Flex :: Parent Not Executing Child's Function
Jun 7, 2011
I have a main.mxml, child.mxml and headermenu.mxml. I click a button on the headermenu that dispatches an event up to the main.mxml which then executes a method in child.mxml. I know this works because I put an AlertDialog in the function I'm calling inside of the child.mxml. The child.mxml contains a drawingArea object that has an erase(). When I call this directly from child.xml it executes, however if I put drawingArea.erase() inside of the function being called by child's parent (main.mxml) nothing happens.[code]...
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Jun 11, 2010
I have this movieClip "Container" and within it on two different frames I have two movieClip/buttons, "pause_btn" and "play_btn", respectively. I would like to call a function on the main timeline on frame two of "Container" where "play_btn" is located.
I think I'm getting close but really have no idea. I know about the visible property and have been considering that, but isn't there a way to call a parent function from within a child movie clip? The code looks like this.
[Code]...
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Jun 1, 2011
Is it possible to call a child function from within the parent? I know to go child > parent, you can do parentApplication.functionName(parameters);, but what about going the other way... that is parent > child?
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Jun 21, 2011
If I need to call a specific function in the parent application from a child in a flex project, what's the best practice for this? Would it be to dispatch a custom event from the child and have a listener call that function? Or to directly call the function with FlexGlobals.topLevelApplication?
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Jul 29, 2011
I got a Parent Sprite, let's name it SpriteP, which holds inside it two other Sprites. Sprite1 and Sprite2.[code]Sprite2 is a rectangle. When I rotate it, of course, the height of its parent, SpriteP, GROWS. But I would expect that height to go back to what it should be when I'm removing Sprite2!And it does! If I remove Sprite2 while NOT being rotated, the height of the parent drops back to normal, 200.
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Jun 6, 2011
i am slightly confused about the parent and child relationship. lets assume we have several different instances, what would be difference of adding them all as children of the stage and creating a parent-child hierarchy between them(other than the access path).
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Jul 29, 2011
I got a Parent Sprite, let's name it SpriteP, which holds inside it two other Sprites. Sprite1 and Sprite2.
When Sprite2 is NOT rotated:
Code:
trace(SpriteP.width + ' ' + SpriteP.height); //100 250.
SpriteP.removeChild(Sprite2)
trace(SpriteP.width + ' ' + SpriteP.height); //100 200. -> works, 200 is good.
When Sprite2 is rotated at 90:
[Code].....
And it does! If I remove Sprite2 while NOT being rotated, the height of the parent drops back to normal, 200. But if I rotate Sprite2, the Parent won't update its bounds.
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Mar 7, 2009
I have a function (let's call it testFunction for right now ) on the actions layer in the main timeline There is a movie clip with 15 frames long in the library
i want to add a child of the movie clip on the stage, and call testFunction when it finishes playing
how can i do? i tried to call it in the child but nothing works
Or, is there any way to show child on the stage for only a period of time like 1 second and then remove it automaticly?
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Jun 22, 2009
I have a function in a child that I need to have executed by the parent but I can't get it to work. Does anyone know how to call the function in a child from a parent?
What I'm doing is having the parent load a few buttons and I want to re-use the button swf, but have the parent provide the text for the button.[code]...
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May 23, 2011
May i know how to call child function(layer 2) in parent(layer 1)?
Layer 1 (Parent)
function changeAction():void{
changeColor();
}
This method will give me the error -> Call to a possibly undefined method changeColor.
Layer 2 (Child)
function changeColor():void{
trace("success");
}
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Dec 22, 2008
I have to access a function in child swf from parent swf. This child swf gets loaded into a canvas object in parent.swf. Everything works fine but I'm unable to call any function that was in child.swf. My code is
Code:
var swf1:SWFLoader = new SWFLoader();
swf1.source = "CHILD.swf";
can.addchild(swf1);
I read on google and then I tried this in parent.swf's code
Code:
var myrequest:URLRequest = new URLRequest("CHILD.swf");
var myloader:Loader = new Loader();
myloader.load(myrequest);
canvas.addchild(myloader);
Now this one throws up a runtime error TypeError: Error #1034: Type Coercion failed: cannot convert flash.display::Loader@5934b01 to mx.core.IUIComponent.
I also tried this
Code:
var myrequest:URLRequest = new URLRequest("CHILD.swf");
var myloader:Loader = new Loader();
myloader.load(myrequest);
[Code]....
But in this case my swf does not show up at all and there are no runtime errors too!
How do I resolve this error and how do I then access the function in child.swf?
