TweenAlpha for all content in Sprite

[Romano]

Hello
1) How to apply the alpha to all children of the object using TweenAlpha?
2) How to work with tweenAlpha.onFinished?
3) How to get  target from onFinished method?

[ArenMook]

1. TweenAlpha works on a single component, so if you need it to work on multiple, you need multiple tweens. Either that or derive from UITweener to implement your own custom tween component.

2. Use EventDelegate.Add(tween.onFinished, YourCallback);

3. UITweener.current. With NGUI event delegate, it's always <className>.current.

[Romano]

I'm doing this

1. void ShowPanel()
2.         {
3.                 print ("ShowPanel");
4.                 gameObject.SetActive(true);
5.  
6.                 foreach(var widget in gameObject.GetComponentsInChildren<UIWidget>())
7.                 {
8.                         tweenAlpha = TweenAlpha.Begin(widget.gameObject, duration, 1);
9.                 }
10.         }
11.  
12.         void HidePanel()
13.         {
14.                 print ("HidePanel");
15.                 foreach(var widget in gameObject.GetComponentsInChildren<UIWidget>())
16.                 {
17.                         tweenAlpha  = TweenAlpha.Begin(widget.gameObject, duration, 0);
18.                         EventDelegate.Add(tweenAlpha.onFinished, ChangeVisible);
19.                 }
20.         }
21.  
22.         public void ChangeVisible()
23.         {
24.                 print ("ChangeVisible");
25.                 print("UITweener.current: " + UITweener.current);
26.  
27.                 EventDelegate.Remove(UITweener.current.GetComponent<TweenAlpha>().onFinished, ChangeVisible);
28.                 gameObject.SetActive(false);
29.         }

When calling ShowPanel again. After the ShowPanel is called ChangeVisible. Why?! I remove listener on onFinished.
What am I doing wrong?

[ArenMook]

If you want it to be removed after getting called, pass 'false' for the last parameter, like so:

1. EventDelegate.Add(tweenAlpha.onFinished, ChangeVisible, false);

Then you don't need the Remove() call.

[Romano]

it's don't working (

[Romano]

It removes only one listener. Why?!

[Romano]

it's working!

1. void ShowPanel()
2.         {
3.                 print ("ShowPanel");
4.                 countAlpha = 0;
5.                 gameObject.SetActive(true);
6.  
7.                 foreach(var widget in gameObject.GetComponentsInChildren<UIWidget>())
8.                 {
9.                         tweenAlpha = TweenAlpha.Begin(widget.gameObject, duration, 1);
10.                 }
11.         }
12.  
13.         void HidePanel()
14.         {
15.                 print ("HidePanel");
16.                 foreach(var widget in gameObject.GetComponentsInChildren<UIWidget>())
17.                 {
18.                         tweenAlpha  = TweenAlpha.Begin(widget.gameObject, duration, 0);
19.                         EventDelegate.Add(tweenAlpha.onFinished, ChangeVisible, true);
20.                 }
21.         }
22.  
23.         public void ChangeVisible()
24.         {
25.                 print ("ChangeVisible");
26.                 countAlpha++;
27.                 if (countAlpha >= gameObject.GetComponentsInChildren<UIWidget>().Length) {
28.                         gameObject.SetActive(false);
29.                 }
30.         }

[Romano]

When to ameObject.SetActive(false), then onFinished other objects does not working

[ArenMook]

Why are you tweening out so many widgets anyway? Why not just TweenAlpha the panel that the widgets use? This way you only need one tween.

[Romano]

Clipping does not work when the panel inside the panel

[ArenMook]

That's right, that limitation is mentioned on the doc page for UIPanel: http://www.tasharen.com/forum/index.php?topic=6705.0 -- but we're talking about tweening alpha here, not clipping -- and alpha is nested.

[Romano]

I understand. How to fix that situation?

[ArenMook]

You can't have multiple clip rects affect widgets. Only one panel can clip widgets within. There is currently no way to get it to work otherwise with NGUI.

[Romano]

How to fix that situation WITH ANIMATION?