NGUI 3.0.8f7 update issue : currentTouch = null

[kitgui]

I after updating, I found that the placement of some menu elements are a little off - no problem, I can just move them again - and UIButtonColor is now throwing a NullRefException.

I pinned the issue down to line 171 in UIButtoncolor.cs :

1. else if (UICamera.currentTouch.current == gameObject && UICamera.currentScheme == UICamera.ControlScheme.Controller)

I haven't yet gone and looked at how NGUI has changed that I would now be getting this issue, just thought I would post it in case someone knows a quick fix.

Thanks in advance! 

[ivomarel]

From the NGUI ReadMe:

3.0.8 f7
- FIX: UIPanel's "explicit" render queue option should now work correctly.
- FIX: UITweener.Play should behave better with duration of 0.
- FIX: NGUITools.FindCamera will prioritize the Main Camera over others (fix for Unity Water).
- FIX: Null exception fix in UIKeyBinding.

Perhaps it's the Camera-fix?

[ArenMook]

UIButton script expects to know where the event came from. If you're triggering the button's logic yourself, you likely didn't set UICamera.currentTouch value to anything. I don't remember if f7 had the fix for UIKeyBinding that would cause this. If not, then change its Update function to the following and it should fix it:

1. void Update ()
2.         {
3.                 if (keyCode == KeyCode.None || !IsModifierActive()) return;
4.  
5.                 if (action == Action.PressAndClick)
6.                 {
7.                         if (UICamera.inputHasFocus) return;
8.  
9.                         UICamera.currentTouch = UICamera.controller;
10.                         UICamera.currentScheme = UICamera.ControlScheme.Controller;
11.                         UICamera.currentTouch.current = gameObject;
12.  
13.                         if (Input.GetKeyDown(keyCode))
14.                         {
15.                                 UICamera.Notify(gameObject, "OnPress", true);
16.                         }
17.  
18.                         if (Input.GetKeyUp(keyCode))
19.                         {
20.                                 UICamera.Notify(gameObject, "OnPress", false);
21.                                 UICamera.Notify(gameObject, "OnClick", null);
22.                         }
23.                         UICamera.currentTouch.current = null;
24.                 }
25.                 else if (action == Action.Select)
26.                 {
27.                         if (Input.GetKeyUp(keyCode))
28.                         {
29.                                 if (mIsInput)
30.                                 {
31.                                         if (!mIgnoreUp && !UICamera.inputHasFocus)
32.                                         {
33.                                                 UICamera.selectedObject = gameObject;
34.                                         }
35.                                         mIgnoreUp = false;
36.                                 }
37.                                 else
38.                                 {
39.                                         UICamera.selectedObject = gameObject;
40.                                 }
41.                         }
42.                 }
43.         }

[kitgui]

You are right that I'm handling input myself, I needed each player to have their own controller-specific menu.

Sadly, the copy of UIKeyBinding I have contains the same Update() function you posted, but the issue still persists.

Could it have something to do with UIButtonColor executing before UIKeyBinding?

[ArenMook]

As I mentioned, if you are doing your own input logic then you will need to do what I did in the UIKeyBinding class:

1. UICamera.currentTouch = UICamera.controller;
2. UICamera.currentScheme = UICamera.ControlScheme.Controller;
3. UICamera.currentTouch.current = gameObject;

...before calling any OnPress, OnClick, or other events.