ActionScript 3.0 :: Nested Event Listeners With Custom Events?
May 30, 2009
Here's a hodge-podge of information:
Custom Event Class:
Code:
package com.events {[code]...
I made a custom loader to replace the urlLoader and even tried a replacement for the _loader using the same custom event.Works great for the first addEventListener:
Code:
urlLoader.addEventListener(Event.COMPLETE, onSwfLoaded).But stops on the second addEventListener.If I just apply the custom event to the following...
Code:
_loader.addEventListener(Event.COMPLETE, onLoaderInit);
VERSUS
Code:
_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onLoaderInit);it works just fine.As soon as I use it on the contentLoaderInfo line, it throws that type error cannot convert CustomEvent to Event error.I also double checked that my custom event listener was overriding clone()properly and it looks like it does.
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Similar Posts:
Dec 2, 2005
I have two movie clips. The child movieclip is a button with rollover events which is nested inside the parent. I would like the parent to also have rollover events, but I understand that this is not possible in flash. I am familiar with two workarounds: event bubbling/delegation and the event listeners.
[Code]....
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Jul 13, 2009
I have a base class, and I created a class to connect to C# to which it sends and receives data. Now I want the base class to know when the Connector Class has received data and to get that data. so custom events are the answer right. But no matter how much documentation I've read, I can't get my head around this. My current class, if I extend EventDispatcher the base class can pick up fine but I need it to get the data that it received as well. So I extended Event and I've put a listener on my base class but it's not picking up the event (in fact although it's compiling it seems its breaking my connection to the C# as my C# client gets an error).
Should my connector class be extending Event or EventDispatcher. Then if it extends Event, I need to create another class to dispatch the event? someone said to me I don't need events as the callback will handle it, but my callback is in my connector class not the base class.
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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 16, 2010
I need to make a custom event listener (if that's what they are called) so an event listener can pass arguments. I found something on the internet that worked, but it was using regular events and I needed to use mouse events. So I changed some of the code around and it resulted in me producing something that didn't work. Despite this, it didn't return an errors. I use three files: Untitled, UntitledCode, UntitledCustomClass. Here is the code for all of them: (I have attached the final project)Untitled:
ActionScript Code:
stop();
import UntitledCustomClass;
[code].....
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May 10, 2010
Im am trying to access my event listners in my "menuButn" class from my doc class.
In my main document class i have the following:
Main.as
public function xmlLoaded(event:Event):void {
var menuButn:Class=getDefinitionByName("com.btn.menuBu tn") as Class;
[Code]......
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Jan 21, 2011
I have 3 frames each with a movie clip called map_mc. Each different map_mc have different objects that call the CollisionDetect class. Heres whats happening. objects from frame 1 will start freaking out when I goto frame 2. How do I remove only the event listeners from objects only on frame 1?
I have been trying this.currentFrame but the problem is that all the objects are inside map_mc on the first frame so no matter what it will always be 1. On the other hand MovieClip(root).currentFrame will always give me the current frame but wont tell me what the objects frame is relative to the stage.What I want to do is have something to this effect:MovieClip(root).this.currentFrame would output that this object is on frame 1 and MovieClip(root).currentFrame will tell me that the stage is on frame 2 so I can remove the listeners accordingly.
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Feb 1, 2007
I'm having a problem with a custom subclassed Event class. Or I should say, I'm having trouble receiving events from this custom event class. I'm pretty sure I have everything wired correctly, the event is dispatched properly and my trace shows the Event instance being spawned. However, my eventListener, which is in another class, never fires its handler function.Have any of you run across instances where custom event classes fail to fire? I'm about at my wit's end.
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Nov 14, 2009
I'm trying to create a series of scripts that will create some custom event listeners.
I have three movie clips on my stage. One is a movieclip who's sole function is to hold array's and the event listeners. A second which moves around the screen. And a third that is motionless.
