working on this for homework of mobile security course.
$mv app-debug.pkg app-debug.zip
use zip to uncompress and get the class.dex file.
$brew install dex2jar
d2j-dex2jar classes.dex to get the jar file.
$d2j-dex2jar classes.dex
dex2jar classes.dex -> ./classes-dex2jar.jar
use jd-gui to get the source code
$ brew install Caskroom/cask/jd-gui
open the app “jd-gui”:
import the file and we get the code now: