security - Android libraries - Proguard -

i've finished develop android application, time obfuscate code, , use 'proguard. have edited 'project.properties' file , i've added line 'proguard.config=proguard.cfg'.

but android project has dependencies other 2 android projects have marked android libraries.

i not sure if android libraries obfuscated or if should more.

thanks in advance!