Flash :: How Are Events Dispatched In As3
Jul 25, 2011
i am having trouble understanding how to dispatch events and where to catch them. currently i have a document class waterMain, and another class called gunner. my waterMain createds a object of gunner and adds it as child, in my gunner there is a function firebullet, in it i dispatch a
dispatchEvent(new Event("bulletFired"));
and from my waterMain class i do a
addEventListener("bulletFired", bulletFiredHandler);
private function bulletFiredHandler(e:Event):void
{
hudMenu.reduceBullet();
}
the hudMenu is a variable on the waterMain document class, however it seems that nothing is happening. is the waterMain class not catching the dispatched event?
package
{
import flash.display.MovieClip;
import flash.display.Stage;
[Code].....
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Dec 30, 2011
I am an AS3 code developer but this time I need to deal with a FLA that has an instance on timeline with complex nesting of movieclips and textfields (that are named via the instance field in Flash). The problem is that events (I put in the Documentclass) on nested movieclips inside that timeline placed instance are never dispatched.
Example code:
// my instance on Stage in all Frames of the timeline
public var thewall:MovieClip;
// event directly on thewall works
// the event is dispatched correctly
thewall.addEventListener(MouseEvent.CLICK,click);
[Code] .....
How do I have to access them to get the Events dispatched?
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Jul 29, 2010
I have a text area on which I would like to listen to change events when I change the text formatting using setFormatOfRange(). So far all other events I have tried, such as Event.CHANGE or TextOperationEvent.CHANGE are only dispatched when the actual text is changed.
Anyone know what I should be listening for ?
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Apr 7, 2009
I have two classes, classA and classB
classA is created on the maintimeline
var myClass:ClassA = new ClassA();
addChild(myClass);
one of the methods dispatches an event
dispatchEvent(new Event("createdIt")
How do I create an eventListener for this event in classB?
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Oct 5, 2010
I'm using an accordion container that has it's creation policy set to auto. One of the accordion's children is a spark border container that has a data grid within it. Currently, I'm using the data grid's creationComplete property to call a function; similarly, I'm using the dragComplete property to call another function.
How can I add listeners for events (creationComplete & dragComplete) via actionscript? The obvious problem is that the accordion does not create all its children on creation (nor do I want it to), so I can't simply use something like: datagrid.addEventListener(...)
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Oct 3, 2009
I have a module, which is a simple swf file to load.
Inside there, in a modules document class I have a code like:
ActionScript Code:
buttonMode = true;
useHandCursor = true;
[Code]....
When I load the module, I can see the drawn background with proper sizes. However, the cursor is not hand (useHandCursor) and mouse events are not dispatched. They are only dispatched on some children of the document class, not on itself, on its own background. ANd the hand cursor is only over the children, not over the document class' background itself again.
The document class of the module extends Sprite.
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Dec 29, 2011
I am an AS3 code developer but this time I need to deal with a FLA that has an instance on timeline with complex nesting of movieclips and textfields (that are named via the instance field in Flash). The problem is that events (I put in the Documentclass) on nested movieclips inside that timeline placed instance are never dispatched.
example code:
// my instance on Stage in all Frames of the timeline
public var thewall:MovieClip;
// event directly on thewall works
[Code].....
View 1 Replies
Dec 29, 2011
I am an AS3 code developer but this time I need to deal with a FLA that has an instance on timeline with complex nesting of movieclips and textfields (that are named via the instance field in Flash). The problem is that events (I put in the Documentclass) on nested movieclips inside that timeline placed instance are never dispatched. example code:
Code:
// my instance on Stage in all Frames of the timeline
public var thewall:MovieClip;
[code]....
View 3 Replies
Feb 2, 2010
I have a main class which listens for an event dispatched from another class say class A. Also there are other classes say class B, class C etc.There is a controller class.Classes B, C dispatches events that gets listened by the controller and works well.But the events dispatched by the Class A doesn't get listened by the main class.What might be the problem. Detailed Explanation of the problem.There is a main mxml file.
Class files are in:
ProcessInput.as
DBController.as
ShortMemDB.as ....etc
The main mxml file gets the input from a textArea. Sends the input to the capturedInput (input:String) function using set method which is in the ProcessInput Class.Now I need to dispatch events NORMAL, COMMAND depending on the input obtained after the processing, where I'm having problems. The reason is that if the event NORMAL is dispatched a particular function inside the DBController is to be called. If COMMAND event is dispatched then I need to call another function. This idea doesn't work since the events doesn't get listened.But the events dispatched by the CSDB class when listened by the DBController works well.
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Mar 27, 2012
iam making a game and i almost finish except one error i couln.t get it
TypeError: Error #1034: Type Coercion failed: cannot convert flash.events::Event@3738fb79 to flash.events.MouseEvent.
