1 Copy the myadroid.apk to the E:\disapk
2 download apktool1.5.2.tar.bz2 and apktool-install-windows-r05-ibot.tar.bz2 and extract to current directory, (https://code.google.com/p/ Android-apktool/downloads/list)
3 decompile myadroid.apk to myadroid, command: Apktool D myadroid.apk myadroid
4 Download Dex2jar-0.0.9.15.zip and extract to current directory, (Https://code.google.com/p/dex2jar/downloads/list)
5 extract myadroid.apk to MyAdroid2, convert classes.dex in MyAdroid2 to Classes_dex2jar.jar, command: Dex2jar./myadroid2/classes.dex
6 download Xjad and extract to current directory, (Http://dx.cr173.com/soft1/XJad.zip)
7 run XJad.exe, select File-, decompile jar file, and decompile Classes_dex2jar.jar to./myadroid2/~classes_dex2jar.jar
8 Copy ~classes_dex2jar.jar to myadroid rename to Src
Apktool+dex2jar+xjad Anti-compilation Android program