Android comes with a SharedPreferences interface that can be used to manage application settings as key/value pairs. SharedPreferences also takes care of the writing of data to a file. In addition, Android provides the Preference API with user interface (UI) classes that are linked to the default SharedPreferences instance so that you can easily create a UI for modifying application settings.
This chapter discusses SharedPreferences and the Preference API in detail.
The android.content.SharedPreferences interface provides methods for storing and reading application settings. You can obtain the default instance of SharedPreferences by calling the getDefaultSharedPreferences static method of PreferenceManager ...