The problem is that the argument I want to test (which activates the custom event) is held within a string.
What I want to know is, how do you test to see if the string argument is true?
Is it something similar to this:
var myCode:String="1<0";if(myCode){
trace('one is smaller than 0'); //Strangely apparently one IS smaller than 0!!!
}
I think I'm going about this in the wrong manner, however this is the only way I can think of this working... (since I need to be able to dynamically create these events)
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Jan 6, 2010
I have multiple items in my app that I would like the user to click on.Some items are completely different classes.The classes dispatch events and then when the events are captured, some modifications are done to the transform properties of a loosely coupled display object.I want two separate classes to dispatch the same type of event, since I already have an image class that draws images based on a given url... I want the classes to dispatch the events, but then I think I want the difference to be detected when the event comes along... i.e., I would like to recognize the 'origin' or 'sub-type' of the event. Some sort of if/then logic would suffice.
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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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Apr 11, 2012
I have a list of buttons:
[Code]...
Container is another movieclip and inside of it are the last 2 buttons. How can I put it in array and have all the same listeners applied to each of them?
[Code]...
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Nov 24, 2011
I have this in my constructor:
[Code]..
The problem is I get Error: Error #2094: Event dispatch recursion overflow. Why does removechild keep getting called if this.parent does not exist? Why doesn't removing event listeners work?
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Sep 3, 2009
Can event listeners only be added to the class which dispatched the event? I ask because I want to have the logic for the listener on the main class, and the action is dispatched on click from a thumb which is instantiated in a scroller class. Kinda like this:
ActionScript Code:
pseudo code:
class main {
main() {
[code]....
This doesn't work. Why can't the main class listen for an event on the thumb class?
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Apr 30, 2009
In my SWF, I have a movie clip that I wish to play itself immediately after the site loads. I have two other movie clips that are required to play once the first movie clip has reached frame 13. This is a function that I would like to repeat, as the first movie clip (followed by the other two) will be required to play the others after certain mouse events within the movie.
PHP Code:
hello_button.addEventListener(MouseEvent.CLICK, click_handler);
function click_handler(event_object:MouseEvent) {
/* Do something with this event */
}
While others import class objects and operate under package headings when describing how to add listeners and send out dispatchers.
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Feb 13, 2010
An odd thing is happening for me, my eventlisteners only fire off once then they seem to stop working.
This thing is a movieclip that slides up the parent movieclip and another movieclip within mc slides it down. They only work once.
ActionScript Code:
slider.up.addEventListener(MouseEvent.MOUSE_UP, activateSlider);
slider.down.addEventListener(MouseEvent.MOUSE_DOWN, activateSlider2);
var frameBoolean:Boolean = false;
[Code].....
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Mar 10, 2012
I know the difference between the two, but I never felt the need to use the bubbling feature. If I want to listen to an event from a deeply nested children, I always use the capture phase. Could someone explain to me why I should rather use bubbling, its advantages, and maybe show me a situation in which bubbling would be the only solution?
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Aug 23, 2011
I load into an empty movieclip (via addChild) a library object (a movieclip of class MyObject that extends the MovieClip class). At some point, from the main I remove this custom movieclip from its parent and I set any reference to null to completely destroy it. The question: what if in the custom movieclip class there are eventListeners? Are them deleted when I destroy the object? Should I write a method to remove them before deleting the object?
