https://source.android.com/source/
https://developer.android.com/guide/platform/index.html
http://haifux.org/lectures/298/android.pdf
http://coltf.blogspot.com/p/android-os-processes-and-zygote.html
http://www.all-things-android.com/content/understanding-android-file-hierarchy
http://newandroidbook.com/AIvI-M-RL1.pdf
http://newandroidbook.com/TOC.html
http://newandroidbook.com/files/Andevcon-Binder.pdf
https://www.slideshare.net/BinChen3/android-graphic-system-surface-flinger-patternsperspective-external-version
http://netaz.blogspot.co.il/2015/03/androids-graphics-buffer-management.html
https://www.imgtec.com/blog/learning-about-the-android-graphics-subsystem/
http://www.androidpolice.com/2012/07/12/getting-to-know-android-4-1-part-3-project-butter-how-it-works-and-what-it-added/
http://dragon.leanote.com/post/Android-%E5%9B%BE%E5%BD%A2%E7%B3%BB%E7%BB%9F-%EF%BC%88Android2.x%EF%BC%8C4.0-4.1-4.2%EF%BC%89
http://www.cnblogs.com/deman/p/5584198.html
http://echuang54.blogspot.com/2015/01/dispsync.html
http://blog.csdn.net/kastland/article/details/40016965
https://guides.codepath.com/android