How to obfuscate an Android library (.jar file) using Proguard in Eclipse

Question

I have seen many posts about how to obfuscate an Android application (.apk file) using ProGuard in Eclipse. Also see http://developer.android.com/guide/developing/tools/pro

Answer 1

I use an indirect way to generate a exported android obfuscate jar, my way is:

1. export a signed apk use eclipse

2. unzip the apk, find the classes.dex

3. use dex2jar.bat ,change the classes.dex to a jar

4. unzip the jar and delete the class you do not need,then zip it and change the file name to XXX.jar

5. Then you use this jar in other project,or give it to customer, it is obfuscate!

I am sure this will help you! Enjoy it!