Proguard and Android - no size reduction seen

Question

I have a library project which refers two other library projects (Google Play Services and Appcompat). The referencing project has no code just resources. All the code is in this library project. I added proguard configuration for my library project hoping to reduce the size of my binary. It compiles and generates the signed apk fine using ant build. But I see no reduction in binary size. Its exactly the same size as it was without proguard. Also obfuscation occurs only for few of the classes , not all.

What am I missing? Any help is appreciated.

Answer 1

Figured out myself. I configured proguard for the referencing project instead of configuring it in the library. All referenced libraries were automatically taken care of and i was able to shrink the size of final apk by about 30%.

Answer 2

obfuscation does not occur for all classes, some classes are skipped as they need to remain (normal) mainly, the views, and other classes that need to be accessed by external components

also check Proguard config file, you some classes might be set as skipped by mistake.