public static String getKeyForDevice(SharedPreferences sharedPreferences) {
   return SharedPreferencesWrapper.getValueFromSharedPreferences(sharedPreferences, DEVICE_KEY);
 }
 public static String getUsernameFromSharedPreferences(SharedPreferences sharedPreferences) {
   return SharedPreferencesWrapper.getValueFromSharedPreferences(sharedPreferences, USER_NAME);
 }
 public static String getUidForDevice(SharedPreferences sharedPreferences) {
   return SharedPreferencesWrapper.getValueFromSharedPreferences(sharedPreferences, DEVIDE_UID);
 }