.config
　　　　　　　　　　globalgamemanagers
　　　　　　　　　　globalgamemanagers.assets
　　　　　　　　　　level0
　　　　　　　　　　sharedassets0.assets
　　　　　　　　　　unity default resources
　　　　java
　　　　　　com
　　　　　　　　voidgame
　　　　　　　　　　TestForIL2CPP
　　　　　　　　　　　　UnityPlayerActivity.java
　　　　jniLibs
　　　　　　armeabi-v7a
　　　　　　　　libil2cpp.so
　　　　　　　　libmain.so
　　　　　　　　libunity.so
　　　　res
　　　　　　drawable-xhdpi
　　　　　　　　app_banner.png
　　　　　　mipmap-anydpi-v26
　　　　　　　　app_icon.xml
　　　　　　　　app_icon_round.xml
　　　　　　mipmap-mdpi
　　　　　　　　app_icon.png
　　　　　　　　ic_launcher_background.png
　　　　　　　　ic_launcher_foreground.png
　　　　　　values
　　　　　　　　strings.xml
　　　　　　　　styles.xml
　　　　　　values-v21
　　　　　　　　styles.xml
AndroidManifest.xml

SampleScene测试IL2CPP包文件结构

assets
　　bin
　　　　Data
　　　　　　Managed
　　　　　　　　etc
　　　　　　　　　　mono
　　　　　　　　　　　　2.0
　　　　　　　　　　　　　　Browsers
　　　　　　　　　　　　　　　　Compat.browser
　　　　　　　　　　　　　    DefaultWsdlHelpGenerator.aspx
　　　　　　　　　　　　　　machine.config
　　　　　　　　　　　　　　settings.map
　　　　　　　　　　　　　　web.config
　　　　　　　　　　　　4.0
　　　　　　　　　　　　　　Browsers
　　　　　　　　　　　　　　　　Compat.browser
　　　　　　　　　　　　　　DefaultWsdlHelpGenerator.aspx
　　　　　　　　　　　　　　machine.config
　　　　　　　　　　　　　　settings.map
　　　　　　　　　　　　　　web.config
　　　　　　　　　　　　4.5
　　　　　　　　　　　　　　Browsers
　　　　　　　　　　　　　　　　Compat.browser
　　　　　　　　　　　　　　DefaultWsdlHelpGenerator.aspx
　　　　　　　　　　　　　　machine.config
　　　　　　　　　　　　　　settings.map
　　　　　　　　　　　　　　web.config
　　　　　　　　　　mconfig
　　　　　　　　　　　　config.xml
　　　　　　　　　　browscap.ini
　　　　　　　　Metadata
　　　　　　　　　　global-metadata.dat
　　　　　　　　Resources
　　　　　　　　　　mscorlib.dll-resources.dat
　　　　　　Resources
　　　　　　　　unity_builtin_extra
　　　　　　boot.config
　　　　　　globalgamemanagers
　　　　　　globalgamemanagers.assets
　　　　　　level0
　　　　　　sharedassets0.assets
　　　　　　unity default resources
lib
　　armeabi-v7a
　　　　libil2cpp.so
　　　　libmain.so
　　　　libunity.so
META-INF
　　CERT.RSA
　　CERT.SF
　　MANIFEST.MF
res
　　drawable-xhdpi-v4
　　　　app_banner.png
　　mipmap-anydpi-v26
　　　　app_icon.xml
　　　　app_icon_round.xml
　　mipmap-mdpi-v4
　　　　app_icon.png
　　　　ic_launcher_background.png
　　　　ic_launcher_foreground.png
AndroidManifest.xml
classes.dex
resources.arsc

流程图 

 

参考

Git地址:　　　　https://github.com/noodle1983/UnityAndroidIl2cppPatchDemo/

libboostrap:　　https://github.com/noodle1983/UnityAndroidIl2cppPatchDemo-libboostrap 

https://docs.unity3d.com/Manual/CommandLineArguments.html

unity_metadata_loader　　https://github.com/nevermoe/unity_metadata_loader