UWP Getting Username Asyncronously using Unity

I am building a UWP app to pull the current Windows user DisplayName. When I build the app just using the native Visual Studio 2015 UWP C# API, the app builds fine and the username is populated once the user accepts their credentials to be accessed by the app.

When I run the same function through Unity with an added queue, I get the error:



I have a script that I attached to a button. The function callFunction() is called on the On_Clicked() function from the Unity editor. Can anyone help? I did allow the User Account Information in the package manifest. Here is the script:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.UI;
5. using System;
6. using System.Linq;
7.  
8. #if (!UNITY_EDITOR && UNITY_WSA_10_0)
9. using Windows.System;
10. using Windows.UI.Core;
11. #endif
12.  
13. public class login : MonoBehaviour
14. {
15.  
16.     public InputField login_field;
17.     public Button login_button;
18.     public Queue<Action> actions;
19.  
20.     //initialize queue
21.     void Start()
22.     {
23.         actions = new Queue<Action>();
24.     }
25.  
26.     //dequeue once action received
27.     void Update()
28.     {
29.         while (actions.Count > 0)
30.         {
31.             var action = actions.Dequeue();
32.             if (action != null)
33.                 action();
34.         }
35.     }
36.  
37.     //enqueue when button pressed
38.     public void callFunction()
39.     {
40.         actions.Enqueue(() =>
41.         {
42. #if (!UNITY_EDITOR && UNITY_WSA_10_0)
43.                 login_button_pressed();
44. #endif
45.         });
46.     }
47.  
48.     //function to pull current username
49. #if (!UNITY_EDITOR && UNITY_WSA_10_0)
50.     public async void login_button_pressed()
51.     {
52.         //find username
53.         IReadOnlyList<User> users = await User.FindAllAsync();
54.  
55.         var current = users.Where(p => p.AuthenticationStatus == UserAuthenticationStatus.LocallyAuthenticated &&
56.         p.Type == UserType.LocalUser).FirstOrDefault();
57.  
58.         //user may have username
59.         var data = await current.GetPropertyAsync(KnownUserProperties.DisplayName);
60.         string displayName = (string)data;
61.  
62.         //or may not be available
63.         if (String.IsNullOrEmpty(displayName))
64.         {
65.             displayName = "User";
66.         }
67.  
68.         login_field.text = displayName;
69.     }
70. #else
71.     void login_button_pressed()
72.     {
73.         login_field.text = "User";
74.     }
75. #endif
76. }
77.  

 

This worked perfectly! Thanks for your help!

I replaced the text assignment with:

Code (CSharp):

1. UnityEngine.WSA.Application.InvokeOnAppThread (() => {login_field.text = displayName;},false);
2.     }

 

I know this is a bit old, but I am having trouble with this script. After debugging, I can see that it gets stuck on line:var current = users.Where(p => p.AuthenticationStatus == UserAuthenticationStatus.LocallyAuthenticated && p.Type == UserType.LocalUser).FirstOrDefault();

There is no error, but before and after this line I made it display a text. The text before shows up but not after. Any ideas of what I am may be doing wrong?

 

Thank you so much for getting back to me so quickly! Here is my code:

Code (csharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5. using UnityEngine.UI;
6. using System;
7. using System.Linq;
8. using TMPro;
9.  
10. #if (!UNITY_EDITOR)
11. using Windows.System;
12. using Windows.UI.Core;
13. #endif
14.  
15. public class UWPManager : MonoBehaviour
16. {
17.     public TextMeshPro username;
18.     public Queue<Action> actions;
19.  
20.     //initialize queue
21.     void Start()
22.     {
23.         actions = new Queue<Action>();
24.  
25.         actions.Enqueue(() =>
26.         {
27.             login_button_pressed();
28.         });
29.     }
30.  
31.     //dequeue once action received
32.     void Update()
33.     {
34.         while (actions.Count > 0)
35.         {
36.             var action = actions.Dequeue();
37.             if (action != null)
38.                 action();
39.         }
40.     }
41.  
42.     //enqueue when button pressed
43.     public void callFunction()
44.     {
45.         actions.Enqueue(() =>
46.         {
47. #if (!UNITY_EDITOR)
48.             login_button_pressed();
49. #endif
50.         });
51.     }
52.  
53.     //function to pull current username
54. #if (!UNITY_EDITOR)
55.     public async void login_button_pressed()
56.     {
57.         //find username
58.         IReadOnlyList<User> users = await User.FindAllAsync();
59.  
60.         var current = users.Where(p => p.AuthenticationStatus == UserAuthenticationStatus.LocallyAuthenticated && p.Type == UserType.LocalUser).FirstOrDefault();
61.  
62.         //user may have username
63.         var data = await current.GetPropertyAsync(KnownUserProperties.DisplayName);
64.         string displayName = (string)data;
65.  
66.         //or may not be available
67.         if (String.IsNullOrEmpty(displayName))
68.         {
69.             displayName = "Anonymous";
70.         }
71.  
72.         UnityEngine.WSA.Application.InvokeOnAppThread(() => { username.text = "Got " + displayName + " " + current.NonRoamableId;  }, false);
73.     }
74. #else
75.     void login_button_pressed()
76.     {
77.         username.text = "Anonymous";
78.     }
79. #endif
80. }
81.  

I was able to get a bit farther when I changed var current = ... to var current = users.ToList()[0];
However, I keep getting "Got Anonymous" for displayName. I do get a NonRoamableId though.


UPDATE: I figured it out!!! I was doing 3 things wrong. First, I didn't enable "UserAccountInformation" in UWP Build Settings. Second, I had to manually allow my app access to my username from device (Hololens). Third, my Displayname was actually set as blank for some reason! I figured it out when I logged into Microsoft Forum and it asked me to create a displayname. My final code was this:

Code (csharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5. using UnityEngine.UI;
6. using System;
7. using System.Linq;
8. using TMPro;
9.  
10. #if (!UNITY_EDITOR)
11. using Windows.System;
12. using Windows.UI.Core;
13. #endif
14.  
15. public class UWPManager : MonoBehaviour
16. {
17.     public TextMeshPro username;
18.  
19.     void Start()
20.     {
21.         FetchDisplayName();
22.     }
23.  
24.     //function to pull current username
25. #if (!UNITY_EDITOR)
26.     public async void FetchDisplayName()
27.     {
28.         var res = await User.FindAllAsync(UserType.RemoteUser);
29.         foreach (var r in res)
30.         {
31.             var props = await r.GetPropertiesAsync(new string[] { KnownUserProperties.DisplayName });
32.             foreach (var p in props)
33.             {
34.                 username.text += (p.Value + "\n");
35.             }
36.         }
37.     }
38. #else
39.     void FetchDisplayName()
40.     {
41.         username.text = System.Environment.UserName;
42.     }
43. #endif
44. }
45.