Where to start developing VR apps for Android?

Question

Can anyone please recommend me an SDK to start with VR(from the list of Cardboard SDK,Daydream,Unity SDK and Oculus)keeping in mind that I'm fairly good at Java only and have developed apps using Android Studio. Any reference links would also help much.Thanks.

Answer 1

For Unity, Google Cardboard is best for now.

Google Cardboard Introduction

Unity Cardboard SDK and Samples

Another Tutorial

I'm fairly good at Java only and have developed apps using Android Studio

You have to learn C#, Unity API. Its similar to Java but you still need to learn it.