With Google making it more closed every year, I wonder if is it worth it. I don’t want to learn it to find a job or anything, it’s purely for open source development.
I’ve seen a few devs dropping FOSS apps due to Google decisions. Like the developer of a music player I used (Phocid):
According to him and I agree:
Because Google is essentially killing apps distributed outside of Google Play, I have lost interest in Android development and plan to switch to a different OS once my current five-year-old phone dies.
Learning is fine. Its not too much different than other development if you have ever worked on java.
That being said if i had to make an app, i would just make a mobile site and call it a day. That way you can have iphone and any computer work with it.