http://www.csdn.net/article/2013-05-03/2815127-Android-open-source-projects
http://www.eoeandroid.com/thread-311366-1-1.html
http://blog.csdn.net/pzhtpf/article/details/7295749
http://www.csdn.net/article/2014-05-09/2819705-best-resources-android-development