Chapter 11
Working with Preferences and Saving State
Android offers a robust and flexible framework for dealing with settings, also known as preferences. And by settings, we mean those feature choices that a user makes and saves to customize an application to their liking. (In this chapter, the terms settings and preferences will be used interchangeably.) For example, if the user wants a notification via a ringtone or vibration or not at all, that is a preference the user saves; the application remembers the choice until the user changes it. Android provides simple APIs that hide the management and persisting of preferences. It also provides prebuilt user interfaces that you can use to let the user make preference selections. Because of the ...
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