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What is the best practice for unlocking app features to the user in Android?
How are add-ons for apps handled? Let's say I write a game and want to release levels in episodes.
From what I have read here Google Help-Page on DLC, every batch of levels should be an application. So I guess I have to use the package manager to check if the user has some of them on the device. The accepted answer of this similar question, here, suggests the same thing, but it only covers resources.
So I'm wondering, based on that, if I had not only resources, but actual logic, that I could just use another apk as a sort of 'jar' file for everything?
I have the feeling that this might be the kind of question I should know the answer for by reading the manual, but ...it has eluded me, despite doing so.