首先下载三个工具 apktool ，dex2jar，jd-gui

下载地址分别如下

apktool ：https://ibotpeaches.github.io/Apktool/install/

dex2jar ：https://sourceforge.net/projects/dex2jar/

jd-gui：http://jd.benow.ca/

如果没法下载的我打包好了，下载地址 但不一定是最新版的,可以正常使用

 

第一步

先用 apktool 解压 .apk文件来查看apk包内的资源文件，直接解压会导致layout等资源文件无法看到

解压命令如下

apktool d aa.apk -o User/Mike/Downloads/1.apk

d是固定参数 aa.apk是你下载的apk文件名

不加 -o 会让你找不到输出的文件路径，不建议这么做

中途可能会遇到apktool 的 /usr/local/bin/apktool: Permission denied 问题

使用

sudo chmod +x /usr/local/bin/apktool

可解决，如非必要可以不加 sudo

apktool不会用的话可以去前面下载地址看教程，我这里就不细说了

第二步

使用 dex2jar 反编译 aa.apk

首先先解压dex2jar.zip，将 aa.apk放到 dex2jar文件夹里(或者直接将路径写进下面命令里去)，然后在命令行下进入到 dex2jar文件夹里

sh d2j-dex2jar.sh  aa.apk 

这一步可能会报 d2j-dex2jar.sh: line 36: ./d2j_invoke.sh: Permission denied 错误

用以下命令来修改为可执行权限

sudo chmod +x d2j_invoke.sh

第三步

使用 jd-gui 来打开生成的.jar文件即可看到jave项目源代码

 

附：

apktool脚本配置方法

Installation for Apktool

• Windows:
  1. Download Windows wrapper script (Right click, Save Link As apktool.bat)
  2. Download apktool-2 (find newest here)
  3. Rename downloaded jar to apktool.jar
  4. Move both files (apktool.jar & apktool.bat) to your Windows directory (Usually C://Windows)
  5. If you do not have access to C://Windows, you may place the two files anywhere then add that directory to your Environment Variables System PATH variable.
  6. Try running apktool via command prompt
• Linux:
  1. Download Linux wrapper script (Right click, Save Link As apktool)
  2. Download apktool-2 (find newest here)
  3. Rename downloaded jar to apktool.jar
  4. Move both files (apktool.jar & apktool) to /usr/local/bin (root needed)
  5. Make sure both files are executable (chmod +x)
  6. Try running apktool via cli
• Mac OS X:
  1. Download Mac wrapper script (Right click, Save Link As apktool)
  2. Download apktool-2 (find newest here)
  3. Rename downloaded jar to apktool.jar
  4. Move both files (apktool.jar & apktool) to /usr/local/bin (root needed)
  5. Make sure both files are executable (chmod +x)
  6. Try running apktool via cli

Note - Wrapper scripts are not needed, but helpful so you don’t have to type java -jar apktool.jar over and over.