(These days, when I look at Android, I use git to download an Android source code. I look at the source code that is not generally available on the network, and I make a seed under the pain of eggs (there is no way to save it on the 20g network). I think it should be complete. I want to look at the bottom layer of Android, and perhaps look at the Java source code of Android extracted by myself. Hey hey, I can make a profit)