Obfuscation in Android Studio

Question

Is there any obfuscation tool to use with Android Studio? IntelliGuard plugin is declared to be supported by the Studio, but it doesn't work actually due to missing AntSupport plugin. I wan't able to find one in the repository. Any ideas?

P.S. Android Studio build process is based on Gradle, so I wouldn't expect to see Ant support there at all. May be I'm wrong.

Answer 1

• Basic Obfuscation

To obfuscate code in Android studio just go to your build.gradle file in your Android Studio project:

Change the minifyEnabled property from false to true

This is a basic Obfuscation.

After generating the apk you can see the obfuscation result by decompiling the apk with any software. This page could help you:

http://www.decompileandroid.com/

In the obfuscation result you will see classes with name: a,b,c....

And the obfuscation variables and methods will have also names like aa,c,ac...

• Normal obfuscation:

To obfuscate the code in a more complex form you could go to your root directory app and create a .pro file. For example in the following picture I have created the file: proguard-rules-new.pro. In the same directory you should see a file called proguard-rules.pro

Now add the file you have created to the build.gradle file

And edit the .pro file you have create with your own custom proguard rules

Answer 2

First enable minifyEnabled in your build.gradle file, like

minifyEnabled true 

After this, add below lines in progurad-rules.txt file

-keep class yourpackage.** { *; } -dontusemixedcaseclassnames -dontskipnonpubliclibraryclasses -verbose 

For checking that its working fine go to:

http://www.javadecompilers.com/apktool website so that you can verify after decompilation.

It will work and your classes will be hidden completely.