Flex :: Pass Event Handler To Dynamically Created Object Inside ItemRenderer
May 27, 2011
I have a Tree, which has an itemRenderer. On the itemRenderer, driven by the XML conditions, objects are created dynamically and added as a children to nodes. These new objects shall trigger an event handler ( some click events mostly ). How do I pass the event handler to the tree and later to the dynamically created new objects inside itemRendere?
Something like:
<mx:Tree x="534" y="49" newObjectsOnClick="newObjectsOnClickHandler">
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May 23, 2005
I'm using Flash Remoting to grab a result set from a SQL Server database. Then, using the total records in the result set, I'm creating the respective number of movie clips on the stage. Each of these movie clips is an instance of the "button_mc" movie clip I have in the library, named "button_0", "button_1", ..."button_n". The library movie clip that I'm using to create the instances contains a standard Flash button.
Anyway, that part is working fine. What I want to do is dynamically generate the onRelease event handler for each of these unique buttons. When I try to do this within the for loop, it sets all the event handlers to the last item in the list. What I want to do with the event handler is change the text of a dynamic text field based on the button name.
e.g. buttonName.onRelease = function() {
myDynamicTextField.text = "button_"+i;
}
In some ways it makes sense that the event handler is always going to be the last available in the loop, as the handler is called after the loop is completed. However, I'm hoping there's a way to make the handler "stick" after the loop is completed.
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Jan 15, 2008
I have 3 buttons which will do basically the same thing(2 fade when one is moused over). I have it working but was wondering if there was a cleaner method instead of using a switch function within the handler.
Here's my code:
Code:
btn1_mc.addEventListener(MouseEvent.MOUSE_OVER, menuOver);
[code]....
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Jun 10, 2010
I have an event listener for a custom event type. This custom event overrides the clone method as required.In this event listener I want to dispatch an instance of a different type of event... a different custom event instance altogether. It also overrides the clone method as required.The problem is I'm getting a type coercion error: TypeError: Error #1034: Type Coercion failed: ...I do not know what is trying to do the casting. My code is:
/* elsewhere in a method */
addEventListener(GestureEvent.GESTURE_SCALE, handlePinched);
/* the event handler */
[code].....
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Mar 31, 2009
Ok, I have 2 buttons on the stage. Each button does almost the same thing, so I want to create a single function, and each button calls that same function (we'll name that function "Navigate")... however, the function will need to end up doing something different dependant on which button was clicked.So, previously, in AS2, I would've added some code onto the buttons themselves with on(release) methods, like so:
Code:
// Define the Navigate function
function Navigate(myLabel){
[code].....
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Mar 31, 2009
Trying to migrate my way of thinking from AS2 to CS4/AS3. Ok, I have 2 buttons on the stage. Each button does almost the same thing, so I want to create a single function, and each button calls that same function (we'll name that function "Navigate")... however, the function will need to end up doing something different dependant on which button was clicked. So, previously, in AS2, I would've added some code onto the buttons themselves with on(release) methods (see CODE EXAMPLE 1) So, each button effectively calls the Navigate function, and passes a different frame label to the function. Now, I'm trying to recreate this functionality in AS3. As you all know, on(release) has been done away with (still don't know why), but we now have to use event handlers, so I'm trying to figure out a way to pass a different frame label argument to the Navigate function. Currently I can achieve that by using a switch statement to test which button was clicked, and act accordingly (see CODE EXAMPLE 2).
[Code]...
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Mar 3, 2011
I need to call a component and pass an object. Now I am using event initialize to pass into the method of component but it seem to execute only once as follows. Is there anyway that I can make it call every time it loads.[code]
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May 16, 2005
I'm creating a photo gallery script with 3 categories (people, places, and things). The 3 categories all share the same thumbnail movie clips whose onRelease handlers I want to change depending on whichategory is selected If you look at the newCat() function at the bottom of the script you'll see my comments as to what is happening and when Apparently the event handlers being assigned to the thumbnails are using the local variable 'pict' inside the 'newCat()'function which is being overwritten each time the function goes through a loop? Does anyone know why this is happening or another approach I can take?
Code:
//set up picture categories and file names
people = ['mittens.jpg', 'penny.jpg', 'selfportrait.jpg'];
[code]....
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Aug 6, 2010
Any thoughts on a good way to accomplish something along the lines of
var request:URLRequest = new URLRequest("http://myurl.com");
var loader:URLLoader = new URLLoader();
loader.addEventListener(Event.COMPLETE, function(event:Event):void {
System.setClipboard(loader.data);
});
It seems as if System.setClipboard() isn't available inside an event handler (which makes at least some sense given what I know about Flash security).get it to work? or block on the URL load so that I can then call setClipboard() in the main event flow?
