How can i learn Android application development in step by step?

Answer 1

https://www.sololearn.com/discuss/1344782/?ref=app

Answer 2

check out Udacity free and best for beginners.

Answer 3

Their are mainly 2 options -
1. Hybrid (Using other languages)-
Up and running very fast. Use JS, html and Adobe build. And your app is ready.
2. Native (Using java) -
Setting up android studio(2gb in size), it requires quite a decent pc otherwise it works really slow.
It takes quite a time.

If you are new to android app development and want to get your app up and running I suggest using JS for it. Be it is really good practice wise. You can constantly monitor your app progress in browser.