SharedPereferences is an API that allows you to save a small collection of data persistently. This course, Android Fundamentals: SharedPreferences, is all about basics and fundamental concepts of SharedPreferences. First, you'll get an introduction to Android storage options. Next, you'll see how saving and retrieving data from SharedPreferences works. Finally, you'll use GSON to save and retrieve non-primitive data types. After completing this course, you'll know how to save, retrieve, and modify data both at the activity level and application level through your illustrative demo application.