(Android bookshelf source code, the source code of e-book reading software in Android mobile phones, displays e-books in the form of bookshelves, making the software more visual. A reader shelf has been posted before. The link is here. If you are interested, you can compare the two: reader source code and android shelf effect. Maybe the effect of this Android bookshelf is simpler. If you need it, just study it. The Android source code is relatively complete. This document includes the following annexes:)