http://blog.csdn.net/lmj623565791/article/details/51304204

http://blog.csdn.net/guolin_blog/article/details/53939176

http://www.jianshu.com/p/aad5aacd79bf

查看android源码的网址 http://grepcode.com

http://www.jianshu.com/p/e99b5e8bd67b

https://www.oschina.net/news/73836/15-android-general-popular-frameworks