5. Storing and retrieving data

This chapter covers Storing and retrieving data with SharedPreferences Using the filesystem Working with a SQLite database Accessing and building a ContentProvider

Android provides several ways to store and share data, including access to the filesystem, a local relational database through SQLite, and a preferences system that allows you to store simple key/value pairs within applications. In this chapter, we’ll start with preferences and you’ll create a small sample application to exercise those concepts. From there, you’ll create another sample application to examine using the filesystem to store data, both internal to the application and external using the platform’s Secure Digital (SD) card support. You’ll also see how to create and access a database.