TypeError: Error #1034: Type Coercion failed: cannot convert flash.events::Event@3738fb79 to flash.events.MouseEvent.
[code]....
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May 21, 2010
My code seems to be hearing a MOUSE_MOVE event when you click outside of the Flash stage (anywhere else on the page).
I have one listener for MOUSE_LEAVE (stage), which hides some overlay controls after a 500ms interval, and another (MOUSE_MOVE) to show them again when you move back over the stage. Yet the controls show again when I click anywhere outside of the stage.
I suppose I could add a Boolean for whether the mouse is over or outside of the stage (since I'm tracking that anyway), and *not* show the controls if its outside, but is there something else I'm overlooking?
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Dec 18, 2011
When I placed this AddEventListener I got this "Type Coercion failed message"
addEventListener(Event.ENTER_FRAME,onEnterFrm);
Located above the mouse event:
addEventListener(Event.ENTER_FRAME,onEnterFrm);
[code]....
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Jul 1, 2011
I try to dispatch an error event in an AS3 application:dispatchEvent( new ErrorEvent( ErrorEvent.ERROR, false, false, "my error message"));but I get the following runtime error:
TypeError: Error #1034: Type Coercion failed: cannot convert flash.events::ErrorEvent@2c04239 to com.adobe.protocols.dict.events.ErrorEvent.at flash.events::EventDispatcher/dispatchEventFunction()at flash.events::EventDispatcher/dispatchEvent()at my line of code..
[Code]...
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Dec 27, 2010
I am really confused at the moment, need help using the accelerometer class and event with AIR 2.5 on mobile devices (Android). I have looked at many sources and the process is fairly easy. I just don't understand why my event is not being fired in both of my devices i'm using for testing. This being the first time I actually decided to test out the AccelerometerEvent, resulted in a total Fail.
[Code]...
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Dec 15, 2010
I have a strange problem: i assigned the following variable: public static const SERIES:String = "series"; then in the same class i have the following function:
[Code]...
Now for some reason the event does not get dispatched, the traces i placed before and after the dispatchevent both get triggered. why the dispatchevent doesnt work?
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Jan 29, 2010
I have an application which uses web services. One day when everything was working fine,suddenly no web services were getting called.I went on debugging the code.After spending almost an hour i figured out that wsdlLoadEvent of WebService class was not getting dispatched. It is the same event in which webservice gets ready (ready property of a web service is set to true) to be called.So none of my web services were getting called. I don't know how this happened.
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Aug 19, 2010
I'm getting this weird glitch where the added_to_stage event seems to be dispatched twice when I construct my object.Now I know that my constructor is not being called twice cause I traced a string before the event listener, and it only traces once but I traced the same string within the listener handling function body and it traced twice.
Here's the code:
Code:
package com.berubegraphics.martinemartell
{
import flash.display.MovieClip;
import flash.display.Sprite;
[code]....
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Jul 22, 2009
I'm testing some event dispatch code in a Flex app, using FlexUnit's addAsync method for testing that events are dispatched. Great so far, I can ensure that at least one event was fired. However, I want to be a bit more detailed; I want to ensure that exactly the set of events I'm expecting are dispatched. Is there a useful test pattern (or, even, different test framework -- I'm flexible!) to accomplish this?I tried this code, but it doesn't seem to get invoked the second time:[code]
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Feb 6, 2010
I have a function called DrawPlaybook which listens to two events, one mouseclick event and one custom event.
public function DrawPlaybook(...):void
{
panel.addEventListener(MouseEvent.CLICK,[code].....
I am planning to call the custom event from within "onClickHandler" like this:
public function onClickHandler(e:MouseEvent,panel):void {
var eventObj:CustomPageClickEvent = new CustomPageClickEvent("panelClicked");
eventObj.panelClicked = panel;[code].....
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Apr 22, 2011
I have this slight problem with the event ADDED_TO_STAGE. The listener is launched twice so I figured the event is dispatched twice.
Here is my .fla code :
Code:
var section:SectionStructure = new SectionStructure("xml/list.xml")
addChild(section)
the SectionStructure code :
[Code].....
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Feb 24, 2012
Let's say you have a guestbook in where you constantly update the data pulled from a .txt file, but when someone posts a comment and press the SUBMIT button, you'd like that the data is updated at that moment to make it display faster, but since an already dispatched event is coming to update the data of your guestbook WITHOUT the newly posted comment, a flicker might occur, so you would then like to stop that data from being transferred to your Flash file and rather dispatch a new event to load new data with your recently posted comment. Or maybe you just want to know how to stop an event from any class, either way, you've come to the right place.
