Question

I want to make some data available between some activities, just like a shopping cart on a website would do.

This data would probably be a collection of strings maybe a list, a map or something like that. Each item should have associated a id, quantity, type, and a text note (about last one isn’t sure yet)

The point is that it doesn’t need to be persistent after session ends, and this data will be deleted and recreated completely many times in a whole session.

The question is :
Is the best choice to use a SharedPreferences?, a database?

Thanks!

Answer 1

Even better choice would be some singleton java collection ( map or list ) located via factory object. Just store your cart there and do not bother with database or preferences at all

In case you decide to use preferences, I can recomment my small databinding library:

https://github.com/ko5tik/andject