注入代码使用记录

参考

1.https://jaeger.itscoder.com/android/2016/09/20/nuva-source-code-analysis.html

2.https://blog.csdn.net/heqiangflytosky/article/details/54017311

 

动态加载内部apk/jar/dex/zip

    private static void addDexFile(String dexFile) {
        ClassLoader classLoader=Object.class.getClassLoader();
        Reflect reflect= Reflect.on(classLoader).field("pathList");
        Object firstArray= reflect.field("dexElements").get();
        PathClassLoader pathClassLoader=new PathClassLoader(dexFile,classLoader);
        Object secondArray= Reflect.on(pathClassLoader).field("pathList").field("dexElements").get();
        Class<?> localClass = firstArray.getClass().getComponentType();
        int firstArrayLength = Array.getLength(firstArray);
        int allLength = firstArrayLength + Array.getLength(secondArray);
        Object mergeElements = Array.newInstance(localClass, allLength);
        for (int k = 0; k < allLength; ++k) {
            if (k < firstArrayLength) {
                Array.set(mergeElements, k, Array.get(firstArray, k));
            } else {
                Array.set(mergeElements, k, Array.get(secondArray, k - firstArrayLength));
            }
        }
        reflect.set("dexElements", mergeElements);
    }

反射工具依赖库导入：

implementation 'org.jooq:joor:0.9.5'

调用方法：

  addDexFile("/system/framework/andhook.lib.jar");

动态加载外部apk/jar/dex/zip