KeyChain.BindGetKeyChainUser C# (CSharp) Method

    public static string BindGetKeyChainUser()
    {
        return getKeyChainUser();
    }

        public static string GetDeviceUniqueId()
        {
#if UNITY_ANDROID && !UNITY_EDITOR
            AndroidJavaClass  up = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
            AndroidJavaObject currentActivity = up.GetStatic <AndroidJavaObject>("currentActivity");
            AndroidJavaObject contentResolver = currentActivity.Call <AndroidJavaObject>("getContentResolver");
            AndroidJavaClass  secure          = new AndroidJavaClass("android.provider.Settings$Secure");
            return(secure.CallStatic <string>("getString", contentResolver, "android_id"));
#elif UNITY_IPHONE && !UNITY_EDITOR
            //get device id from keychain
            //if it doesn't exist save new deviceid to keychain
            var keychain     = KeyChain.BindGetKeyChainUser();
            var userKeychain = JsonUtility.FromJson <UserKeychain>(keychain);
            if (!string.IsNullOrEmpty(userKeychain.uuid))
            {
                return(userKeychain.uuid);
            }
            KeyChain.BindSetKeyChainUser("0", SystemInfo.deviceUniqueIdentifier);
            return(SystemInfo.deviceUniqueIdentifier);
#else
            return(SystemInfo.deviceUniqueIdentifier);
#endif
        }