Let's use that guestbook as our example. Instead of using an onEnterFrame to constantly update the data, I'd use LoadVars' onData event to retrieve the data, but when that data has been transferred, dispatch another onData event, and make this keep going in a loop:
ActionScript Code:
function updateGuestbook(){
loadData = new LoadVars();
loadData.onData = function(data){
[code]...
and then I have this button to submit my comment to the guestbook (keeping it simple):
ActionScript Code:
submit_btn.onRelease = function(){
loadVariablesNum("somefile.php", 0, "POST");
updateGuestbook();
}
so I call the updateGuestbook function, which will fire another event to load new data, but another event has probably already been fired off already with the old data, and this will cause the guestbook to nudge a bit, flicker, if you know what I mean, because first the old data will load, then right after that, a few milliseconds later, the new data will load, and this will be visible to the eye, and will probably not look good.What you can do, is to stop the previous event, delete it, to stop its data from being received by Flash. To do this, simply use this:
ActionScript Code:
delete loadData.onData;
to delete that event, just as simple as that.
ActionScript Code:
submit_btn.onRelease = function(){
loadVariablesNum("somefile.php", 0, "POST");
[code]...
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Nov 17, 2010
How would I check if an event has already been dispatched or not?
Is it as simple as checking the "target" property if it's null or not? Or are there cases when the target will be null, but it still has already been dispatched?
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Apr 22, 2011
I have this slight problem with the event ADDED_TO_STAGE. The listener is launched twice so I figured the event is dispatched twice.
Here is my .fla code :
var section:SectionStructure = new SectionStructure("xml/list.xml")
addChild(section)
The Section Structure code :
[...]
mainHolder = new MovieClip;
mainHolder.addEventListener(Event.ADDED_TO_STAGE, displayObjects);
addChild(mainHolder);
} private function displayObjects(pEvent:Event):void {
mainHolder.addChild(sectionMenu);
}
[Code] .....
The output panel displays "test A" once and "test B" twice. I fixed the problem by adding this little line on the opening of the function createButtons :
menuHolder.removeEventListener(Event.ADDED_TO_STAGE, createButtons);
I read here and there that the event ADDED_TO_STAGE is dispatched when children are added but my problem remains even when I comment everything below this line :
trace("test B");
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Sep 2, 2010
Is there a way how to check if UPLOAD_COMPLETE_DATA event was not dispatched after COMPLETE in Flash?
I'm working on file uploader. It uploads file after file - after COMPLETE next file starts uploading - this is repeated for every file. On last file on COMPLETE if there is no next file allCompleteHandler is dispatched and if some errors occurs it shows that errors at once trough javascript to the user.
I handle that errors in javascript - it stores every error to variable in javascript and after all completed it shows that errors.
[Code]...
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Sep 22, 2010
I've successfully integrated SWFAddress deep linking on a site I'm working on. However I'm having a problem whereby SWFAddress CHANGE event isn't dispatched when you click an anchor tag in the htmlText of a textField. The browsers address bar is successfully updated, just no CHANGE event.
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Oct 18, 2009
I'm having trouble getting a custom event to fire properly.I have a main class which creates a dynamic textbox (using a custom textfield class (see below)).Another class called book (and extends sprite) , has a method called updateBox() which I want at runtime to update the textbox with some data sent by my custom event which the book class dispatches.The problem is that when the event is dispatched (and I see in the debugger that it does reach the dispatch line) the listener never fires...i.e., the updateText function is never reached, and hence the text box is created and assigned the INIT value but is never updated again..
Here is a scaled down version of my code:
Main Class:
ActionScript Code:
package {
import flash.display.Sprite;
[code]....
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Jan 11, 2012
Just wanted to ask if there is any advantage for either using mouse click event or touch tap events, when writing apps for mobiles or tablets (for the iphone especially)?
I know that both of them should work fine, but in term of performance, is anyone better? Are there any things I should be aware of when choosing either?
By the way am using actionscript3 to implement the app.
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Sep 30, 2009
I have an animation that I want to start when clicking on the flash window. However, I've also have some buttons on the stage. If I add an event listener for MouseEvent.CLICK on the stage, then it 'eats up' the events and the buttons don't work.
I've tried some tricks, by adding some invisible buttons on top of the real ones, and use the MOUSE_OVER event to selectively enable/disable the mouseEnabled flag for the stage, but didn't work because it complains that the property or method doesn't exist (which I find odd).
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Feb 21, 2012
I've been experimenting with writing my first custom event So I have a MovieClip class in the library called "Curtains". It plays an animation and at the end of the animation I have the
code:
stop();
dispatchEvent(new Event("closed"));
[code]........
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Nov 30, 2009
I am trying to determine what events I need to wait for in a test in order to ensure that my custom component has updated all of its properties. I was using VALUE_COMMIT, but for some reason that isn't working out for me. I want some easy mechanism for tracing every event dispatched from a component. Is this possible?
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