Yes, if you run an android version with root there are frameworks for doing this. That said, some apps detect when things are too static and won't necessarily work even with these workarounds.

This should be built into the operating system. Didn't Android (or maybe it was iOS) add a feature recently where you can set your camera to be a black screen unless you explicitly give permission to the app even if you gave permission to the app earlier?

> This should be built into the operating system

I agree, but I doubt it will happen. It was already a battle to get the permissions in android as fine-grained as they are. Even though they are fine-grained now, the permissions don't mean anything when every app demands that you give it everything it asks for (even though it clearly does not need them to work).

Oh, fake data generators it is, then.