ActionScript 3 :: Flex3 - Carrying Data In Custom Events?
Apr 14, 2010
I am working on actionscript to generate a SWF dynamically using JSON data coming from an HTTP request. I receive the data on creationComplete and try to generate a tree like structure. I don't create the whole tree at the same time. I create 2 levels, level 1 and level 2. My goal is to attach custom events on the panels which represent tree nodes. When users click the panels, it dispatches custom events and try to generate the next level.
So, it goes like this :
On creation complete -> get JSON-> create top tow levels -> click on level 2-> create the level 2 and level 3 -> click on level 3-> create level 3 and 4. and so on and so on. I am attaching my code with this email. How to do this if you need to paint a tree having
total level number = "n" where n = 0 to 100
Should I carry the data around in CustomPageClickEvent class.
[Code]
import com.iwobanas.effects.*;
import flash.events.MouseEvent;
import flash.filters.BitmapFilterQuality;
import flash.filters.BitmapFilterType;
import flash.filters.GradientGlowFilter;
[Code] .....
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Oct 14, 2010
Once a button is clicked in a submenu called SelectChar(a menu class extending my menu base class), it dispatches a custom event carrying an array of variables. This event is then listened for in the main Document Class called Engine, where the value of the passed variable can be used. For testing purposes im only passing 1 arguement in the array.
my Error when trying to trace the passed variable in isolation "trace(e.arg[0]);": 1119: Access of possibly undefined property arg through a reference with static type flash.events:Event.
Okay, i hope that made sense... heres the relevent code:
custom event class: passCharEvent.as
Code: Select allpackage com.asgamer.snipergame
{
import flash.events.Event;
public class passCharEvent extends Event
[Code].....
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//====================================================================================================//
//===================//
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Mar 15, 2010
In Actionscript 3, most events use the capture/target/bubble model, which is pretty popular nowadays:
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May 12, 2011
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Mar 14, 2011
I have this Document class:
ActionScript Code:
package {
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Oct 3, 2009
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Code:
package com.CustomEvents {
import flash.events.Event;
[code]....
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Nov 24, 2009
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Code:
package com
{
import flash.utils.Timer;
[Code].....
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Dec 24, 2009
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May 14, 2009
I'm using the following code to create events my question is how do i create multiple events? I need each event to contain a diffrent data parameter.
PHP Code:
package NetConnections.Call{
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Jul 29, 2009
The fact is that the "dispatchEvent" method must be placed into the code or timeline where the "event" happens, then it can be trigged and the function associated with the event will be invoked. Ok, it is understood. Nevertheless, my question is: what's the point to create an event to trigger the a function call, if I can simply call the function instead directly???
Code:
package{
import flash.events.Event;
public class CustomEvent extends Event{
public static const ONSOMETHING:String = "onSomething";
public function CustomEvent(type:String){
super(type);
[Code] .....
If I can do simply:
Code:
DoIt();
function DoIt(){
trace ("Done!");
}
What I mean is that custom events doesn't look like as REAL events for me, but more like a delegate way to call a function. Differently from Flash native events that are controlled by an internal engine that keep checking if the event happened, in the custom events they must triggered 'manually', and it seems to lose the event main characteristic.
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Apr 15, 2012
I'm trapping keyboard events on the stage and dispatching custom events through a framework (Mate, though I don't know that this is an important issue), but I'm pretty confused by the scope. The structure is:application (traps keyboard events and dispatches custom event mainPanel (receives dispatched events but mainCalendar (a child element) is null on debugging. Obviously if I try to call a public method on mainCalendar it errors out, even though it's a child of mainPanel. However, mainCalendar is NOT null IF I use FlexGlobals.topLevelApplication.mainPanel.mainCalendar. Outerdocument and parentDocument do not expose mainCalendar either, BTW mainCalendar (a custom component inside mainPanel with public methods. Creation policy is 'all' and it's visible and exists long before I trap any keystrokes at the top level)Could someone take a minute and explain why the mainCalendar is out of scope when mainPanel receives a custom event, even though mainCalendar is a child of mainPanel. Is there a better way to manage the events so I don't have to always address the component via the topLevelApplication?
