UISlider something is wrong !?

[Tester1234]

Hi, I have UI Slider, I set value on start (lets say 0.6f), I check inspector the value is there, but the thumb is not in the right place. (UISlider script value is correct, but thumb is not in correct place). However, after I move the thumb everything is fine.

1.        
2.         public enum Type{MUSIC, SOUND, CONTROLLER_SIZE_01, CONTROLLER_SIZE_02, CONTROLLER_TRANSPARENCY_01};
3.         public Type type;
4.         private UISlider uiSlider;
5.        
6.         void Awake(){
7.                 uiSlider = this.gameObject.GetComponent<UISlider>() as UISlider;
8.                 setUp();
9.         }
10.  
11.         void OnEnable(){
12.                 EventDelegate.Add(uiSlider.onChange, OnValueChange);
13.         }
14.        
15.         private void setUp(){
16.                 switch (type){
17.                 case Type.MUSIC:
18.                         //uiSlider.value = AudioManager.Instance.getVolumeMusic();
19.                         break;
20.                 case Type.SOUND:
21.                         //uiSlider.value = AudioManager.Instance.getVolumeSound();
22.                         break;
23.                 case Type.CONTROLLER_SIZE_01:
24.                         uiSlider.value = ControllerSettings.Instance.getControllerSize01();
25.                         break;
26.                 case Type.CONTROLLER_SIZE_02:
27.                         uiSlider.value = ControllerSettings.Instance.getControllerSize02();
28.                         break;
29.                 case Type.CONTROLLER_TRANSPARENCY_01:
30.                         uiSlider.value = ControllerSettings.Instance.getControllerTransparency01();
31.                         break;
32.                 default:
33.                         break;
34.                 }
35.         }
36.  

[ArenMook]

I don't see why this would happen. If the panel the slider is on doesn't have the "static" flag, then I'd be curious to have a repro case of this to have a look at. Just please don't post it here. Email me the download link instead (support at tasharen.com)

[Tester1234]

I have found the problem after long time debugging and testing. Problem was mine, not NGUI related.

I was working on a pop-up menu, all my pop-ups scaled to (0,0,0) with iTween in the beginning. Interestingly, this break the NGUI slider thumb position, if I dont scale, just hide pop-ups, everythings is working fine.

Thanks.

[ArenMook]

It's because you can't divide by zero, so it's not possible to calculate the inverse transform matrix to convert from world space to local space.

Zero scale is invalid.