直接调用android自带的SDK

#if UNITY_ANDROID && !UNITY_EDITOR    AndroidJavaClass localeClass = new AndroidJavaClass("java/util/Locale");      AndroidJavaObject defaultLocale = localeClass.CallStatic
     
      ("getDefault");      AndroidJavaObject usLocale = localeClass.GetStatic
      
       ("US");      string systemLanguage = defaultLocale.Call
       
        ("getDisplayLanguage", usLocale);      Debug.Log("systemLanguage:" + systemLanguage);      SystemLanguage code;      try {          code = (SystemLanguage)Enum.Parse(typeof(SystemLanguage), systemLanguage);      } catch {          code = SystemLanguage.Unknown;      }#else         SystemLanguage code = Application.systemLanguage;         #endif