Preferences are implemented through use of the
SharedPreferences class. A
SharedPreferences object can be used to store primitive data (for example, integers and strings) in a key/value pair. Each value has its own key for storage and retrieval of that data.
SharedPreferences are stored in memory private to the app and will persist as long as the app remains installed on the device. App upgrades will not impact the values stored with
There are two main modes for accessing
getSharedPreferences("String preference name", integer mode) and
getPreferences(integer mode). The
getSharedPreferences mode is used when you want to have more than one set of preferences for an app, or you want the preferences ...