How much 'practice' in coding does one need to build their first Android app?

Question

That's basically the whole question...

Answer 1

You will practice creating every one of your apps, so you don't need a minimum of practice, just start!!! :)

Answer 2

For Java I would recommend to have an understanding of the concepts of classes, objects and functions. You will see a lot of this.

For the xml side you can pick it up quite easily so you don't really need to know anything but if you have seen similar code it would help. It's similar to a combination of HTML and CSS so seeing these languages before could also help but again is not totally necessary