Android™ Application Development - Bahar Ali Khan

Chapter 6: Data Storage, Retrieval, and Sharing
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Android provides a fully featured SQLite RDBMS to all applications. This small, effi cient, and robust
database lets you create relational databases to persist application data. Using Content Providers, you
learned how to share private data, particularly databases, across application boundaries.
All database and Content Provider queries are returned as Cursors; you learned how to perform queries
and extract data from the resulting Cursor objects.
Along the way, you also learned to:
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Save and load fi les directly to and from the underlying fi lesystem.
Include static fi les as external project resources.
Create new SQLite databases.
Interact with databases to insert, update, and delete rows.
Use the native Content Providers included with Android to access and manage native data like
media and contacts.
With a solid foundation in the fundamentals of Android development, the remainder of this book will
investigate some of the more interesting optional Android features.
Starting in the next chapter, you’ll be introduced to the geographic APIs. Android offers a rich suite
of geographical functionality including location-based services (such as GPS), forward and reverse
geocoding, as well as a fully integrated Google Maps implementation. Using Google Maps, you can
create map-based Activities that feature annotations to develop native map-mashup style applications.