Iphone :: Flex - Use AMF Instead Of JSON (for Web Services)?
May 29, 2010
Although iPhone support JSON natively, AMF is a binary protocol and it supposes to use much less bandwidth. Do you think using AMF is a good idea?Just found this AMF library in cocoa (Objective-C):Here's the famous benchmark that shows AMF is smaller and faster than JSON + gzip in Flex:
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Mar 19, 2011
I know most people hate 100% flash-based websites, but I was recently forced to use flash for a college assignment. After creating a fully-featured ria in less than 2 weeks with every feature I could imagine, i've regrettably fallen in love with this beast (which I previously refused to touch with a stick) due to the power of AS3 and the ability to sprinkle it everywhere :-
I now want to port a commercial desktop application of mine (which has been largely unsuccesful) to the web and feel flash/flex is an excellent candidate. While creating a html/css/js version would be ideal (working browser shortcuts, for a start), i'm certain it'll take a year to create in cross-browser html/css/js what would take just ~3 months in flash. Obviously as the (paid) desktop product was unsuccessful, i'd want to minimize the risk/investment in the (free) web application.
I plan on using JSON for web services, so it shouldn't be a huge pita to port in the future.Is this a good strategy for launching a web app you're not yet 100% committed to? Or will the fact i'm using flash doom me from the start? Has anybody else done this? If so, how did your userbase respond to the 100% usage of flash, and did you get around to porting it to standard web technologies?
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Nov 28, 2011
Created an editable flex grid which exposes a method called getGridData() to javascript. I am using the JSON.encode() method of the [url]....library to convert the grid object's dataProvider into JSON before returning it.
ExternalInterface.addCallback("getGridData", getGridData);
public function getGridData():String
{[code].....
However, when I sort a column in the user interface, the encode method is failing throwing the following error
Property usingCustomCompareFunction not found on mx.collections.SortField and there is no default value.
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Mar 6, 2010
I'm interested in developing for the iPad and iPhone, but I'd prefer not to learn Apple's whole development stack (and good golly, I sure don't want to go back to manual memory management). Oh, sure, I could learn it, but I don't have that level of commitment to the environment at this point. I've got professional experience with Flex already, so I'm intrigued by Adobe's move to make Flash/Flex compile to the iPhone and iPad. My question is: how promising of a development path will Adobe's Slider be? Are we likely to see Slider publicly available in a reasonable timeframe (Adobe: "An early mobile branch of the Flex framework is expected to be available in 2010")? Are we likely to see reasonable performance? Are there development hurdles that haven't become clear yet? Heck, is it all just vaporware? There's pretty limited information available so far, as far as I've seen, but I'm interested in people's predictions, even if they're speculative.
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Oct 8, 2009
I'm interested in building a thick client application for my existing web services that will run on the IPhone. Flash finally seems to be an option, so I thought about using Flex for client side development.
However, since flash apps are not natively supported by the IPhone, but only through a wrapper, I was wondering if these apps can persist any data. Data entered by the user should eventually be transmitted to the web service, but until then I want it to persist even if the Iphone should run out of power.
Is this possible? Or does the Iphone flash wrapper make it impossible to access the hard disk?
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May 1, 2010
How to compile your flex (Flash Builder) application for Iph*ne Using Adobe Flash CS5? A User can Install an app having it as compiled binary?
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Sep 11, 2010
i'm following Christian Cantrell guide for packaging AS3 application for iPhone, but i can't find a way to use the packager for creating an app for testing on device. I've tried with -target ipa-test and -target ipa-app-store but when i try to upload my app on the iPad, iTunes throws an error sayng that i'm not allowed.I've done a simple test using the Packager bundled width CS5 (with the same certificates) and everything gone right.
Is is possible to use CS5 Packager for Flex project ? (i know that flex isn't optimized for mobile)
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Aug 3, 2011
I have built an app in Adobe Flex (4.5) and it works well on Android, but i need to test it on an iDevice. I have an iPhone 3GS available, and i have made a provisioning profile with it and certified it through the proper Apple channels, but trying to install the app to the phone through iTunes results in an error (the same one you get when trying to install non-market apps), and i can't find a way to import it into xCode.
NOTE: i developed the app on a PC in Flex, but have a MacBook Pro available for testing.
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Jul 18, 2011
I am a Flex developer. I wish to make flex applications for iphone. But, when I google up for the same, most of the link shows up that Adobe Flex and flash aren't supported on iphone.
Is this right ? Why it isn't supported ? If it is supported, which are the good books for developing iphone applications via flex.
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Jul 19, 2011
I am flex programmer and newbie to iphone application development.I wanted to make a iphone appln using Flex 4.5, but can't find any good books/resources for it.
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Nov 5, 2010
I'm working on a Flash AS2 application that needs to post JSON data to a web service.In previous projects, I've used LoadVars.send() or LoadVars.sendAndLoad() successfully to manage this:
var send_lv:LoadVars = new LoadVars();
send_lv.data = JSON.stringify({some json object});
var response_lv:LoadVars = new LoadVars();
response_lv.onData = function(rawdata) {
[code]....
In somepage.php, I can grab that JSON data using $_POST['data'].However, on this project, the developer of the web service requires the JSON content to be the BODY of the request (i.e., not a name/value pair). Is this possible with LoadVars?
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Oct 14, 2011
I'm new to JSON. This is the .json I want to decode but I always get this error:
[Code]...