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Jul 27, 2009
I have container swf which includes navigation that loads child swfs. Each child swf is loaded then visibility is set to false. Once a child ( an image gallery actually) is loaded it is possible to jump from image to image. What Id would like to be able to do is call a "clean up" function that returns the child to its initial state when anothor nav link ( a different gallery) in the parent is clicked. But I do not know how the syntax is supposed to be written or if its even possible.
Ideally it would look something like this in the parent container swf:
ActionScript Code:
function swapSectionIdentity(e:MouseEvent):void {
setChildIndex(background_home, 0);
getChildByName("identity_mc").visible = true;
[Code]...
the behavior I am attempting to avoid is when a child swf is loaded ( an image gallery) and then the child is invoked to display a particular image in it, afterwhich a main navigation link is clicked the current gallery is set to visible = false and a new gallery is set to visible = true. But when you return to the previous gallery the last image viewed is still showing. I want to be able to reutrn to galleries inital state as it is hidden. make sense?
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Aug 29, 2011
I need to get the value inside a handler..
ActionScript Code:
public function verifyUser(p:String):String{
var verify:String
var variables:URLVariables = new URLVariables();
var varSend:URLRequest = new URLRequest("verify.php");
varSend.method = URLRequestMethod.POST;
varSend.data = variables;
[Code] .....
It's always returning 'null'. because its not waiting for the completehandler to be completed and just passes the null value of verify..
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Jan 2, 2009
this is the code i found out on the web to call a function in the parent swf from the loaded child swf.
in the child swf:
Code: Select allpanel.next_mc.addEventListener(MouseEvent.CLICK, onClick);
function onClick(e:MouseEvent):void{
MovieClip(this.parent.parent).parentFunction();
}
[Code].....
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Mar 17, 2009
I have setup a simple video interface. The video player lives in the parent swf. The video list chooser is loaded as a child swf. In this child swf, I have some video buttons nested within two movieclips in order to facilitate the scrolling feature. I am trying to get the movie buttons to load flvs into the component flv player in the parent swf. I have declared the functions in the parent and I am trying to call them in the child:Code in the Parent:
function vid1(event:MouseEvent): void{
pubPlayer.source = 'vid1.flv';
}
[code].....
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Jun 5, 2011
I have a headerbar.mxml that is displayed when user swipes_down in my app. The headerbar.mxml contains a button component I want to run an erase() in the main application window. The main application is a drawing app that contains an erase(). I just don't know how to call a function from another mxml view file. I thought it would be something like
click="{mainwindow.drawPanel.erase()}";
EDIT:
protected function onColorChange(event:List):void{
[code]......
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Jan 12, 2009
For instance, in the below code a parent can control a SWF child's function "alert ()". But how a SWF child can control parent's function "ReceivingChildMsg()" ?
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Jan 12, 2010
I have a main MovieClip that creates a new instance of an imported class which is a page in the application. This class tries to call a function on the main MovieClip and it's not finding it. I've done this in the past without any problems with separate swf files and loaders, and with movieclips in a library. I'm at a loss on how to resolve this. Here's what I'm doing (simplified for posting):
[Code]....
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Apr 14, 2010
I am adding a child .swf from the parent with a simple button. If this button is then clicked multiple times, the child is added multiple times. So I added the ".visible = false" to the button when clicked so the button cannot be clicked while the child is open.
Now, there is "Close" button on the child .swf that uses "this.parent.parent.removeChild(this.parent);" and would now need to set the parent button back to ".visible = true".
I have tried MovieClip.parent.parent.resetButton(); and parent as MovieClip.resetButton(); and many variations of the code. I get no errors but the code doesn't work either.
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Mar 26, 2011
I do not want to use external .as files because I will have about 100 swfs to manage in this project, 100 swf is a lot of file management alone without adding 100 .as files on top of it.This is the code in the parent swf file to call the child swf and place it in the page_mc movieclip (note in my final project "child.swf" is replaced with the loading array variable but we're going to keep it simple):
ActionScript Code:
var pageLoader:Loader = new Loader();
page_mc.addChild(pageLoader);
var loadedpage:URLRequest=new URLRequest("child.swf");
pageLoader.load(loadedpage);
Now just for a simple function to call, we'll say we have a box_mc on the stage in the child swf, and when we click the button in the parent swf I want to call a simple function like this to hide it:
ActionScript Code:
function hideBox(event:Event):void {
box_mc.visible=false;
}
how do I call that function in the child swf from a button in the parent swf?
