This tutorial details the EASY way to create a simple mobile app, with the bulk of the code running on your web server (we would recommend using Ubuntu with Apache or NGinx on something like a Digital Ocean Droplet). You don’t need to do the actually Android/iOS development bit yourself, but by all means you can skip our step about this and do that end yourself if you want!
Android Hello World
Before you start writing your first example using Android SDK, you have to make sure that you have set-up your Android development environment properly. We also assume that you have a little bit working knowledge with Android Studio from class.
So let us proceed to write a simple Android Application which will print “Hello World!”.