Why I build a v2ex app whereas there is such app exists

I visit v2ex website everyday, but there's no official app yet. My purpose is to build a adaptive ui app for both mobile phones and tablets. Since there are basic open apis for me to build a small app easily, and I will add new features as long as there are more apis to use.

This app is inspired by a presentation by Virgil Dobjanschi at Google I/O 2010 and google iosched 2014 sample app. Virgil Dobjanschi represented three modern design patterns without code, they are:

I choose option c to build my app. These design patterns mainly focus on how to store and retrieve data in the background. First of all, there’s no doubt that we store the data fetched from server in local sqlite database. Secondly, we all know not to block main ui.

But how to do it? One of the best practices is: CursorLoader + ContentProvider + SyncAdapter.

Use contentProvider and syncAdapter api design pattern

And this is the incorrect way to implement REST methods.

The Incorrect Implementation of REST Methods