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Oct 20, 2011
I'm working on a web app built in Flash AS3. At a high level - the app has a main screen, and several "modal dialog"-type screens that pop-up to manage various user interactions. (This is a similar pattern I use in most of the apps I develop...) Typically - when the user clicks a UI control on the dialog screen (e.g., button, text box, slider bar, etc.) - the main screen needs to react, or manage the consequences. It seems like there are two general ways to handle this: Have the dialog screen dispatch events that the main screen listens for Allow the dialog screen to call functions in the main screen when those controls are clicked (which requires that the dialog screen maintain a reference to the main screen, and that the functions in the main screen are public)
In general - I understand that one of the key benefits of the first method is that the dialog screen isn't so tightly coupled; it's only responsibility is to broadcast the event. This would allow me to more easily use the dialog class in other contexts, or applications. But for many RIAs I develop - a particular screen is SO SPECIFIC to the the application that there's no chance I'd ever reuse it in another application. So, the "easy re-use" benefit is minimal. So - if you eliminate that benefit - which method is actually better? (More performant, less resource-intensive?) For example - if I use events, then Flash needs to manage many listeners for events that may never occur. So - it might be more efficient if the dialog window could call a function in the main screen directly, instead of dispatching an event.
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Feb 20, 2011
I am having the following issue with this navigation I am building. I am trying to build a 3 tear drop down navigation, where each buttons sub menu is placed inside that button. My buttons are actually just movieclips, so I have nested movieclips structured something like this:
Button_1
-> Button_1_1
-> Button_1_2[code]....
Each one of the buttons has their own class with it's event listenerens inside it. What happens now, is that when I click for example Button_1_2_1, I get it's event, but also, the event for Button_1_2 and Button_1. Initially, I fixed this, by attaching the events to a hitArea inside that movieclip, but now I am running into other issues and was wondering if there was a way to turn this off, so if movieclip for Button_1_2_1 is clicked, I only get the event for that one, not it's parents?
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Aug 31, 2005
I'm creating several cutom components. Within each I'm setting up scripted tweens with the Tween class. I have listeners setup within the components to fire internal events. My question is how can one component on the stage listen to the others tween events? Currently I'm setting up internal listeners like so:
MenuListener = new Object();
var easeType = mx.transitions.easing.Regular.easeOut;
ButtonTween = new mx.transitions.Tween(....);
[code]......
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Nov 30, 2010
I'm trying to make a program that grabs info from a text file then uses the info in the file to assign where certain balls will rotate (eventually I'll configure it to looking like dots rotating around an invisible sphere)Now, I can do these two things separately, load info from a file and make blue balls rotate around given points... but I've been tripping up hard on making them work together, and I think my problem is in how I handle the events and events listeners to work with the code, you'll need to start a new flash AS3 file Then on the stage create a circle with the oval tool convert the circle to a symbol named "BlueCircle" and name the linkage class as "BlueCircle" then paste this code...
Code:
var longLatLoader:URLLoader = new URLLoader();
longLatLoader.dataFormat=URLLoaderDataFormat.VARIABLES;
longLatLoader.addEventListener(Event.COMPLETE, onLoaded);[code]....
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Apr 22, 2009
I have a movieclip that contains other movieclips, however the nested movieclips don't seem to detect mouse events.Via searching, I found that only the parent can detect these events, but is there a way to pass the mouse click from the parent movie clip to the children? I want to have a small movieclip. When you rollover it, it scales up, and then you should be able to click other various things on it. When you rollout, it scales back down.If this is not practical, what's the best way to keep a movieclip "attached" to another and scale, without childing them?
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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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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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Mar 31, 2010
I have some nested movieClips. I've got an event listener on the parent listening for a mouse click. Problem is, the listener never picks up the click.[code]On movieClipStack, I can see that mouseEnabled = true. In addition, buttonMode = true works exactly like it's supposed to. But onStackClicked never happens - movieClipStack just isn't detecting any sort of mouse event.
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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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Jun 7, 2011
I have a data grid and there's a method attached to clicking on any item in a row of the grid.Now, some of the items in the table row are also buttons. Each of these are associated with a different action.We only want one of these actions to be performed.[code]we have currently a member variable to track which selection was made and to ignore the the contents of the other method (the else portion of the method resets this value).Now, if the methods just happen to execute in a different order (or at the same time), the behavior will be unpredictable.Is the member variable flag the way to do this (it smells so bad)?
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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].....
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