Flex :: Different Uses Of Component And Module In Application?
Jun 9, 2010purpose of component and module of flex app
View 1 Repliespurpose of component and module of flex app
View 1 RepliesI have an application built on Flex 2. I am writing a new application (module based) in Flex 3. Will these be able to co-exist? Can I invoke Flex 3 module from Flex 2 application?
View 1 RepliesOk, modules in Flex are popular but I have no idea why documentation and examples on the different uses of Flex modules can be so scarce.Anyway, for this question, I will take the classic Employee/Department example. I have a main.mxml that contains an mx:TabNavigator. Each tab is loaded by an s:ModuleLoader.Tables: Employees {empID,empName,deptID}, Deparments {deptID,deptName}The Tab Navigator contains only one tab (for our example) called Employee. I have an Employee.mxml module. In that module, I have a datagrid that is populated with Employee details. I use the getEmployees($deptID) function. This function, as you may guess, returns me an array of Employees who work in a particular department.
Outside the TabNavigator, I have a departmentDropDownList that is populated with departments.deptName.My objective is to load the Employee module when I select a particular department from the DropDownList. I have a changeHandler for the DropDownList that can give me the deptID.
protected function departmentDropDownList_changeHandler(event:IndexChangeEvent):void
{
MyDeptID=departmentDropDownList.selectedItem.deptID;
[code].....
I'm trying to create a module for a flex application, and I want to send notifications to clients. I've been looking at the BlazeDS messaging service to push out the notifications to clients, but I want to be able to send certain updates to certain clients. The Flex notification framework doesn't seem to allow this - if we have a field in the message with a value of the user's user id for example, any client could theoretically subscribe to all messages for any given user id, and there's no verification on the server side to make sure that the client that has subscribed is logged in as that user id.Is there something I've missed here, or is the best way to handle this writing my own polling mechanism on the client side?
View 2 RepliesI have a large module written in JS which uses Canvas to draw and animate trees. This module was written for a product which is now being migrated to flex.
Is there a way in flex to embed this JS module as is? Or would I have to rewrite the whole module in AS3 (shudder)? Further, if embedding is possible, would user interactions (mouse clicks) etc. work seamlessly?
An example of the tree structure I am talking about can be found here - [URL]..
Is there a way how modules can listen to parent application event? My current solution that works is:
private function directoryRemoteObject_saveCompany_resultHandler(e:ResultEvent):void
{
this.directoryModuleLoader.child.dispatchEvent(new CompanyEvent(CompanyEvent.COMPANY_SAVED, e.result as int));
}
this means that I need to dispatch event for every module.
I'm building an Air for Android App and I'm having problems loading a flex module. Does anyone know if loading modules is possible???
I built a simple app with just a ModuleLoader in it, which loads a mx:module. The module has only a simple mx:Label with a "Hello World" text.I build a .air with this. Then I build a .apk with the followin adt command.
adt -package -target apk-emulator -storetype pkcs12 -keystore certificate.p12 hello.apk hello.air
The application works just fine when running it on the PC, but when I do it on the apk-emulator it just goes blank and throws error #2032.
I'm working on an existing modular project that was built in PureMVC. Instead of converting everything over to RobotLegs, I want to create a new module using RobotLegs and plug it into the pureMVC shell. Currently, when the module loads, I get the following flash error: ReferenceError: Error #1065: Variable IMediatorMap is not defined.
Inititally, I thought it was because my module needed a pureMVC Mediator to call the pureMVC StartupCommand to get things "hooked up" and THEN create the RobotLegs' Context. However, that didn't work and I'm still getting the error.
How to take an existing custom component in Flex and convert it into a module? EDIT: What should be done in the mxml where this custom component is used? Should it be replaced with a to load the module? If yes, how to deal with code that uses instances of the components?
View 2 RepliesI know that the best way to make a connection from my main app to my modules is through interfaces.
So, my problem is, how can I implement an interface so my module can send and receive data from my main app?, cuz, I understand that my module implements an interface that is used by my main app.. but, can I do it "viceversa"?
Other issue I have is, why do I need to call my main app children if I can just import a module's class?.
I'm implementing a Flex application with several modules.I'm reusing the same component in all these modules.I was wondering if I'm correctly importing it in each mxml module definition: xmlns:hillelcoren="com.hillelcoren.components.*"Should I import it only once, in the main application mxml instead?
View 1 RepliesCurrently optimizing an application at work. There are many files in some of the module projects that are not used by the exported (release build) Module.swf's. Are these unused files included in the swf's?
View 1 RepliesHow I will be back in Login Page after click of logout which is in application's component.
Project.mxml
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx" width="100%" height="100%"
[Code]....
I have created a module in Flex like below:
modules/ModuleBase.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:Module xmlns:mx="http://www.adobe.com/2006/mxml">
[code].....
