How to manually implement Cache in an Android application?

Question

Android

The application implements 2 types of storage: Database (SQLite) and settings (Preferences).
It is necessary to save the data received from the server (json) to the cache, but not to the database. It is necessary to make such functionality so that the data is cleared by third-party cleaners and by clicking on the "Clear cache" button. At the same time, so that the data in the database and Preference are saved.
The project is educational, in google I can not find anything suitable.
I need information on how to do this using sdk without third-party libraries.

Answer 1

https://developer.android.com/training/data-storag...
Did you really search and didn't find it?!