We all may be knowing Google uses .apk extension for its android applications. APK extension may seem complicated, but its not the fact. You can simply extract and edit apk files.
Extracting files from application having apk extension:
- First copy the application into your pc or laptop.
- Then just go to rename and change the extension from .apk to .zip
Example: Facebook.apk changes to Facebook.zip - Now just extract it using winrar or winzip.
So now you will have all the files including images of that app.
Now comes the tricky part. There is a file named classes.dex, which contains important data and is encrypted. So it can’t be opened normally. You will need a specific tool for it.
We are going to use the dex2jar opener given below to open that file up.
- Download Dex2Jar from http://code.google.com/p/dex2jar/
- Download Java Decompiler from http://java.decompiler.free.fr/
Now after you have downloaded both above mentioned softwares you just need to copy the classes.dex file to the Dex2Jar extracted folder and run a small command from the commandline : “dex2jar.bat classes.dex”
Now this will create a file with a strange name something like “classes.dex.dex2jar.jar” so now you can open this using the WinRAR if you do not have it you can install it and start modifying your files.
source- Android Guys
