code: static SharedPreferences getSharedPreferences() {
          if (null == getApplicationContext())
              return null;
          SharedPreferences rtn = getApplicationContext().getSharedPreferences(PREF_FILE, Context.MODE_PRIVATE);
          if (null == rtn) {
              Log.e(WonderPush.TAG, "Could not get shared preferences", new NullPointerException("Stack"));
          }
          return rtn;
      }
docs: Gets the WonderPush shared preferences for that application.