base on Dynamic java method hook for Android，Implemented by jvmti # Jtik [中文版本](README_cn.md) ## Introduction Jtik is a runtime dynamic hook framework on the Android platform that operates at the granularity of Java methods.Its implementation is based on [ART TI](https://source.android.google.cn/docs/core/runtime/art-ti) and it is capable of hooking both the application itself and system Java methods. Since it utilizes publicly available system interfaces and does not involve modifications to internal memory structures of the ART virtual machine, such as ArtMethod, it theoretically has strong compatibility. ## Usage ### 1. Add dependency [](https://jitpack.io/#chancerly/jtik) ```gradle repositories { maven { url 'https://jitpack.io' } } ``` ```gradle dependencies { implementation 'com.github.chancerly:jtik:0.0.1-Beta' } ``` ### 2. Initialization ```java //if you want hook framework method,like Activity.onCreate //JtikConfig.needHookSystemClass = true; Jtik.init(context); ``` ### 3. hook target method： for example：as a class `Test` ```java public class Test { public int run(int a， int b){ ... } } ``` hook the method `run` of class `Test`： ```java Jtik.hook(classLoader.loadClass("Test").getDeclaredMethod("run", int.class, int.class), new com.zxc.jtik.MethodHook.Builder().setMethodEnterListener((o, objects) -> { //do something on method enter... }).setMethodExitListener((o, o1) -> { //do something on method exit... return o1; }).setParamModifier(0, (thisObject, inParam) -> { //do something if you want to modify the parameter... return 6;//the parameter value you chage to }).build()); ``` ## Support platforms: Theoretically, Android 8.0+ are fully supported ## Reference 1. [ART TI](https://source.android.google.cn/docs/core/runtime/art-ti) 2. [slicer](https://cs.android.com/android/platform/superproject/main/+/main:tools/dexter/slicer/) 3. [android studio](https://cs.android.com/android-studio/platform/tools/base/+/mirror-goog-studio-main:deploy/agent/native/transform/) 4. [JVMTI Tool Interface](https://docs.oracle.com/javase/7/docs/platform/jvmti/jvmti.html#SpecificationIntro) ", Assign "at most 3 tags" to the expected json: {"id":"7942","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"