ActionScript 3.0 :: Casting Object Into Array Results In Null Array?
Jun 18, 2009
I am trying to use the following code to convert an object read in from a ByteArray to an Array and store it:
var data:Object = ba.readObject();
var invObjects:Array = data as Array;
In debugging, I find that 'data' is indeed populated with the correct data and takes up memory and is in an Array friendly format. However, invObjects is NULL. How does merely saying 'data as Array' make the holding variable suddenly null?
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Mar 6, 2012
When you cast null to an object using Object(null), the result is an object.When you cast undefined to an object using Object(undefined), the result is an object.But saying null as Object or undefined as Object remains null.Why is this? I can't find anything in the documentation about this.
The objects that result from these casts can have properties set on and read from them. It's as if the cast created information, or removed whatever special information the null and undefined values have. But there's no indication in the AS3 documentation that the null and undefined special types are actually objects.
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May 3, 2010
I am trying to create a custom object in AS3 to pass information to and from a server, which in this case will be Red5. In the below screenshots you will see that I am able to send a request for an object from as3, and receive it successfully from the java server. However, when I try to cast the received object to my defined objectType using 'as', it takes the value of null. It is my understanding that that when using "as" you're checking to see if your variable is a member of the specified data type. If the variable is not, then null will be returned.
This screenshot illustrates that I am have successfully received my object 'o' from red5 and I am just about to cast it to the (supposedly) identical datatype testObject of LobbyData:
[Code]...
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Apr 1, 2009
I'm having trouble with my code. I keep getting this error
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at Test_fla::MainTimeline/frame1()
I believe it has something to do with the array, considering it works when I remove the array stuff. What I'm trying to do is to be able to move objects through an array with my gravitate() function in the Grav Class.
stage.addEventListener(Event.ENTER_FRAME,onLoop, false, 0, true);
for(var i:uint=0; i < numParticles; i++){
var p:Grav = new Grav(5, 0xff0000, Math.random()*250, Math.random()*250);
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//for(var i:uint=0; i < numParticles; i++){
//particles[i].gravitate(1,1);
//}}
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Sep 20, 2011
I have what I think should be a very simple problem. I have an array and can access an element of it like this:
var test = finalArray[0];
Will be a number between 1 and 7
say this will trace a number.No there is a movieclip on the root of stage whose name is a letter (always the same, say "R") and whatever the number is. I'm trying to get this movieclip to gotoAndStop at the frame corresponding to the number that is test. However this isn't working:
"R"+[test as MovieClip.gotoAndStop(test)];
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Nov 8, 2011
i have this method:
private function findConnectedNodes(node:Node):Array{
var test_node:Node;
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[code]......
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Feb 12, 2012
We are supposed to build a game, and each of us is to make a level. So we did, but integrating them is giving me issues. Specifically, each of our levels are contained within a symbol. I personally have a ton of symbols that point to eachother already (main.as, menu with various elements, level one, boss level) but for whatever reason whenever I try and addChild my partner's level it gives me "TypeError: Error #1009: Cannot access a property or method of a null object reference."
the way I've been doing it looks like:
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like I said, it's worked every time Ive used it between my own things. My partner's is a no-go. If I just slap his level on the stage and go it runs fine, and it will properly add/remove child to transition to one of my levels.
All I can think of is that I've checked all the names. I also noticed my partner didn't use an ADDED_TO_STAGE event listener, but adding that didn't help at all.
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Oct 28, 2011
I'm having a casting issue that I am hoping to resolve. I have 2 arrays:
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When I trace the results, I can see the clip and the clip's parent, they exist on the stage and are qualified. When I try and get the clip by name in part 3, I get an Error #1009.
Can someone lend insight into what I'm doing wrong, or suggest a better way of doing what I'm trying to do?
[Code]...
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Dec 18, 2009
In actionscript 2 I was able to make indexed associative arrays. Ex:
var arr:Object = new Object();
arr[0] = {var1:"one", var2:"two"}
arr[1] = {var1:"a", var2:"b"}
In actionscript 3 I cant seem to do this.I get the error below.TypeError: Error #1009: Cannot access a property or method of a null object reference.
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Jul 13, 2010
I am curious if this is an okay implementation of the Array.filter() method.
[Code]...
I was not able to figure out an implementation of the callback function for the filter() method, where the callback was outside of the getGallery() function. I wonder if there is a way to get the isGallery function outside of the getGallery scope?
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May 31, 2011
I searched the whole internet and I could not find a solution for this.I'm trying to load XML, parse values into global array, and use that global array later in my code... this is not working.
_global.autoid=Array();
function ParsingXML(){
var pokXML:XML = new XML();
[code]......
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Jan 22, 2010
I have a function that returns an array of search results. I have a limit of 7 per page. When they hit 'next' I want to show the next 7 results in the array. How can I do this?
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May 31, 2011
I'm new in flash scripting and this is driving me crazy I searched the whole internet and I could not find a solution for this. I'm trying to load XML, parse values into global array, and use that global array later in my code... this is not working.
[Code]...
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Mar 2, 2005
How can I limit the amount of records in an array to be displayed?Then when you click on a "Next" button go to the next 6?[code]This is a more EXACT explanation of what I need to do which is continued from this thread, which i will delete to not clutter the forums.URL...
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Jan 15, 2008
how can you randomize the results of an array in a for loop?
