In app/config.java there are constants such as debug mode which can be changed to see logging in network calls as well as in other internal logic
This project uses the MVP archetecture pattern for the presentation layer logic. 
Each view implements an IModel, IView, and IPresenter class.
This app uses RxJava and retrofit2 for network handling which uses the observer pattern. 
This app also uses Picasso for image loading. 
Databinding has also been incorperated into the views under ui/search package.