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Jun 1, 2011
Do I need to create all objects which i will possible use with itemRenderer in createChildren function, even if the current item must not show some of them ?
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Jan 24, 2011
I have a spark list control whose data is rendered using an itemrenderer. Basically the Item renderer lays out the data within a Panel.
The Panel has a LinkButton, which when clicked needs to pass an Id to the parent application. In the parent application I have a function that dispatches a custom event to its parent. I want to know how to call this function from the ItemRenderer.
I tried using parentDocument.outerfunction etc but it throws an error..
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Dec 17, 2011
Below is my AS3 code:
[Code]...
If I run add('movie123'). How do I get the string 'movie123' in the enter_frame_handler function? UPDATE This forum post (Click Here) describes the issues I am having but doesn't provide the solution I am looking for. Luckily @kapep provided a simple solution that solved the issue.
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May 5, 2011
I have the following code in a class function :
[Code]...
The above code works most of the time but my concern is what happens if timer gets garbage collected? Is it possible that onTimerComplete will never fire because there are no other references to timer? I know timer has an internal list of handlers but that won't keep it from being GC'ed i think.
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Apr 1, 2012
I'm trying to create a movieclip and load a "frame" image inside of it, then create another movieclip inside of the first, and then load another picture inside of the second. Something like this:
var thumbFrame;
var thumbPicture;
thumbFrame = container_mc.createEmptyMovieClip(thumbFrameName, 1);[code]..........
But it doesn't seem to work the way I want: the "thumbPicture" doesn't appear on top of the "thumbFrame" as I expected... only the "thumbFrame" shows (with it's image succesfully loaded). Am I missing something?
EDIT: If I comment this: //thumbFrame.loadMovie("thumbFrame.png");
The thumbPicture.jpg shows inside of the first movieclip, so maybe the issue is with the .loadMovie?
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Jan 24, 2011
I'm trying to dynamically addChild a Sprite to an already tweened MovieClip (tweened on the Flash timeline).
Let's say ObjectA is the tweened object, I published it in my swc and linked it to my Actionscript project in Flash Builder. I make an instance of ObjectA in my class, and then try to do the following:
var objectA:ObjectA = new ObjectA();
var objectB:ObjectB = new ObjectB();
objectA.addChild(objectB);
addChild(objectA);
Now, the problem is, objectB doesn't tween along with objectA. Is there any logical solution to this?
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Sep 27, 2005
trying to create a menu dynamically from an array. I know there is a way to circumnavigate the issues i am having by making another array with linkNames in it (i think), but im trying to understand why this isnt working. Check this out.
Code:
var playerArray:Array = ["THIERY","FIGO", "RONALDINO", "WAYNE"];
var contents:MovieClip = this.createEmptyMovieClip("contents", this.getNextHighestDepth());[code]....
'currItem.currVar', in my eyes, should be assigned the value of 'i' at that time in the loop, then move on to the next currItem right? Tracing 'currItem' traces 'menuItem. menuItem'+i to the output window fine, so im assuming that currItem is indeed a reference to a unique clip to which assign an action. The catch is, its not assigning the action I want, its assigning the value of 'i' at the end of the loop to all currVar's.I recently read a post explaining this conumdrum, stating that "variables are not "burnt" into functions when they are placed there. They will reflect the variable, where ever it may exist at the time it was requested, not at the time the function using that variable was defined," but in this case,since I am assigning the value of 'i' to anothing variable inside my dynamic movieClip.
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Oct 12, 2005
I have this code inside a for loop which is inside a function:
Code:
_root["track" + i] = new Sound();
_root["track" + i].loadSound(extTracks.data.tracks[i], false);
createOnLoad("track" + i);
[Code]....
When i test the movie in flash itself everything works fine, but when i open the movie in IE or the stand alone flash player, details_txt and length_txt are both empty.
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Oct 8, 2004
does anyone have a tip on how to "bind" events to dynamically created movieclips ?
[Code]...
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Nov 27, 2009
I have this DataGrid:
<mx:DataGrid id="myDataGrid">
<mx:columns>
<mx:DataGridColumn dataField="colA" headerText="Column A:" width="40"
[code].....
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Sep 17, 2009
Im dynamically creating an instance of a movieclip, call it a game piece. This game piece has 4 frames, each with a movieclip called base(although one is red, one blue, one green, one yellow). When the game piece is created I set the frame to indicate player color. Im also changing the alpha of base to 1.0 when its being dragged, 0.5 when its dropped.
