Question

My project does not enable proguard when creating it. Therefore I need to manually add proguard and enable it via project.properties.

Is there any way I can know whether my application has been obfuscated or not aside from reverse engineering?

Answer 1

If your application has been obfuscated you will see a new folder called proguard in you project folder.
It should contain four text files: dump, mapping, seeds and usage.

Note that your project will not be obfuscated unless you build it in release mode.