As per the book, 'childAdd' event of parentcontainer should be triggered after triggering of 'PreInitialize' and 'Initialize' event of childcontianer while as per the program out put it seems otherwise.What I found in books is as below:
Container----------Component
Preinitialize
------------------Preinitialize[code].....
I have custom components which must adjust their text content based on space constraints. For example a component adds labels until there is no space, and then the content of the last label becomes "(x more)"
I do not have access to size of child controls before adding them. When in updateDisplayList, I make changes to the layout of the component, but for labels, lblInstance.text property fires events, which lead to updateDisplayList being called again. I know that updateDisplayList may be called more than once, but if there is a way to modify text without triggering events, that'd be really useful. For example, setActualSize method in UIComponent allows this kind of modification. Anything similar for text controls? Or do you have best practices for laying out and managing text content, in the context of custom Flex components?
I am extending VBox to make a Calendar component. What method should I override to add the code to draw itself? What is the difference between all these methods? Is there something I should be putting in each one, or is there a specific method I can just override, add my drawing code, and have it work?
View 5 RepliesI have a flex application where on creationComplete i call a method in which i needed to load two XML files frm the server.only after which i need to proceed further..
Currently i am doing the following onCreationComplete = init();
private function init():void{//loading first XML
urlReq = new URLRequest(PATH_FOR_XML1);
urlLdr = new URLLoader(urlReq);
urlLdr.addEventListener(Event.COMPLETE, doEvent);
[Code]...
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)?
View 1 RepliesI have a component that has a sub-component they both use a shared variable from the model. The shared variable needs to be set by the parent component before it can be used by the child component. I did like this in the parent component:
<mx:Canvas
xmlns:mx="library://ns.adobe.com/flex/mx"
...
creationComplete="group1_completeHandler(event)" >
[Code]....
But for some reason when the code inside myCustomComponent tries to use myVariable for the first time I get a "null" object error. This means I guess that the child component gets rendered before the group1_activateHandler gets called and consequently myVariable gets set.
What should I do to ensure that the parent container initializes the variable before the child component gets created?
I have a component called a TableDataViewer that contains the following pieces of data and their associated set functions:[code]This component is nested in another component as follows:[code]Looking at the trace in the logs, the call to set table is coming before the call to set dataSetLoader. Which is a real shame because set table() needs dataSetLoader to already be set in order to call its load() function.So my question is, is there a way to enforce an order on the calls to the set functions when declaring a component?
View 1 RepliesI have a regular spark list which is sorted correctly when no item renderer is used. However, when the following item renderer is used, the list shuffles and displays items from previous instances of the list.[code]
View 2 RepliesI've read in the flex developer guide that you sometimes need to override one of the lifecycle methods like: commitProperties and updateDisplayList but I've written a few flex apps without ever needing to implement them.when do I need to override them?
View 2 RepliesI'd like to have a double click event on a datagrid in Flex3. The following example only works if the Accordion (id = "mustBeSecond") container comes after the DataGrid. Why is the order of the components important and what can I do to prevent this behavior? (The example does not work. If you change the order of "mustBeSecond" and gridReportConversions" the example works fine)
<mx:Script>
<![CDATA[
import mx.controls.Alert;
[code].....
Create a tab navigator (or viewstack, whatever) and add a couple tabs. On your tab add a show event handler. Inside the event handler call invalidateProperties() and invalidateDisplayList() on one of the children of your tab. Put a break point on the childs commitProperties() and updateDisplayList(). You'll notice that the updateDisplayList() gets called before commitProperties() which results in incorrect behaviour.
I noticed this problem when setting a DataGrid's dataprovider from inside the show handler. Setting the dataProvider causes the grid to invalidate both properties and displayList, updateDisplayList() will get called first, then commitProperties() which will result in the grid not updating the rows. It appears the root of the problem is that the show event gets dispatched from within LayoutManagers validateDisplayList() loop, so invalidating a child object from within the show handler results in its updateDisplayList() getting called immediately.
[Code]....
I have written a custom component for drawing a circle in Flex. But When I try to write a click event or mouseDown event for that component, it doesn't work.[code]...
