why not android studio tutorial?

Question

Srry 4 bad english, I m from Brazil
The most famous phrase in java is: "Code once, run anywhere".
When I finished learning java I remembered this phrase and really wanted to code apps for android,so I searched how to do it with java.I concluded that you have to use Android Studio, and you have to know a specifc language from it :(
But I would aprecciate if Solo Learn put an Android Studio tutorial.

Answer 1

The language used by Android is Java
If you know Java you can in fact program all the functionality and logic of any Android app
But the UI, the look and feel of those apps, is mostly done with XML, so it's difficult to build a simulation environment to like Solo Learn, imagine, render and xml archive, and run the jvm, and construct all that in a single app
But there is a lot of videos and books about Android development
And you can learn and practice and use Android Studio for free

Answer 2

You program in java with Android studio... I think.