A Simple Google Image Search to understand following concepts:
MVC Concept.
Network Calls(API calls).
Passing Data Between Activities.
Grid View.
Spinners.
Infinite Scroll.
Menu Items.
=============================================================== Resouces:
Google Search Api : https://developers.google.com/image-search/
Android Async Http : http://loopj.com/android-async-http/
Android Smart Image : http://loopj.com/android-smart-image-view/