The "Hello" Alert is displayed only at a particular point and guess is, at the point, (175,150) the x, y co-ordinates of the circle. But shouldn't it be displayed wherever I click on the MyCircle component?? how to enable it in that way?
Also the mouseDown function doesn't work for MyCircle,but if have the event for the VBox, the Alerts are displayed.
I created a flex component that hosts several built in (mx) components such as a listbox and combo box. My component relies on external data, and I need to expose events such as ComboBox.enter and List.click to get certain pieces of data.I was wondering if there is any easy way to do this without having to create my own custom event handlers. I'm simply trying to expose these events with different names so that when my component is used, I can do things such as:
<?xml version="1.0" encoding="utf-8"?>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="100%" height="100%" xmlns:com="com.*">
[code]........
I have a component that, once it's all ready, I need to set the state based on a variable I'm reading in from XML. I tried doing it with creationComplete, but it's apparently not ready, as the state isn't being set with elements rendering properly, but the states & rendering work fine if I do a subsequent state change with a click action on some element.
What should I do in this situation to make sure the state gets set at the right time & elements that should appear due to includeIn exist so they can be rendered? initialize instead of creationComplete doesn't seem to do the trick for the first time the component is created. Any successive calls to the component are fine.
I'm taking my first stab at writing a custom flex 4 component by extending the UIComponent class. Unfortunately, I cannot get the component to respond to any sort of mouse events.I've tried setting mouseEnabled to true is the component, as well as setting mouseChildren to true in the parent (the stage object). It seems whatever I do, my click events can be detected from the stage, but not with the component.Here is my component class:
package components {
import mx.core.UIComponent;
public class DrawCanvas extends UIComponent {
[code]......
I have built a Air 2/Flex 4 kiosk application with Flash Builder 4. Currently I am implementing a touch screen browser to enable users to navigate company training videos. In an attempt to improve the usability of the website on the touchscreen I have placed the HTML component in an adaption of Doug McCune's DragScrollingCanvas (updated to use the flex 4 'Scroller' component) to allow users to scroll the webpage by dragging their finger across the screen. The mouseDown event is used to start scrolling the viewport.
In addition the webpage was modified to disable text selection with the following css:
[Code]...
As an alternative I also tried adding a group container with the same dimensions as the HTMLLoader to detect the mouseDown events (so that the group container and HTMLLoader have the same Dragable parent container) and was able to capture mouseDown events and scroll the viewport as expected. However as the mouse event is handled by the group container, I am now unable to navigate the webpage.
I would like to find documentation on the order of events for my_loader.contentLoaderInfo;
specifically: does init ALWAYS fire before complete?
I'm attempting to make a point and click game for a University assignment and I wondered if anyone could advise the best/easiest way to trigger events in a particular order. For instance, before the user can continue from one side of the screen to the other he has to click to flick a switch, lower a platform and lower a bridge...
View 2 RepliesScenario: I have a simple external class with one function that takes about 2sec to execute. It gets some data and put it into a global variable (using a special class for this). From the first frame on the timeline I call this function, and then right after I trace the global variable.
Problem: The trace is actually executed before the function in the external class has finished executing, so the output of the trace is undefined.
I have five simple equations that I need help converting to ActionScript. I'm making a small "calculator" that takes input from the user and displays a number representing the result of the equation. They're two sets of equations: 1) three-scenario fee calculator to compare the annual costs (X) of renting versus buying equipment; 2) comparison of two rental plans. The numbers entered need to stay the same - the alphabets represent what the user will input. The equations are as follows:
Scenario 1:
X = ([A � F] / G) + H + I + J + (K x 12) + ([L / N] x M)
Scenario 2:
X = ([B � F] / G) + ([E x C] / G) + H + I + J + (K x 12) + ([L / N] x M)[code]....
I've looked at my resources at hand, but my brain just shuts down when I see numbers and letters representing numbers. I do speak three languages fluently, so I (think) I make up for it.how to properly assign the correct order of events (brackets first, etc) in ActionScript to reflect the equations above.
I need to know how I could do to interconnect different computers in order to share events in real time. For example, if I press some button I get a sound and I need that other who is using the same swf could mix it with anothers that can be generated by the same swf.
