In the following code, the call to myChild.bar() results in an exception because myChild is null. myParent is a valid object. What I don't understand is why myChild has not been created yet.I have read the following document related to object creation sequence, but I am unsure how "new" is related:docs
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="created()">
<mx:Script>
<![CDATA[
[code].....
Driven on by curiosity, I'm trying to understand the Life Cycle used by Flex Application. I've done a little research on this argument; the two key concepts used into the FlashPlayer are:
SWF Frame: it's the logical unit that contains graphical code and as code Flash Player Frame: it's the time interval used by Flash runtime to update the screen and defined by frameRate property
If so, could you explain me the relationship bewteen these two concepts? In particular, are they paired togheter or not? The main rule is: the Flash Player streams in a swf; until a full SWF Frame is read, the Flash Player cannot render it.
I'll try to explain what I need to understand. For the sake of simplicity, suppose you have a two frame application: SWF FR 1 and SWF FR 2.
In general (for example in CS4) a frame is considered as a logical unit (delimited by ShowFrame tag) where you can attach as3 code. This as a simplified version of a swf file, i think:
Header // frameRate is defined here
Symbols, classes etc... // this is FR1
=== ShowFrame ===
Symbols, classes etc... // this is FR2
If you have two frame, FR1 and FR2, Flash starts executing FR1 and goes to the next one (FR2). If you don't stop the excution, the Player executes and renderes code contained into FR1 and FR2 through an infinite loop. On the contrary, when you stop the execution, for example in FR2, the flash player loops executing code contained in FR2.
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I am confused with how component life cycle goes when component build in MXML. and if MXML calls methods automatically then how to call any method in life cycle explicitly.
View 1 RepliesIn UI component life cycle, I heard validation and invalidation events. Please explain me about these events in short. What does updateDisplayList() method do in that life cycle. Please explain me in short if possible.
View 2 RepliesI'm trying to cycle between 2 different tween actions in Flex. Here is what I'm trying so far: In declarations:
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The problem is that once I start the animation (by clicking a button), I get a timeout error saying the script has been running for longer than 15 seconds, with no tweening ever occurring. The animation works if I were simply animating it once.
I am working on a game in flex, and I am trying to create an xml file for each user if it is their first use, and then after that just access that file and edit it accordingly.Is there anything that could do this same thing first off, basically create and edit some sort of save state? I assume that flex would have some kind of saving state type of thing, but I am not sure what to look for in that respect.If not, does anyone know how to do this with xml files?
View 1 RepliesMy problem is i am trying to make a panel. My button in in Main.mxml whereas the panel functions are defined in panel_Create.mxml. the code works fine. In panel_Create their are functions to create panels at runtime. The problem i am facing is when i run the program it wont show the panels but it does increase the value of n and after 8 clicks it gives alert message. The code works fine when i put all the code in Main.mxml
<fx:Script>
<![CDATA[
import Components.panel_Create;[code].....
I'm creating files in an AIR application like this:
var file:File = File.documentsDirectory.resolvePath("myFile");
var stream:FileStream = new FileStream();
stream.open(file, FileMode.WRITE);
[code]....
I wish to do screen sharing application using as3 as the part of one project. how to get screen sharing video using as3.
View 2 RepliesCan i use creation complete in item renderers, i have a data grid and i have kept every single cell as an item renderer. is it a good practice to use creation complete here. I fear events might fire up at wrong instances.
View 2 RepliesIs it possible to load a swf file after application creation in flex? If so how?
View 2 RepliesI have created a custom control Which contains an header(HBox) and list control below the header. I can open and close the list (Meaning list.height = 0 and list.height = 200) by using the header click event. Initially the list will be in closed state (height = 0). When we open it for the first time. It takes too much time. For the successive open of the same list looks smoother (I suppose this is because itemrenderer is being reused). I want to open the list for the first time smoothly. I have created my own renderer for list control which contains one 5 combobox inside a HBox.
View 1 RepliesI have multiple MXML custom components that I add on the fly (using a repeater) that is binded to an ArrayCollection. So everytime I add/remove item from the ArrayColleciton new items show/disappear from the screen. Is there a straightforward way to make item fade in when they get created and fade out when they are removed? I thought of using states and state transition effects but that will make things a bit complicated at different part of my application for those components to manage the states.
View 1 RepliesI have written an Air program that mirrors a directory tree. The problem is that the destination folder structure and content need to be identical - right down to the creationDate and modificaitonDate file attributes. How can I change these file attributes using Adobe Air? I'm able to READ them both just fine, but the properties are read-only. How do I change them?
