Application wrapper over the database, how?

Question

Java

Hello everyone,
I am developing an android application, the essence is a wrapper over the database.
The database (sqlite) will be updated frequently, how to set up this process?
That is, I understand that you need to update the database with data from the Internet, etc., but have you seen such tutorials?
What would you recommend as a backend?
Can you advise privately?

Answer 1

Everything was invented before us
ContentProvider + CursorLoader + CursorAdapter
Update in another thread, on the rest api backend, on the client for rest retrofit + gson requests