Android™ How to Program, Second Edition

5.3.5. Preferences

In Section 5.2.2, you changed the app’s settings to customize the quiz. A PreferenceFragment uses Preference objects (package android.preference) to manage these settings. This app uses Preference subclass ListPreference to manage the number of guess Buttons displayed for each flag and Preference subclass MultiSelectListPreference to manage the world regions to include in the quiz. A ListPreference’s items are mutually exclusive, whereas any number of items can be selected in a MultiSelectListPreference. You’ll use a PreferenceManager object (package android.preference) to access and interact with the app’s preferences.