Question

In my Android application, I need to make a list of favorite items. Each of these items consists of 3 key/value pairs. I want a dynamic array capable of:

• Insertion at end only
• Sortable
• Deletion at any point
• Can be saved to File

Any suggestions?

Answer 1

SharedPreferences sounds perfect given your requirements.

The SharedPreferences class provides a general framework that allows you to save and retrieve persistent key-value pairs of primitive data types. You can use SharedPreferences to save any primitive data: booleans, floats, ints, longs, and strings. This data will persist across user sessions (even if your application is killed).