I have been making a game for a while in Android Studio, using just plain Android features like Drawable-s and such for the visuals.
I am planning to add change/update some things and I think that would be easier to do with Godot, but I want to keep the rest of the application in Android Studio.
Is it possible to make something in Godot and export/integrate that into an Android Studio project? Maybe as a separate Activity or Fragment?
If not possible in Godot, is it possible in some other similar game engine?
It seems it is indeed possible to do this in Godot (github discussion), but there is no documentation for it yet (github discussion).
However I discovered it is possible to run LibGDX code in a fragment of an activity (wiki page). I ended up doing it with LibGDX both because I found it to have less of a learning curve from my experience, and it would still be part of the android application and I could pass callbacks and other Java objects back and forth between the Android specific features and LibGDX game logic.