SharedPreferences in Clean Architecture?

How is it more correct to organize the logic of working with SharedPreferences in Clean Architecture? After all, it will be difficult to access stored data from everywhere, it will entail the expenditure of time and nerves when you need to change something. If we write only one class for this, it will be “clean”. In this class, private keys and public getters / savers for the data will obviously be stored.

Method 1

Let's try to create it somewhere, and then forget where to access it from anywhere. The most stupid thing that comes to mind is to save it in a custom class inherited from Application :

 public class App extends Application { private static Prefs prefs; @Override public void onCreate() { super.onCreate(); prefs = new Prefs(this); } public static Prefs getPrefs() { return prefs; } } 

Well, the Prefs class Prefs written like this:

 public class Prefs { private static final String COINS = "coins"; private SharedPreferences sp; public Prefs (Context context) { sp = PreferenceManager.getDefaultSharedPreferences(); } public long getCoins() { return sp.getLong(COINS, 0); } public void saveCoins(long coins) { sp.edit().putLong(COINS, coins).apply(); } } 

The method is quite good, everything is logical: the application ( App ) contains the settings ( Prefs ), but it does not really like that every call to Prefs passes through the App .

Method 2

Initialize the Prefs and let it live by its nature

 public class App extends Application { @Override public void onCreate() { super.onCreate(); Prefs.init(this); } } 

Well, what it looks like:

 public class Prefs { private static final String COINS = "coins"; private static SharedPreferences sp; public static void init(Context context) { sp = PreferenceManager.getDefaultSharedPreferences(); } public static long getCoins() { return sp.getLong(COINS, 0); } public static void saveCoins(long coins) { sp.edit().putLong(COINS, coins).apply(); } } 

Now you can not touch the App and access Prefs from anywhere directly and, moreover, without transferring the context.

• Which option is better for Clean Architecture?
• Is it logical to place Prefs in com.example.app.data?