Using the following code, everything works fine if the game piece color is set to the base in frame 1 (red). If the game piece is created and the timeline moved to a frame other than 1, I throw an error when trying to access base.alpha (this would be the second, third, and fourth instances of base in the game piece timeline). Heres the strange part, this is only a problem when the game piece is first created and added to the display list. Once created, even after the error has been thrown, I can access the alpha of bases 2, 3, and 4 in the drag start/stop listeners. Heres a link to the work in progress, and the relevant sections of code (shortened for brevity, t1 is the top left piece on the pallet, others just repeat the same code):[URL]
[Code]....
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Mar 17, 2008
I'm having trouble to center any dynamic content (movieclips, textfields...) inside a dynamically created movieclip, which has a default point of interested in the top left corner.
PS: Just as an example, I have a dynamically created text field inside a dynamically created movieclip....and when I try to scale that movieclip I need to scale it from its center
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Aug 8, 2009
i have a movieclip named "mc" and i want to load many images in it and add on press event to those images.
For that, i have a button which is when click adds images to movieclip "mc".
I created empty movie clip in "mc" and loaded that empty movie clip with images. But i m not able to attach on press event to that empty movie clip.
Here is my code:-
In button :-
on(press)
{
_root.fun();
[Code]....
I even tried to add listener to movie clip (commented portion in above code) but that also didnt work.
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Sep 15, 2003
here's my code
createEmptyMovieClip("myMC",0);
// load a jpg
myMC.loadMovie("myImg.jpg")
[code].....
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Sep 1, 2011
I am declaring a variable outside the itemRenderer fx:Script body. However when I am setting it as such in my itemRenderer:est_Var = data.@field_value;It is giving an error "Access of undefined property test_Var"Can I have 2 bodies, one inside the itemrenderer and the usual outside one?
public var test_Var:Number = new Number();
public function useVariableValue():void{
// I will use the variable value in this function..
[code]....
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Apr 2, 2012
I try to make have an EventListener in ItemRenderer but its not working. How to listen to an event inside an ItemRenderer?
----In MainHomeView.mxml----
<fx:Metadata>
[Event(name="myEvent", type="flash.events.Event")]
[Code].....
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Apr 17, 2009
So I have an object, generated on each click of the mouse. It's set up as a series of points with properties, with values for position randomly calculated, and set around where the user clicks the mouse. Lines are drawn from where the mouse is clicked out to each of these points, so it kind of looks like a star, but only lines, rather than a solid shape (like those old 50's atom clocks?). So once clicked there's an enter frame event listener on the object so that each of the points 'wobble' (using a randomly generated number) up and down around the original point.
For some reason, I can either set it so that on each new click of the mouse and newly generated object, the last one stops "wobbling" and only the new one does, or each new object moves to where the new object is, and maybe is still wobbling(?), but is underneath the new object. This way has the event.target as a new object in the wobble function, so I think it may be just a case of where the centre point is - i.e. saving the mouse x and y for each object individually, or perhaps I have too much of the setup function code repeated in my "wobble"function?
[Code]...
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Feb 10, 2011
I've dynamically created event listeners in the usual sort of way:
Code:
myText.addEventListener(MouseEvent.MOUSE_OVER, hover(nameLabel));
function hover(nameLabel):Function
{
[Code].....
The problem is how to remove the event listener later in the program as the usual code isn't working. I'm guessing I should have done this in a class but I'd like to understand this problem better.
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Sep 21, 2009
I'm binding an array of items to a data grid using ItemRenderer. I use the data variable to control the bindable data. I also have someComponentVariable that need be inserted into every row but its declared at the component scope, so the data grid doesn't seem to reconize it (compile error). How can I use this variable (someComponentVariable) inside the ItemRenderer?
[Code]....
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May 17, 2010
I am writing a custom item renderer to render a column series in my application.
Its a stacked chart and i want to use the same item renderer for both the column series. The color for each series in the stack is different and am setting that in the 'fill' property of the two series. My doubt is how can i get the color specified in the fill property of the column series from the item renderer. if this works then i can very well use the same renderer for both series.
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Mar 20, 2010
i have a simple datagrid having 2 columns named as image and place. where image column has mx.controls.Image itemRenderer and place is simple. my requirement is to change itemRenderer of image cell when it will be clicked. i means to say when user click on any image from image column than i want to show that image path in editable mode and when user edit that path then the selected cell will start displayed the updated image.
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