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Jan 4, 2010
I have written a custom component for drawing a circle in Flex. But When I try to write a click event or mouseDown event for that component, it doesn't work.[code]...
The "Hello" Alert is displayed only at a particular point and guess is, at the point, (175,150) the x, y co-ordinates of the circle. But shouldn't it be displayed wherever I click on the MyCircle component?? how to enable it in that way?
Also the mouseDown function doesn't work for MyCircle,but if have the event for the VBox, the Alerts are displayed.
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Nov 30, 2010
We are building an interface for a game. The interface has a tabbed menu at the bottom of the screen, with each tab displaying different aspects of an object (called a node). When you click on one of these parts, it becomes the focus, and we download it's details in XML, including all it's sub-nodes and parent nodes and then update the tab display accordingly, or at least that's what we'd like to happen.
What we have:
MainInterface.mxml
<s:Application...
<fx:Script>
<![CDATA[
public var currentNode:Node = new Node();
[Code] .....
We tried adding an event listener for "selectNode" to the dashBoard:SkinnableContainer you see see above, but it didn't seem to want to take. We suspect this is because dashBoard is from a spark component and the dispatcher for "selectNode" is on of our own custom components, but we weren't sure... in any case that's what the code assist seemed to indicate as we had to write it in by hand. We're not sure how to pick up the Events in FlashBuilder 4's debugger, so we're having trouble working out where it's going wrong.
Basically, when someone clicks on the label of a child or parent node (that is displayed by the itemRenderer), we want a URLRequest sent to our website, with the url specific to the node clicked on. We then want a URLLoader listening for the return which will update public variable 'currentNode' when xmlDownloaded is called by the loader. If you could clarify how the click event should be dispatched, what should be listening for it then sending the URLRequest and where the URLLoader that is listening for the xml data to return should be that would solve our problems.
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Aug 2, 2011
Basically I am trying to create a string Validator which requests a new language from its controller by dispatching an event upon its creation.
The example below is a straight copy from the Flex3 component explorer - the only diffrence being that I have created the validator as a custom component which dispatches an event upon its creation.
The problem is that my main Application cannot hear the event being dispatched and I don't know why.
Here is the example
MyValidator.as
package components
{
import flash.events.Event;
[Code]...
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Jan 23, 2012
I'm using ActionScript 3 in Flash Professional and I'd like my class to raise an event, not a custom event but an existing one. I've set up my class so that it extends EventDispatcher. In the documentation [URL] the example declares a custom event by adding a static String variable:
class CustomDispatcher extends EventDispatcher {
public static var ACTION:String = "action";
I assume that enables:
dispatcher.addEventListener(CustomDispatcher.ACTION, actionHandler);
Or at least auto-complete when you've typed 'dispatcher.addEventListener(' into the Flash Professional IDE.
But lots of classes that raise events raise a mixture of existing noncustom events. For example if you have an instance of a flash.netFileReference and type
fileRef.addEventListener(
A long list of potential events to listen for is given including DataEvent.UPLOAD_COMPLETE_DATA, Event.SELECT, HTTPStatusEvent.HTTP_STATUS, SecurityErrorEvent.SECURITY_ERROR, etc.
If I want my class to be registered to raise those existing events, what code do I need? Preferably so that the IDE knows instances of my class may raise the event and suggests them in the addEventListener auto-complete/intellisense list.
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Feb 3, 2009
I'm working on a project in flex and I have a few questions pertaining to performance. First off I know that I cannot write multi threaded programs but I understand the internals of the flash player are multithreaded1. when i call ActionScript Code:loaderObj.load(new URLRequest("ljdsfglsdhflsd")); will flash player make a new thread for that?2. I am also interested in making a custom Event class will the listener (which i assume is a loop that runs once per frame or more) run in a different thread. I want to minimize CPU usage as much as possible in areas I can.
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