unity3d 获取ios限制广告跟踪状态

C#

    public static bool GetIsAdvertisingTrackingEnabled()
    {

#if  ( UNITY_ANDROID )
        return true;
#elif UNITY_IPHONE && !UNITY_EDITOR
        return _IOS_IsAdvertisingTrackingEnabled();
#endif
        return true;
    }

IOS

    bool _IOS_IsAdvertisingTrackingEnabled()
    {
        if ([[ASIdentifierManager sharedManager] isAdvertisingTrackingEnabled])
            return true;
        else
            return false;
    }