library目录下有反调试，防so注入等代码，修改jni代码后，运行rebuild project即可重新生成so

inject目录下有so注入例子

Inject说明

1. 真机先进行root

2. android6.0/7.0禁掉Selinux

    adb shell setenforce 0
   

3. local.properties配置好NDK目录

4. cd 进入 inject目录，执行 ndk-build 命令

5. 将so和可执行文件inject导入真机，执行 inject

    adb root
    adb remount
    adb push libs/armeabi-v7a/libqever.so /data/local/tmp
    adb push libs/armeabi-v7a/inject /data/local/tmp
    adb shell
    cd /data/local/tmp
    ./inject ... ... ...
   

Thanks

https://github.com/fourbrother/android_anti_debug

https://bbs.pediy.com/thread-194080.htm