I saw on google that there is an application (Apk Manager) that allows you to extract the elements of an apk. The main function is to allow editing this file. Is there any way to protect the apk and/or the items that belong to it? Thank you.

Yep! Check out ProGuard, which comes with the Android SDK: http://developer.android.com/tools/help/proguard.html Mark

This might help you: http://developer.android.com/guide/google/play/billing/billing_best_practices.html Fred

- Mark: Thank you. That's what I needed to know. - Fred: Thanks for the link. Several interesting tips in this material.

Mark, did you ever look at proguard with a view to making a tutorial - we mentioned it a while ago? Proguard makes it just as easy to destroy an app as it does to protect it if you don't have a good understanding of android code. It's not one to just dive into and hope for the best!

Hi Raveyd I read the content of the material about the proguard and it´s really complicated, but serves as a notion. Then I read several threads on this subject in stackoverflow.com and had access to a basic configuration. I did a test and it worked well so far. Anyway, thanks for the warning.

I started looking into it after we chatted the first time, but quickly ran into issues. Basically, options weren't available as documented, and I was unable, at the time, to get things working. Then I got distracted by other things. I was thinking about it the other day, and it's still on my list. Seems like a good thing to know more about. I just need to sort out why the documentation from Google/Proguard doesn't jive with what I have in my systems. Mark

Hi @RB, glad it's working ok.Be cautious though, it can strip out good code that it doesn't 'understand'. Maybe do a back up first? @Mark, that's what I found. I think the guide on the dev site is like a generic concept and you need something like @RB found on stackoverflow, which I guess is a custom configuration?

I'll have to check out the info on stackoverflow. I did poke around there the first time, but didn't find anything that helped me. Mind you, I didn't spend a ton of time on this, so perhaps next go around I'll have more success. Mark

@RB - do you recall the threads that helped? Can you post the URLs? Thanks!

Hi @Mark Sure. I have read many threads but I kept only these two: http://stackoverflow.com/questions/4732656/enabling-proguard-in-eclipse-for-android http://stackoverflow.com/questions/4444818/proguard-cfg-missing