Actionscript 3 :: React Every Time Some Changes Are Made To Certain Objects - Write Custom Event?
Sep 25, 2011
I want the stage to react every time some changes are made to certain objects. Is there a way to write custom Event? I could of course modify this object, but I would like to know if there is any more OOP way to do it. And events ARE OOP, ain't they?
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Similar Posts:
Sep 14, 2011
I have an object being passed between flash and flex using the a custom event. I am importing a library in flex containing a copy of the object's class. The classes are identical. But when I attempt to access the object in flex I get this error:
TypeError: Error #1034: Type Coercion failed: cannot convert com.cackleberries.data.api::ApiObject$ to com.cackleberries.data.api.ApiObject.
This function is passed into flash as a callback from AIR / flex
public function airEventHandler(type:String, data:Object):void {
switch(type) {
case "air_api_call":
if(data) {
if(data.hasOwnProperty("apiObject"))
[Code] .....
I am getting the error when I pass the apiobject to serverApi.makeApiCall. That function takes a ApiObject as its parameter. Initially, the data object is created with with the apiObject key with a ApiObject as the value (done in flash).
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Sep 21, 2011
I have a base class for buttons which handles button basics like mouse listeners etc.Now I'm trying to extend it to also have the possibility to store an event (yes event, not event type) that is supposed to be dispatched on click.So I have my CustomEvent (extending Event) that I pass into the base class and store it with type Event.Outside, in the event listener I have an event argument typed as CustomEvent.First time I click it works fine and event is CustomEvent traces true in the event handler.But the second time I click, event is CustomEvent traces false and I get the "type coercion failed" error (cannot convert Event to CustomEvent):
Code: TypeError: Error #1034: Type Coercion failed: cannot convert flash.events::Event@29d3b7e1 to com.package.events.CustomEvent.
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at com.package.display.buttons::ButtonBase/onClick()
If I trace event is CustomEvent in the base class before the event is dispatched it always traces true.So it seems something happens to the event in the dispatcher functions, but what boggles me is that the base class always sees the event as CustomEvent while the event listener thinks it is CustomEvent first time only.
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Mar 8, 2009
I'm new to coding in AS3 and is there way to group a couple of files in order for my to minimize the amount of checking the processor needs to do when running a game. Attached is the code. It works but I plan on adding more walls in the future and that may cause a lot of lag.
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Mar 2, 2012
This is NOT duplicate of my earlier post (its is slightly different)But this is similar issue with similar error but its not the same error The error I am getting now is below while dispatching the custom event from my custom component
TypeError: Error #1034: Type Coercion failed: cannot convert events::MapEvent@a74ab51 to flash.events.MouseEvent.
dispatchEvent(new MapEvent(MapEvent.CLICKED_ON_MAP));
Note: The error in my earlier post is giving below error message
Type Coercion failed: cannot convert flash.events::Event@81ecb79 to com.events.ShopEvent
The difference here are two things, the earlier error is while converting flash event to custom event and now this one is while converting custom event to flash event and secondly, I have no clue why it is trying to convert to the mouseevent where I am just dispatching my custom event with proper listeners.
This is my custome event
package events
{
import flash.events.Event;
import ui.map.MapElement;
[code]...
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Dec 28, 2009
Is there a point of creating custom event class if i dont need to pass custom property with that event?
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Mar 25, 2010
Not sure if I phrased that correctly. I have about 6 pieces of illustrator outlined text.imported into flash, set as symbols with event listeners and works fine. but i notice I can only click on the outline itself, if i click on the inside of an "o" or "R" it doesnt work.I added white boxes behind each of the symbols and that fixed the problem, but now i want to do a color transform on the symbol (the text only of course), but when I apply the transform, its the background box and the text that have the new color applied, just leaving me a rectangle. I gave the box an alpha of 0, hoping if i didn't affect the alpha in the transform, the pointer would still read the box, but no go, it doesnt even see the box again.
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Aug 27, 2009
Well this is strange:
ActionScript Code:
var myObject:Object = {firstName:"Alf", age:34, city:"Oslo"};
for (var prop in myObject) {
trace("myObject."+prop+" = "+myObject[prop]);
}
This will output all the properties of the object, but if I make my own class object it doesnt work at all! Simple.as:
[Code]...
