Unity5.3.4版本打包APk，安卓识别不了 Application.systemLanguage

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<AndroidJavaObject>("getDefault");  
    AndroidJavaObject usLocale = localeClass.GetStatic<AndroidJavaObject>("US");  
    string systemLanguage = defaultLocale.Call<string>("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