Android program structure guide?

Question

Android

I am planning to write an application how to make it so that when entering the application a list of items is displayed that contained sub-items which in turn were displayed in tabs
Like here https://play.google.com/store/apps/details?id=ua.o. ..
where can I see code examples?

Answer 1

What kind of code examples are there, and everything is so simple to disgrace ─ two tables, one for content, the other for bookmarks for the
contentnet : all