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Feb 17, 2006
I'm currently implementing an 'interactive map', and I want the mouse cursor to change (from one to, two, to three arrows custom-made arrows), when the user 'mouses over' certain parts of the map. For example, there is currently 4 x3 grid on the map and when the user mouses over to each of the four corners, the cursor will change to three arrows (which have already been designed), and when the cursor mouses over the grid on the 8th grid on the right, the cursor will change to two arrows..... and so on.
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Jul 14, 2007
I am having an issue getting my custom made classes imported to the flash movie. It seems to ave a problem importing (or using) the class. Here is the as code I am attempting to use to import and call to a function inside of a class:[code]
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Oct 7, 2010
i need to mix two images one photo and a placeholder. The idea is that we see the placeholder except where the palceholder has a particular color, in that case the user sees the photo. Something like chroma key.For this purpose i wrote a Pixel Bender shader that acts as a BlendMode. If the background is in the right color output the pixel image otherwhise output the pixel from the placeholder.
<languageVersion : 1.0;>
kernel Crossfade
< namespace : "mynamesp";
vendor : "Artbits snc";
[code]....
Everything works fine except for the fact that i had multiple placeholder, one over the other and my shader don't check the color of its own placeholder but the color of everything under the photo.Is there a way to force BlendMode to consider only a layer or a specific background color ?Is there a smarter way to obtain the same result ?
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Aug 19, 2009
I have a bit of code that calls a custom class that I made in flash. Basically when you roll over this logo I have a function that makes a new instance of a custom class and calls it to the stage like a little pop-up text when you roll over something. Then when you roll off of it I remove it from the stage. The following code is for the first pop-up text.
[Code]...
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Oct 30, 2009
I'm having issue where the titleBar event listener is override the buttons (i.e. close button) event listener. In my codes, i have a button called close button added to the titleBar. when i try to do the mouse over/out event listener for titleBar and close button, only the titleBar would react. It seems that the event listeners for titleBar are overriding the button event listeners. (Basically i want to change the mouse cursor icon when targeting the title bar and then different mouse cursor icon when targeting the close button)
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Jul 29, 2009
How do I listen to an event dispatched from non-display-list concrete objects which are created by a singleton factory class?
An example would be where I want to create tweens for objects using a TweenFactoryClass. In my Main.as class I have this:
ActionScript Code:
TweenFactoryClass.instance.tweenMe( myClip, 200, 200 );
then, in my TweenFactoryClass.as, I have:
ActionScript Code:
public function tweenMe( clip:DisplayObject, xLocation, yLocation ):MyTween
{
var tween:MyTween = new MyTween();
[Code].....
I don't know where I should add the listener to be able to hear that event that was dispatched from the MyTween class.
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Jun 10, 2011
I have a service which returns an Array of ObjectProxy objects. I would like to cast this to a custom object (a value object) and create an ArrayCollection. How can I do this?ited:I am using Django and PyAMF for the backend. I had to write a custom SQL query and I am wrapping the resulting records in ObjectProxy and sending the whole result as an ArrayCollection.Here is my client side code:
[ArrayElementType("SessionVO")]
[Bindable]
private var _list:ArrayCollection;
[code]....
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Aug 22, 2011
I hava a custom component and it contains a child icon. If I add a mouse-click event listener to both component(click-listener1) and icon(click-listener2), the event dispatched sequence is click-listener2, then click-listener1. I can understand it. But if I add a custom event to component (listener1), and mouse-click event to icon(listener2), when icon is clicked, the component will dispatch the custom event. In my test, the event dispatched sequence is listener1, then listener2. It doesn't match with event-bubbles rule.
In my opinion The custom event is dispatched in listener2, which triggers listener1. Why event flow sequence is not listener2, listener1?
In component.
icon.addEventListener(MouseEvent.CLICK, iconClickHandler);
private function iconClickHandler(event:MouseEvent):void
{
[Code].....
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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 16, 2010
can I programatically detect if a var has been flagged with the built-in metatages such as [Transient] or [Bindable]?
rolling my own metatags? I know the possibility for them exists, but all I can find is either outdated or very vague.
