For any particular set of preferences, there is a single instance of this class that all clients share. SharedPreferences: Interface for accessing and modifying preference data returned by getSharedPreferences(String, int). It is also good to mark recent migration for a user review of recent changes. From the Android Developer site: PreferenceManager: Used to help create Preference hierarchies from activities or XML. ANDROID MIGRATE SHARED PREFERENCES TO PREFERENCE MANAGER UPDATEThis gives me a nice way of settings migration, based purely on strings xml resources and no code changes, also it should migrate step by step all following versions if user did not update the application frequently :-) Preference DataStore, like SharedPreferences, has no way to define a schema or to ensure that keys are accessed with the correct type.
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