View 2 RepliesIn Flex [4], when cycling the focus through components by pressing Tab, how can I remove particular components (eg. some buttons) from the tab cycle. I want those buttons to be skipped completely when pressing Tab.
View 1 RepliesIf I add a textarea component to my movie I can no longer tab out of it in IE. With no component, it works fine. I'm using AS3 and am not sure where to go from here. This is one of that adobe's "accessible" components so the fact it causes the page to become completely unusable for keyboard users is a bit frustrating.
View 1 RepliesI have a .fla which loads 2 swfs. Each swf plays an animation. I only have the .swfs and not the .flas so I cannot add code to the animations themselves. I want the 2nd swf to play when the first is finished. Is it possible for my .fla to monitor the first loaded clip for when it ends and then play the second one.
View 2 RepliesI need to find a way to "upsample" text from 72dpi (screen) to 300dpi (print) for rendered client generated text. This is a true WYSIWYG application and we're expecting a ton of traffic so client side rendering is a requirement. Our application has several fonts, font sizes, colors, alignments the user can modify in a textarea. The question is how to convert 72dpi to 300dpi. We have the editior complete, we just need to make 300dpi versions of the textarea.
1) Get textarea and increase the height, width, and font size by 300/72. (if ints are needed on font size I may need to increase the font then down-sample to the height/width)
2) use BitmapUtil.getSnapshot on the textarea to get a rendered version of the text.[code]
I have a component "child" which has a cancel button. Now this component is placed in a state called "newChildComp" I also have another component called "parent". In the parent component, i have a button that dispatches an event. Here is the event code:
[Code].....
so, basically,i am checking to see if the cancel button component in the Child component, while i am still in the parent Compoent, was clicked, if it was clicked, call the cancelButtonHandler. The problem is by the time the addNewChild handles the event, that cancel button was still null. My question is how do i solve this without using the itemCreationPolicy on the cancel button?
I've developed a Version 2 Events Calendar component that will accept multiple, non-continuous days (which the DateChooser component does not do).
in particular I'd like to thank the following people, without whom this project would never have been completed. i'm indebted to you all
activity.xml is where you put the dates in. open up the file and you'll see how i did it. i marked the dates i wanted highlighted and then put in the url where you get taken when you click on that date.
i've developed a Version 2 Events Calendar component that will accept multiple, non-continuous days (which the DateChooser component does not do). i'm indebted to you all: prophet, cycom, bodyvisual, thoriphes, claudio, scriptflipper, hga77, senocular, e.s.x.s., and mcgiver. i've learned so much from all of you. now to the component. please don't yell at me for not packaging this as an .mxp. i tried and well, failed... open up the attached zip file: EventsCalendar.swc and XMLMember.as go here: Program Files --> Macromedia --> Flash MX2004 --> en --> Configuration --> Components.
activity.xml needs to be on the same level and in the same folder as the .fla you're putting this in. activity.xml is where you put the dates in. open up the file and you'll see how i did it. i marked the dates i wanted highlighted and then put in the url where you get taken when you click on that date.
LinkeSetFx has its own CollectionEvent, but I don't know how to map the LinkedSetFx event to mx.events.collectionEvent(I want use it in ComboBox). LinkedSetFx is in AS3Commons-collection framework.Here is the url, choose the as3commons-collections-1.0.0.zip, you'll find LinkedSetFx in srcorgas3commonscollectionsfx
View 1 RepliesThe AS2 DateChooser has just the functionality I need to build the events calendar that I have to build .. however .. while I know what to do in theory, I'm stumbling on (a) whether it will work and (b) syntax.
I want to display an instance of the DateChooser (myDate) and access the selectedDate property when the user selects a date. Then I need to pass it to the main events page preferably on the same page with something like this:
SELECT EventTitle. EventDescription, EventLink FROM Events
WHERE EventDate = MMColParam
MMColParam 1 myDate.selectedDate
The page itself is ASP. I am thinking I would probably define a variable and perhaps use LoadVars to load the selected date from Flash .. not something I have done before.
Perhsps something like
dim eventDate
eventDate = myDate.selectedDate
I'm sure that's not the syntax .. but I think that is the theory. I should be able to access the selectedDate property of the Date Chooser instance and feed the date into the query to select the events on that date and list them.