Fetching Data from MySQL and Loading into RecyclerView
The Complete Updated Guide:

This tutorial is going to cover about all the basics of RecyclerView in Android. You can use RecyclerView to display large data set that changes dynamically.
In this Video we will load images from URL in the RecyclerView Items.
We are using Picasso Library here and you can read more about picasso from this link

Picasso Android Tutorial – Android Picasso Image Loader Library

You can use the following link for web service