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Jul 18, 2010
I'm switching from as2 to as3 and everything was going swimmingly with my new site until i tried to use a _root call to a function on the main timeline by a loaded movieClip that is loaded nested into 2 other movieclips. the movieClip needs to tell the _root when it's done playing so the root knows to load the next one in line through a php call. Everything works except for the _root call. In as3 there's no such thing as root anymore so I figured no big deal, i'll just find out what the new thing is and holy crap wtf! I can't figure this out!! I've read from doing stuff like custom eventLisnters (which i am trying now) and casting the root as a movieClip and then I read this whole crazy tutorial on building an event structure and the proper MVC way of coding and blah blah blah ALL I WANT TO DO is tell the _root that the loaded MC has reached the end of its timeline. Basically if it were as2 i could just go _root.loadNext(); and it would work.how to make a loaded MC talk to the _root timeline and call a funciton from there?
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Oct 5, 2010
Its a bit strange really, I have a Main class that has 2 children, Child1 has a variable goldCount that needs to be parsed to Child2 via the Main class (directly doesn't work either so far) Child1 has this function:
Code:
public function Getgoldcount():Number {
return goldCount;
}
[Code]....
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Feb 5, 2010
[code]All clips are squared.Ok, on the PlayerPlane, there are little soldiers, which have hotkeys. The effect I'm trying to create is I want to position the GameStage so that the currently selected soldier appears in the center of the GameClicker clip.The GameStage is movable by the player (to scan other areas of the map)by holding the CTRL key, so it's easy to kinda lose track of where your players are.I have tried using localTo Global and globalToLocal techniques, but I think I'm lost on the actual math of getting the GameStage to move the correct distance so that the selected soldier is centered to the GameClicker.[code]
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Aug 15, 2011
how do I get a value from another mxml.I have a vaule in the child mxml that i would like to parse to the parent mxml.Then use the vaule to create a search method.
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Jan 3, 2010
I got a "preloader" that creates an movieclip and loads an SWF. Now in the loaded SWF i want a close button to go back to the "preloader". The preloader isn't an actuall preloader but some sort of mainclip.Now i tried this:removeChild(MovieClip(e.currentTarget).parent.pare nt.parent)But i get error:ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller.at flash.display::DisplayObjectContainer/removeChild()at MethodInfo-6()
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Jul 22, 2009
I have a page-like flex application. In my main application is a holder (a canvas) that displays all the pages. The problem is that the components that are loaded inside the holder are bigger than the holder is when the main application starts. The holder height is set to 100% but still he gets scrollbars when I load a bigger component inside of him then himselHow can I solve this problem? And if it isn't solvable would it work correct if I use a viewstack?the holder looks like this:
<mx:canvas height="100%">
</canvas>
But the end of the application is 500 pixels lower so canvas height is 500 pixels high. Now I put a new child inside the holder that is 1000 pixels high.
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Feb 4, 2010
Recently I worked in a project using Flex. Its a Photo editing project. I have took a Canvas and take a image in that canvas using the code canvas.addChild(image) . Now i can move the image freely by using moving code. The image move inside the canvas and outside the canvas. I want to move the image/child only inside the canvas not outside. How can i do this?
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Feb 26, 2012
Is there any way to execute some actionscript in a child swf from the parent without actually having the script in the child swf,or having to add a callback.I'm new to flash so i don't know what can be done,or if it's easy to do.to be more specific,i need search a array.
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Sep 18, 2010
I have a public variable set within fx:Script tags in a parent component that I'd like to access directly from a child component. How can I do this? I don't want to pass the variable to the child component (I know how to do this and am currently using this approach). Following is a simplified version of the mxml:
Note: SimpleComp is an HBox with a couple of lists.
<mx:Accordion>
<comp:SimpleComp/>
</mx:Accordion>
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Mar 1, 2011
I have a flex application with two objects: a parent widget (called an IBaseWidget) and a child widget (called a HelperWidget2).When the user clicks on a help link, a helper widget is loaded into the list of base widgets and then displayed for the user.However, when I try to access this child widget by casting the base widget in the collection to the child widget type,the child widget returns null and I am unable to work with the widget.The following snippet correctly returns the widget ID of the newly added widget and dispatches an event to load the widget:
var id:Number = WidgetManager.getInstance().getWidgetId("Helper");
ViewerContainer.dispatchEvent(new AppEvent(AppEvent.WIDGET_RUN, id, openQuickQueryCanvas));[code].........
The problem is that helperWidget above always returns null, meaning the cast isn't successful.
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