A Flex components values are initlized by init methord. In an application flow, How to refresh a mxml component data value ; as init is callled at the start up it self only.
eg. of mxml componet may be as simple as button label or text as complex as repeater whose data provider is a web service ( means a fresh quesy should be made to pull the data and refresh the dataprovider of repeater )
I'm making a UI for a component in Flash. I wanted to use Flex and have had no luck getting the onUpdate exernalInterface call to fire properly. I'm referencing the functionality described here: [URL]. First off, I can't embed the SWF in the FLA. It just won't start the Flex SWF. Even using the external swf, it seems that the onUpdate function is either called too early or not at all. Here's what I've tried:
Tying the externalInterfce declaration to the initialize, preinitialize, applicationComplete, and creationComplete events. Sub-classing my application and putting the externalInterface in the constructor. Neither of these options work. When I create a basic AS3 project in Eclipse and put the externalInferface in the constructor, it works as expected.
Is there a way to tell at runtime if a flex UIComponent is in the user's view or not.For example, if I have a tabNavigator with a combobox on each tab, is there a property of the comboBox that will tell me if it is visible to the user or not when I switch from one tab to another?I know it is not the comboBox.visible property. That is set to "true" for both comboboxes. I want a property that will change when I switch from one tab to another making the comboBox visible to the user. I don't know what that property is.
View 2 RepliesI made a login component for my flex 4 application, and i load this component from my main flex application with:
<ns1:Login id="page_login" visible="true"></ns1:Login>
Now i want to change the visibility from true to false, from the login component.
I created separate own canvas component for Home page, Contact page, Rules page etc.In my main application it has link button like Home,Contact,Rules in application controller(child state) . [code]...
View 1 RepliesI wonder which component to extend in Flex 3 in order to make a drawing stage.
View 1 RepliesSo I'm using a custom auto suggest component that I found online at [url]... The background color for the item is set within the following folder[code]...
I use this component from within a component I created called "position.mxml" that is located in a folder named "modules". Is there any way that from the position module, I can change the background color of the autosuggest box?
I will need to execute a function in a comp1.mxml from main.mxml through event, I found it difficulty to understand and unable to get it work.[code]...
View 2 Repliesi have a component which gets the data selected by the radio button
<mx:itemRenderer >
<fx:Component id="radio">
<mx:RadioButton selected="false" useHandCursor="true" change="item_changeHandler(event)">
[code]......
I know it is possible to develop a full flex application using AIR for android but what I need is to embed a flex component into an already existing classic java android application.
I found some flash players in java but they all either require a JFrame or include of specific windows dlls.
I would like to send variables or parameters from Component to Main (MXML) Application. Like my component is FileUpload.mxml and would like to forward the uploaded file details from FileUpload.mxml to Main.mxml.
I tried the following procedure :
com:FileUpload id="fp"
to get the reference for the FileUpload component, however, I am unable to get the variables from the FileUpload.mxml file.
I'm new to developing iOS applications and my school gave me approximately 5 months to develop an iPad application. I have no knowledge or practice on Objective C so since Flash Builder 4.5 allows the development of mobile applications (and I have experiences with Flash Builder), I decided to develop my application on Flash Builder instead.
Everything is going fine until I was told to include a SplitView in my application. I implemented a List on the left side of the application. Clicking on any of the list items will navigate the user to a to another view but i also included and retained the list on the left side of the new view in order to simulate a "SplitView".
Initially it felt as though it will do the job of a SplitView like how it does when I attempted it on XCODE but it doesn't look or feel natural. I found this video which shows that it is possible to create a SplitView on FB but I've cracked my brains and I really can't figure out how it is done.
[Code]....
I have created a modular application. I have two modules, for example Module1 and Module2.I have loaded these modules in my application. I am using Parsley in my application. I have loaded separate different context builder in both modules.
But when I am dispatching event from Module1, I am able to listen that event in that Module1 but I am trying to listen that event in another Module2. I am not able to listen that event in that Module2 through Parsley.
I need to be able to call a method from a component located under the main application in Flex 4. Can anyone tell me please how to do this without using FlexGlobals please?[code]
View 3 RepliesIn my main application I have a viewstack with 3 child views. In the viewstack change handler, I programmatically change the selectedchild property.
I understand that the initialize method for the view is not called every time I change the selectedChild Property. So I tried to invoke the init method programmatically too..
view1.mxml
<fx:Script>
<![CDATA[
[Code].....
I am trying to create my first real world Flex application. I will have a lot of different data entry / data view screens so I thought I would create many different components to deal with each different type of data that was being returned. I have a MXML application called Layout, and have component called "Navigator" which controls the menu, as well as a ViewStack called "MainContent".
I want the Navigator component to change the ViewStack on the Layout application to that of another Component (each Component is embedded within the Canvas of each ViewStack). I have a click handler on my Navigator which looks like this: Layout.ContentFrame.selectedChild=event.itemRenderer.data.clickValue; However it shows the error "Access of possibly undefined property ContentFrame through a reference with a static type Class." Is my approach a good way of doing it? I have attempted referencing it using FlexGlobals.Layout and topLevelApplication.Layout... neither of which work?[URL]