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Jul 7, 2010
I have been trying for an hour to clone an array, It seems that nobody has a true reference on how to do it. Two arrays - movieClipArray 1 and movieClipArray2 I want to duplicate movieClipArray1 entirely so that when I addChild(movieClipArray2[0]), it doesn't take away from movieClipArray1 or reference it in any way.
[Code]...
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Sep 22, 2010
How do I get the following to weight the randomize results 3 to 1 (or 4 to 1) in favor of the Dog?
ActionScript Code:
var animalArray:Array=new Array("Cat","Dog","Hen","Bird");
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May 5, 2010
I am trying to create an array (1-35), mix that array and display the results with a trace. I am getting an error with the following code.
public function generateArray(toNumber : int) : Array {
var result : Array = [];
for (var i : int = toNumber;
i != 0; i--) {
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[Code] .....
The error(s) are:
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1120: Access of undefined property generateArrays.
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May 21, 2010
I am producing an array of numbers 1-25, shuffling and tracing the output. When I 'Test Movie' I am not getting the expected results. What I get is something like this.
[Code]...
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Feb 14, 2012
I have an embedded xml file which I'd like to have a property like this:
<level missions="[m1,m2,m3,m4,m5]"/>
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I tried Array(xml.levels.level.@missions)[0], but to no avail :)
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Aug 27, 2009
I am currently in the process of making an image gallery at university over the period of the semester. Eventually it will be able to search through flikr and pull thumbnails from there but for now we are just getting the fundamentals working. Last weeks task was to have the int amount of thumbnails show up depending on the number u placed in the search field.
So in other words i type in 3 in the search field, and 3 placeholder images show up. The problem is having to remove them from the stage and the array so that when u type in 2 or 1 after having typed 3, that it erases the last search results from the array and the stage. This is my code below which half works. It will place however many images you tell it to, but will not erase them next time u press search.
[Code].....
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Jun 17, 2005
Have a quick question, have a xml file like that:
[Code]....
I'm using the xml connector to retrieve the results then bound the items array to the dataprovider No problem to access the items but my question is how to access to var1 and var2 in actionscript. Could i bound it to a var?
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Jan 31, 2012
[Code]...
so the problem is I can print the array but how to cast tht array to a known php type? After 5 days I finnaly figured out flex and mysql using amfphp
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Nov 12, 2009
I have a class in which I have declared an array. The functions in that class are designed to make changes to the array, but it's not working:
[Code]...
Anything I do to customerCheck treats it as if it were a new array. This is especially obvious when using customerCheck.push in addCharToCheck() -- the trace always shows a blank array before push and an array with one object in it after the push... then next time it does the same. I know I'm making some sort of fundamental error regarding the scope of the array within the class but I just cannot find any good information on how to fix it! Moving to AS3 (been coding it for all of about 3 weeks) is a nightmare so far, and it seems to be the 'easy' stuff that causes me problems
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Jul 15, 2010
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facade.registerMediator(new NavPageMediator(viewComponent));
I'm trying to retrieve that mediator on another page like so:
var navPageMediator:NavPageMediator = facade.retrieveMediator(NavPageMediator.NAME) as NavPageMediator;
However, that statement returns null. If I try to cast it using the NavPageMediator(facade.retrieveMediator(NavPageMediator.NAME)) syntax instead, I get a TypeError: Error #1034: Type Coercion failed: cannot convert com.website.mvc.view.page::NavPageMediator@237560a1 to com.website.mvc.view.page.NavPageMediator.`
I can't, for the life of me, understand why NavPageMediator@237560a1 would be unable to convert to NavPageMediator, nor what happened in between registering the mediator and retrieving it that caused this. Especially since trace(new NavPageMediator() as NavPageMediator); returns [object NavPageMediator].
Incidentally, and this may be part of my problem, I don't understand what the @hash at the end of the object is (@237560a1). Is it simply an internal identifier for that class instance?
Edit:Left a bit of important info: The SWF in which I instantiate and register the mediator is separate from the SWF in which I try to retrieve it.
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Feb 2, 2009
how can i clear or null out an array. i understand that pop() and shift() will remove the first or last entry but how can i clear the entire thing
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Aug 6, 2010
This picture gallery adds children. It does what it needs to, but throws a #2007 error.
//Picture Gallery
var um0:MovieClip = new z0;
var um1:MovieClip = new z1;
var um2:MovieClip = new z2;
var um3:MovieClip = new z3;
[Code] .....
ERROR
TypeError: Error #2007: Parameter child must be non-null
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Mar 16, 2012
I was wondering what the 0x0 in byteArray.writeByte(0x0) means?
Is it writing a null value into the byte array?
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Jul 25, 2010
ActionScript Code:
public function draw():Card{
return deck.pop(); //deck = array of Card
}
Does not work. Firstly it runs an error which says
"cannot convert [] to Card"...
Shouldn't it pop() return just ONE element?
Then I correct like this
ActionScript Code:
public function draw():Card{
return deck.pop() as Card;
//deck = array of Card
}
And now I get no errors but the function returns null.... why? If I try this:
ActionScript Code:
public function draw():void{
trace(deck.pop());
//deck = array of Card
}
It prints [Object Card] which is how it should be ....
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Apr 15, 2012
I am using the code below and when I "trace(TheVar);" it is coming out null.
var TheVar:MovieClip;
var myArray:Array = ["TheContent", "TheContent2"];
function RandomM()
{
[Code].....
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