What to study. to become a Junior Android Developer?

Question

Android

I want to become an android developer. But what do I need to know for this? What to learn first: Java or Kotlin? What frameworks do you need to know? Etc. in that spirit.
Tell me, please, what language (to begin with) you need to learn.

Answer 1

What to learn first: Java or Kotlin?

In general, Java. It is still used far not only in android development.
As for the level - for now just teach. When you feel that you have reached some sane level, start going to interviews while continuing to teach. Of course, the first time you will most likely be refused, but you will be able to collect the "average in the ward" requirements and skills and gradually rise to them.

Answer 2

You take default books on Java, which can be found in the public domain, you can also take courses on approximately such sites https://stepik.org/catalog/search?q=Java . As soon as you finish, you immediately start looking for vacancies in the network at Middle, look at the requirements for the developer and study them already.