View 1 RepliesI have created a custom item renderer for the tree, i have added some children in create children function, my problem is that sometimes i need to show these children and sometimes i don't, depending on clicking on a button which also i have added at create children, the problem is that i had to create the item even if i don't want it to be visible, and removed it by making visible false, and this costs a lot of memory, i have tried to create it at buttons click listener but when scrolling the child disappears, and it may appear again if i keep scrolling up and down.. i am trying to add the child just when i need it to be visible, is this possible or i have to create it on child creation method?
View 1 RepliesSo yahoo astra has grate compohent for saving inputed data. They show examples of how to use it. But I had not found one capable to solve my current problem. For example user inputed his name. It is saved, but when he comes again he always needs to input at least first latter of his name. so I wonder - how to make Yahoo astra autocompletemanager component to pop up last inputed into it value on application creation complete?
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On my mx:Image component I have a creationCompleteEffect="glowIn"
<mx:Glow id="glowIn" duration="700"
alphaFrom="0" alphaTo="1"
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I'm trying to set a specific list item in a mx combobox to have a custom item renderer, the problem is that I cannot do this via mxml, it needs to be done via actionscript at a later stage, eg: combobox gets created, combobox gets populated, user does other tasks, combobox needs to set one or more items in the combobox to have icons (via item renderer)..
I can do this via the onChange event, but it only applies the icon when the combobox is opened and there is a slight delay so you can see the icon being added.
We create Objects in flex by declaring type Object. for example
var objSampleObject:Object = new Object();
and we create properties directly with dot operator without creating any class
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My question is in above process is there any class is created internally by flex?
i have a menu which is controlled using two buttons, to cycle through the submenus i have an action script: _root.Up.onRelease = function() { prevFrame();};_root.Down.onRelease = function() { nextFrame();};i have this code for 6 different submenu, but when i test it only work works
View 13 RepliesIs there some script or reference to show me how to create an swf with 3 jpg files (I'd like them to fade quickly but calmly between each other and simply cycle around for a web banner.
View 2 RepliesI'd like to make a circle slide ( Slider that on the shape of circle instead of vertical and horizontal Slider) like this one: [URL] Is there a ready Component on the web.
View 7 RepliesI've recently started using Flash in CS4 and finished up a short cycle and exported it as a .mov to find it had clipped the last two frames, Does anyon know why? Or how to stop it from clipping my work?
View 1 RepliesI'm currently trying to teach myself how to use flash CS5 and actionscript 3 and apart from doing small amounts of programing here and there I'm a complete novice.
I have 36 photographs taken at 10-degree angles, making an object and i have each image in a different scene, with hidden buttons asigned to different parts of the object so that whenever you hover your mouse over them it provides some more information.
What I want to do is to be able to cycle through these images in the different scenes using the up and down buttons on the keyboard.
I'm (still) working on my xml phone book. I need to cycle through the data in the array on mouse click. (The mouse click will be a swipe on a mobile device.)
stop();
var nameArray:Array = new Array();
var countryArray:Array = new Array();
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I have made a movie file symbol with multiple key-frames, such as a person walking, but when I drag this symbol from the library into the stage and preview it, all I see is the first frame of the symbol--it never changes to the next frames.
View 1 RepliesLet's say I have 30 movieclips in the library, all of the are unique and have linkage names item0, item1,..., item29. Now I need to display them. In as2 I would do:[code]How can I do this in as3? As far as I know I can only attach movies from library like "new Item0()", is that right? So there is no way I could do this in a for-cycle?
View 5 RepliesI'm using the tutorial for the Photo Gallery using XML[url]...
Does anyone know if it is possible to modify the code so that it automatically cycles through all the images in, say, 10 second intervals? So rather than keep clicking the next button, it just cycles through. And when it gets to the last image, it then cycles back through the first one.[code]...
I am making a portfolio for my website and here is the beginning of my script.
stop();
//setting up the list of frame names for the buttons
imagelist = ["horror","legs","chair"];
//'next' button setup
next_b.onRelease = function() {
gotoAndPlay (imagelist[0]);
}
Now I want the button to cycle through the arrays so that everytime you hit the button it goes to the next frame instance that I've named. In this case imagelist[0] is horror so next time you hit button I want it to goto imagelist[1] or 'legs.' Also I need to set a stop action for this (I am guessing loop) so that it stops at the array length.
If I wanted to to cycle through an array that looked like this:Array("Red", "Blue", "orange", "green", "Silver", "Black", "Yellow", "Peach")how would my code look if I wanted to only display three at a time. what would the code look like for a next and a previous button to see the next three and the previous three?
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