For example, I'd love to make a tag that specifies a var as being [WriteOnce] or can only be modified if the user has a certain [SecurityAccess] or is only set when launched in my [Sandbox].
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Nov 4, 2011
I have the following situation:I have an event handler, that displays small messages in my application's statusbar.These messages get passes through by dispatching events from custom components.A simple message could be like "HTTP Error" or so.Now, the main event listener, in the main application file, listens to the event dispatched by any custom component,but seems to refuse listening to events dispatched by custom AS classes.Here is my code for the custom event:
package main.events
{
import flash.events.Event;[code]..
So to sum it all up:
- The event listener listens to the custom event dispatched by any custom component.
- The event listener does not listen to the custom event duspatched by an AS class.
Those who wonder, the event really gets dispatched, that's why I added a trace call.
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Mar 1, 2003
How would I go about writing code to make a dynamic textfield display the time showing the seconds as they increment and change the minutes/hours dynamically?
The way I know will show the time, but will only change if you refresh the .SWF or go back to the scene with the textfield.
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Aug 25, 2009
i am a bit embarassed to ask this, but i do this so much i have to ask. Occasionally, i need to pass/handle custom events on the fly. Rather than creating a whole custom event class, i will just do something like
Code:
myObject.dispatchEvent(new Event('thisCustomEvent'));
//and then handle it later
[code]....
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Sep 8, 2011
I have a custom Flex 4.5 component (to be used in a List) -
Game.mxml (represents a clickable playing table in a card game):
<?xml version="1.0" encoding="utf-8"?>
<s:ItemRenderer [code].......
But I never see the "game clicked: " trace. Does anybody please know why? I'm probably missing something minor, because I can see the "Clicked: 8946" trace.
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Feb 16, 2012
This is similar to the question asked here. I am dispatching custom event "ShopEvent" but i am getting error "Type Coercion failed: cannot convert flash.events::Event@81ecb79 to com.events.ShopEvent"Note: Error is thrown from the parent custom component (3rd code snippet), I have added more details thereThis is my custom event. See the first constant, I copy pasted the event name in custom components.
package com.events
{
import flash.events.Event;
[code]......
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Jul 7, 2011
I am trying to learn JavaScript and I am wondering whether JavaScript has a event listener just like ActionScript's ENTER_FRAME. Basically, I want this event listener to listen "all the time" not just wait for any particular instance (mouse click, keyboard event) of event.
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Apr 29, 2009
Anyone let me know wether if pixel calculations are made swf files and when they r made to fullscreen wether they will remain the same in any monitor size?
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Apr 12, 2009
I am having trouble using a custom event in flex. I need to dispatch an event from inside two nested components and receive it in the main application file. The basic set up is a main application file importing a custom "gallery" component.
[Code]..
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Dec 8, 2011
In my AIR application, I try to dispatch a custom event from a class to main window.This class is use to call httpservice. My goal is to send a custom window when the httpservice result is send.[code]...
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Dec 2, 2010
How to trigger a custom jQuery event from Flash, passing some data through event object?
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Jan 27, 2012
I am trying to understand event propagation in Flex framework and have a following doubt on it:
Scenario: I have a built-in component DropDownList on change of which I want to create a custom event refreshPreview and want to propagate it to a custom component PictureComponent.
In the custom component's mxml, I have added the Metadata directive as follows to register a refreshPreview event with the compiler
<fx:Metadata>
[Event(name="refreshPreview", type="flash.events.Event")]
</fx:Metadata>
Layout Details: In my main mxml application I have laid out DropDownList and the custom component such that both are siblings (i.e. have a common indirect parent)
e.g.
<s:Group id="contentGroup">
<s:Group id="formGroup">
<s:Form x="11"
[Code]....
I am seeing that the refreshPreview event is not getting propagated to the custom component.
I doubt this is because the built-in component is a sibling of the target (where the event got generated) and not a parent. how to make refreshPreview event propagate to custom component?
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Jan 7, 2010
how to add an event listener to an event from a custom class. Here are the relevent lines of code (I think) from the class:
[Code]....
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