/**
 * You have to initialize all your preference when open app.
 *
 * @param context
 * @param createDefaultPreference : true if we want to create default {@link SharedPreferences}
 * @param names                   : list of custom {@link SharedPreferences}
 */
SharedPreferencesManager.init(this, true, "Pre1","Pre2"); 
// or using default sharedpreference name only
SharedPreferencesManager.init(this, true);

// Primitive type
SharedPreferencesManager.getInstance().putValue("Test", 1); // save to default sharedPreference 
SharedPreferencesManager.getInstance().getValue("Test", Integer.class);// get from default
// you can get default value if the key is not used before.
SharedPreferencesManager.getInstance().getValue("TestNotSavedBefore", Integer.class,100);// return 100 if key does exist
// Save your custom object:
SharedPreferencesManager.getInstance().putValue("testData", testGun);
Gun gun = SharedPreferencesManager.getInstance().getValue("testData", Gun.class); 
// Save list object to another SharedPreference
SharedPreferencesManager.getInstance(AnotherPreferenceName).putValue("guns", guns);
List<Gun> datas = SharedPreferencesManager.getInstance(AnotherPreferenceName).getValues("guns", Gun[].class); // get list object
// remove/clear value from sharedPreferences:
SharedPreferencesManager.getInstance().clear(); //SharedPreferencesManager.getInstance().remove("test");
// Print the log of all saved value from SharedPreferences:
SharedPreferencesManager.getInstance().printAllKeyValues();
//get All keys from SharedPreferences 
 Map<String, ?> allEntries = SharedPreferencesManager.getInstance().getAllKeys();
 for (Map.Entry<String, ?> entry : allEntries.entrySet()) {
      if (entry == null || entry.getValue() == null) continue;
       Log.e("SharedPreferenceManager", entry.getKey() + ": " + entry.getValue().toString());
     }
// you can also get the SharedPreference to use if you want to interact directly with it
SharedPreferencesManager.getInstance().getSharedPreference();