Proguard: List of removed

Question

I want to check which classes and methods were removed. Any way to achieve this?

I know mapping.txt shows which symbols is obfuscated to what. But what is removed is not listed there as I know. Proguard web site does not describe about this.

Answer 1

Add the following rules in proguard-rules.pro file in your Gradel Scripts directory

• Generate a report of removed (or kept) code

  add -printusage usage.txt

• To check report of the entry points that R8 determines from your project’s keep rules

  add -printseeds seeds.txt

after this, build signed apk. Then at the root of your projects these files will be generated.

Answer 2

The option -printusage writes out the unused classes, fields, and methods.

Android Gradle builds by default write it to build/outputs/mapping/release/usage.txt.