SharedPref Manager is a dev debug tool that helps to manage your android Shared Preferences very effectively.
A library which helps you register Google Cloud Messaging tokens and listen for GCM messages. It can be used to attach multiple providers and seamlessly deliver data and token to all the listeners. This library is very helpful for those you use multiple push notification provider.
Every major open-source project has its own style guide: a set of conventions (sometimes arbitrary) about how to write code for that project. It is much easier to understand a large codebase when all the code in it is in a consistent style.
"Style" covers a lot of ground, from "use camelCase for variable names" to "never use global variables" to "never use exceptions." This project holds the style guidelines we use for Google code. If you are modifying a project that originated at Google, you may be pointed to this page to see the style guides that apply to that project.