It is full of how-to information along with code snippets that illustrate the ideas presented.
It features both how-to's that overlap with the official documentation, and material that goes beyond this to be more tutorial, more in-depth, or explaining "lessons from the trenches": what actually works to get the application functioning well.
The main intent of this app is to get you to participate actively in learning and contributing to making great Android Apps.
The crowd sourced content both the textual description and the code fragment(s) come under the Creative Commons Attribution cc-by License.
Kindly report all your feedback for improvement of this app to [email protected]