Beginner app developer

I am a complete beginner in the android application development. I wanted to create an interactive application for little children with pictures and sounds. What is the best way to begin? Should i use processing for android or should i use android studio?

If you know how to code and know Processing, use Processing for Android.

If you know how to code but don’t know Processing, use Android Studio.

If you don’t know how to code, use Processing for Android.