This simple SMS inbox reader application demonstrates the best implementation of MVC architectural pattern in Android.
I wrote a series of posts about this particular implementation of MVC for Android in a blog.
If you're looking for an architecture for a professional project, or just want to understand the topic of Android architecture at a professional level, check out my course about Android architecture.
android_mvc_tutorial binaries and source code can be used according to the Apache License, Version 2.0.