Facebook SDK and GUI related issues.

Hello,

I am trying very simple Facebook integration into unity. I have empty space with just simple code:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using System.Collections.Generic;
4. using Facebook.Unity;
5.  
6. public class FBholder : MonoBehaviour {
7.  
8.     void Awake ()
9.     {
10.         FB.Init (SetInit, OnHideUnity);
11.     }
12.  
13.     private void SetInit()
14.     {
15.         Debug.Log ("FB init done.");
16.  
17.         if (FB.IsLoggedIn) {
18.             Debug.Log ("FB Logged In");
19.         } else {
20.             FBlogin ();      
21.         }
22.     }
23.  
24.     private void OnHideUnity(bool isGameShown){
25.    
26.         if (!isGameShown) {
27.             Time.timeScale = 0;
28.         } else {
29.             Time.timeScale = 1;
30.         }
31.     }
32.  
33.     void FBlogin(){
34.  
35.         List<string> perms = new List<string>() { "public_profile, email", "user_friends" };
36.         FB.LogInWithReadPermissions(perms, AuthCallback);
37.  
38.     }
39.  
40.     void AuthCallback(ILoginResult result)
41.     {
42.         if (FB.IsLoggedIn) {
43.             Debug.Log ("FB login worked!");
44.         } else {
45.             Debug.Log ("FB Login failed");      
46.         }
47.     }
48. }
49.  

And after run, I am getting this series of errors..basically every frame.

and

Can anyone please point me on somerelevant source of informations, tutorials or something? Everything I am getting while googling is not really helping at all.

Thank you for any answer.

 

Code (CSharp):

1. public void FBLogin()
2.     {
3.         FB.Login("user_about_me", AuthCallBack);
4.     }

One issue I see is there. I will check the rest shortly.

 

Thank you for reaction. I had that before, problem is FB.Login was replaced in latest facebook SDK with "FB.LogInWithReadPermissions" and "FB.LogInWithPublishPermissions". I had hard times to figure out how to set that login and I found this code on this forum. Script compiled without errors and warnings, however during runtime, I have streams of errors I mentioned above.

 

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using System.Collections.Generic;
4.  
5.  
6.  
7.  
8.  
9.     // Use this for initialization
10.     public class FBholder : MonoBehaviour {
11.        
12.         void Awake ()
13.         {
14.             FB.Init (SetInit, OnHideUnity);
15.         }
16.        
17.         private void SetInit()
18.         {
19.             Debug.Log ("FB init done.");
20.            
21.             if (FB.IsLoggedIn) {
22.                 Debug.Log ("FB Logged In");
23.             } else {
24.                 FBlogin ();    
25.             }
26.         }
27.        
28.         private void OnHideUnity(bool isGameShown){
29.            
30.             if (!isGameShown) {
31.                 Time.timeScale = 0;
32.             } else {
33.                 Time.timeScale = 1;
34.             }
35.         }
36.        
37.         void FBlogin(){
38.            
39.             //List<string> perms = new List<string>() { "public_profile, email", "user_friends" };
40.             ///FB.LogInWithReadPermissions(perms, AuthCallback);
41.         FB.Login("user_about_me", AuthCallback);
42.            
43.         }
44.        
45.     void AuthCallback(FBResult loginResults)
46.         {
47.             if (FB.IsLoggedIn) {
48.                 Debug.Log ("FB login worked!");
49.             } else {
50.                 Debug.Log ("FB Login failed");    
51.             }
52.         }
53.     }
54.  

tested and works.

 

What version are you using of Facebook SDK, and Unity, just tested this and works great.

 

Unity is 5.3 and Facebook SDK - 7.3.0

EDIT: With your code I am getting "Facebook.Unity.FB' does not contain a definition for `Login'" error. :/

 

In the facebook script that is causing the error replace GUI.ModelWindow(.... with GUI.Window(...

The whole line is something like

Code (CSharp):

1. GUI.ModelWindow(GetHashCode(), new Rect(windowLeft, windowTop, windowWidth, windowHeight), OnGUIDialog, "Unity Editor Facebook Login");
2.  

it's the GUI.ModelWindow() that causes the problem, and it works perfectly well with GUI.Window()

Edit: BTW there was nothing wrong with your original Login() code.

 

Thank you, you are most probably right, this may be the issue. However it seems they changed folder structure and file structure and I just can't find that script which has this line of code in it. Is there way to look through all scripts at once? ( EditorFacebookAccessToken.cs file doesn't exists anymore)

 

Now this is weird. I found script (i was stupid) with o ModalWindow...changed it to just Window as mentioned above and same thing..same errors. However..when I paused, changed script back to ModalWindow (during runtime) and unpaused, I got Login dialog on the screen. Tested this many times and still the same when I run the game as Window, pause, change back to ModalWindow, unpause and dialog is up..

However it doesn't help much because when I enter token into dialog, scripts tell me I didn't call FB.Init() ...

 

Ya you had some errors on the script you showed us, but I did not look at your error messages since it had a ton and I took your word for it, that it was related to that script..Now looking at it, it looks GUI related... as well, but you still have issues with your facebook script as well, I updated to 5.3.2 since that is what the new SDK from Facebook is using... So you have a bunch of small issues that you will need to tackle one at a time... then come back and people give us all of the correct info next time.. Thanks.

 

Hi,

I don't know if this is related to your issues, but there is a bug in Facebook SDK 7.3.0 related to the MockDialog in the Unity Editor. Facebook is already aware of this and will push the fix on the next update:

https://developers.facebook.com/bugs/412005298997939/

I fixed it temporary with the post recommendation, to change the OnGUI method in the EditorFacebookMockDialog.cs:

Code (CSharp):

1. public void OnGUI()
2. {
3.     if (this.modalStyle == null) {
4.         this.modalRect = new Rect(10, 10, Screen.width - 20, Screen.height - 20);
5.         Texture2D texture = new Texture2D(1, 1);
6.         texture.SetPixel(0, 0, new Color(0.2f, 0.2f, 0.2f, 1.0f));
7.         texture.Apply();
8.         this.modalStyle = new GUIStyle(GUI.skin.window);
9.         this.modalStyle.normal.background = texture;
10.     }
11.     GUI.ModalWindow(
12.         this.GetHashCode(),
13.         this.modalRect,
14.         this.OnGUIDialog,
15.         this.DialogTitle,
16.         this.modalStyle);
17. }

And if you are using Facebook SDK 7.3.0 you should use "FB.LogInWithPublishPermissions" there is an example page with code: https://developers.facebook.com/docs/unity/examples

 

Surely you only need to ask for publish permissions when and if you need them, otherwise only requesting read permissions is the preferred way to go.

 

When i implement the Facebook score API in iOS build the game crashed But in android it works. Any solution for it.
For IOS we should do any thing setting changes in editor or in build.

 

@ManiaCCC The issue you got is related to a bug in that version of the SDK. Update your facebook sdk to fix that error.
Facebook stuff requires 'using Facebook.Unity;' not Facebook.Unity.FB

 

k. i will update and inform you