What wears out the memory card on android less?

Question

Android

I plan to write a class that, approximately once every 3 minutes in the xamarin application, will save some data to the map, the data has a structure and will either be serialized, or appended to csv, or saved to the sqlite database, given the frequency of writing, I would like to avoid unnecessary writing procedures, which best method to choose?
You can put the question differently, is it realistic to determine that the system plans to throw the application instance out of memory in order to flush the changes to disk first?
So far, it has not been possible to google working examples of intercepting the unloading of an application.

Answer 1

add to the check class to control changes (whether the data has been changed or not) - and when you change it, save it right away.