ActionScript 3.0 :: Display List - Tracing All Symbols On Stage In Timeline
Jun 23, 2009
I am having some kind of issue with the display list? I have a function that goes through various frames of my timeline and then traces all the symbols on the stage..
ActionScript Code:
for (var pm = 0; pm < this.numChildren; pm++) {
var child = this.getChildAt(pm);
trace(child.name)
}
What I am noticing is that it will return everything until it runs into a symbol that does not exist on every frame.. as soon as it does encounter a symbol that does not exist on all frames of the main time line it spits out -
TypeError: Error #1009: Cannot access a property or method of a null object reference. at 3_Migration_Standard_Nav_v2_fla::MainTimeline/pMovie()
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Nov 20, 2009
I've got a movieclip called "rotatorProxy" that spans the entire timeline. I've got nav buttons that jump to various frames on that timeline. I need to get the display depth of rotatorProxy each time the nav buttons move the playhead. The AS3 code is easy enough:
var zIndex:int = this.getChildIndex(getChildByName("rotatorProxy")) ;
my problem is where to put it. If I put this code in any script that executes in the target frame, it works, but only if I hit the nav buttons slowly. If I bang on a single nav button rapidly, getChildByName("rotatorProxy") can return null. I don't know much about how the display list works but I assume the display list is rebuilt after every jump and the frame scripts are executing asynchronously, so it's possible my getChildByName call is executed before the display list is complete. Is there an event or some other handle that would allow me to call my code before the frame is rendered but after the display list is complete?
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Sep 21, 2009
For some reason below is not working. It is probably very obvious but I am not seeing it. As soon as I comment out the container mc variable and just add Child to root timeline I see everything which means me container is not being added to the stage correctly.
stop();
import flash.display.MovieClip;
var i:int = 0;
var a:Number = 10;
var ageString:String;
var ageText:Array = new Array();
[Code] .....
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Mar 3, 2009
I'd like to remove a child of the display list if it exists before adding another to the stage. This gives me Error the first time I call it because 'myMC' doesn't exist.
HTML Code:
function callMc(){
if(myMc) removeChild(myMc);
[Code]....
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Jul 4, 2009
I'm having some problem with the workflow of flash.I make web banners everyday att my work att it is important to me to have the banners easy structured so I can copy effects, tweens and symbols to a new banner. I have Flash CS3 pro.I always start by making a symbols. And then in the symbols own timeline I make the animation or effect.
The big problem I'm having is when I have the main (scene1) timeline with many frames, and then have symbols on that timeline, with it's own timeline with some frames. The frames in the symbol timeline is okey, but at the main timeline the frames is too short or too long so the animation of the symbol cuts of early or it plays more than one time (too many frames).
How do I calculate how long a symbols timeline should be so It maches the main timeline?What happens to me is that I always have to adjust the symbols timeline and the main timeline, and this I have to do many times.
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Sep 19, 2008
The author shows a function that is supposed to trace the contents of any display object. In his example file he has several nested movie clips on the stage and everything works just as it should, this is the code.
ActionScript Code:
function showChildren(dispObj:DisplayObject):void {
for (var i:uint = 0; i < dispObj.numChildren; i++) {
var obj:DisplayObject = dispObj.getChildAt(i)
[code]....
The problem I am having is that when I open a new actionScript 3 .fla and try to recreate the nested movie clips and use the same code I get these errors:
ActionScript Code:
line 3 1061: Call to a possibly undefined method getChildAt through a reference with static type flash.display:DisplayObject.
var obj:DisplayObject = dispObj.getChildAt(i)
line 2 1119: Access of possibly undefined property numChildren through a reference with static type flash.display:DisplayObject.
for(var i:uint = 0; i < dispObj.numChildren; i++){
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May 5, 2009
Sometimes I got
[object MovieClip]
Sometimes I got
[object SomeName]
I don't know why! I never click the "export for actionscript" and the symbol names in my library are given "Onename" "SomeName", rather than "MovieClip" ...
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Oct 21, 2011
I want to know for what reason if i write
ActionScript Code:
addEventListener(Event.ENTER_FRAME, function()
{trace (stage.stageHeight)})
resizing the window dimesnion the trace value remain the same of the original stage dimensions setted into FLA (in my case 800px)
while writing
ActionScript Code:
stage.addEventListener(Event.RERSIZE, function()
{trace (stage.stageHeight)})
it return the REAL actual stage dimension when i resize the window.Why the first code desn't work?
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Jul 11, 2011
I'm new user which is trying to developing simple game..I'm using template to create the game..I just wondering how to insert the symbols within existing timeline..meaning that, i'm trying to create new layer and convert it to symbol but I didn't how to combine it with existing timeline.
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I have limited Flash experience in CS 3 and 4 but I got CS 5 and built an animated movie symbol and I tried everything I could think of but it would not play in the main timeline.To sum it up the animations and tweens work in the symbol but they do not appear in the main timeline.
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In CS5, I want to create a simple series of still images that display in the Timeline for about 5 seconds each. Is there an easy way to do either of the following:
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I am using Adobe Flash Professional CS5, and when I preview my flash animation on the main timeline, symbols with animations in them are stuck on their first frames.
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Apr 8, 2010
this is one of those upsurdly basic questions for which google does not work. I have usually dispatched events from my classes and dealt with the user interface in the document class. But now i want to separate all the UI in a separate class, accessible by other classes. have added it as a child to the main/document class, but how do i reference the main class without going through parent.parent shananigans?dit. one more thing i remembered. Some of my UI elements are not programatically added.here is the code i have. i get possibly undefined property error.
package rpflash.ui {
import flash.display.Sprite;
import flash.display.MovieClip;
[code].....
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Example
Display list:
A (root)
B1
C1
C2
D1
B2
......
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Bottom-up:
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[code]...
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