SharedPreferences application context vs activity context

Question

I am using several SharedPreferences to store data in my app. Some preferences are used in a lot of activites.

I know that the SharedPreferences are internally back

Answer 1

I will prefer using a singleton class for preference, initialize preference once by application context. create getter and setter(get/put) methods to add, update and delete data.

This way it will create instance once and can be more readable,reusable.