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Feb 23, 2012
I have a pure ActionScript 3 problem, but the simplified test case I've prepared is in Flex 4 for better visibility (the source code is below): Since Flash Player 11 / AIR 3 support JSON natively, I've decided to move a multiplayer game, which used XML for communicating with server, to JSON. But I have a frustrating problem, that given two Objects like
[Code]...
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Jun 24, 2009
I have Basic Authorization mechanism on the server for WSDL/SOAP. How I can send "Authorization" header through Flex WebService?
Simplified example:
var ws:WebService = new WebService();
ws.wsdl = "http://localhost:8000/api/service.wsdl"
var encoder:Base64Encoder = new Base64Encoder();
encoder.insertNewLines = false;
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Aug 10, 2011
I've been searching for the last couple days but can't seem to find a basic example of what I'm looking for. I'm developing a Flex 4.5 app and in it I have a viewstack of 2 components that use some of the same services. Currently the only way I can get the app to correctly use the web services is by defining 2 different web services that use the same PHP web service file. For example: I have an app, and within it I have a viewstack with tab navigation of 2 components: #1) retrieve a list of all Salary Employees, and #2) retrieve a list of all Contractors. Currently to get it working I am defining a UsersTableEmployees webservice within component #1 and a UsersTableContractors webservice within component #2, but they both point to the same PHP class, and only differ in the arugment value I pass to them. Ie, getUsers("employee") and getUsers ("contractors"). Of course this is not best practice.
Searching StackOverflow and Google gives me many results about ColdFusion and MVC (example What's the best way to share data between components in Flex?), but I'm still confused. Can anyone here point me to a basic example (even sample MVC) and source code of an app that uses Zend AMF and allows different components to call common web services?
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Sep 28, 2011
I am sending a request to a server, and in return I get a long block of JSON.
{
"response":"success",
"assignments":{
"17733":{
"asnid":"17733",
[code]....
Is there a way to do this? I checked if the property was enumerated and it returned true, but I cant find a way to access this data.
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Dec 13, 2011
I have to work with webservices in Actionscript. I found the following code that allows me to use JSON URLs that implement only the GET method. However, it doesn't work for POST methods (doesn't even enter the "onComplete" method). How can i "POST" JSON data using Actionscript 3.0?
package
{
import flash.display.Sprite;
import flash.net.URLRequest;
[code]....
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Dec 2, 2010
I am developing an application with multiple windows, all using their own web services.Is it bad practice to use more than one web service per application? If so, what are the disadvantages?
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Aug 17, 2009
We have Flex applications that connect to our ASP.NET 3.5 Web Applications and usually download lot of data. Now considering XML as transport, for every item, it transmits meta data twice for example.. instead of transferring int value as <Customer CustomerID=23/> it transmits <Customer><CustomerID>23</CustomerID></Customer> .. now here is where bandwidth conservation becomes an issue.
FLEX Can not read GZip and DEFLATE compressed HTTP Response ( So cant use any of them )I heard of some WSCompression but it requires WSE 3.0 now I am skeptical to introduce too many dependency in my hosting environment which requires too much management and overheads. Is WSE 3.0 only dll library which requires no installation on production server? Does it require rewriting all WebService attribute? Or is it simple one time configuration and more or less, anyone knows does it work with Flex ? Flex dynamically generates web services, and we use lot of its auto generated code, now if we want to support compression then do we need to rewrite lot of code?
Simplest solution I can think of is, reduce unnecessary XML tags and reduce them down to attributes to save bandwidth. Is there an easy way to achieve it, our classes has more then 50-70 properties, I understand it will be nightmare to add attributes to each property but we dont know how to do it in case of SOAP.
[Code]...
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Jun 22, 2010
Today I tried to connect to other domain.I changed url of endpoint, but it looks like flex just ignores my changes.I am sure that an old url doesn't exist in any file in src directory,I even renamed services-config.xml to services-config2.xml, cleaned and rebuilded project many times, even made a release build, but it still connects to the same domain.I have tested flex application in localhost and in the same domain, that has AMF services, but it works in the same way.My services-config.xml is:
<?xml version="1.0" encoding="UTF-8"?>
<services-config>
<services>
[code].....
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Sep 22, 2011
We are planning to use flex and Java Web Services, what is the best practice to consume web service from flex is it better to directly call the web service from Action scripts or to use remoting where java client will call the web services and later flex using remoting will the java client?
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Mar 28, 2012
I have some problem with calling web service from flex. I have service with name UserService with one method string GetData(int i). I want to call this method from flex and get data. My code is here:
protected function application1_creationCompleteHandler(event:FlexEvent):void
uService = new UserService();
uService.addEventListener("hello", echoResultHandler);
uService.GetData(1);
[Code]...
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Oct 15, 2009
What would be the best way to secure .net web services used by a flex application (both desktop and browser) that requires login? I thought about requesting the user and password in every method of the web service, and having them stored as variables in the flex app, but I don't feel like this is the most elegant way.
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Mar 30, 2010
from flex, when calling a .net web method that returns a custom class, I always recieve an ObjectProxy, even if I have the same class created on flex. How do I manage this ObjectProxy as the class I have?
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May 29, 2010
[Code]...
I want to read SOAP response in flex,am some what new to FLEX
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Mar 31, 2011
I have flex project where i want to call webservice and pass values from it to the xml file to update fusion chart xml My code is
[Code]....
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Sep 11, 2011
I had this error in a Flex Application that I couldn't figure out. Every time the app attempted to access the Web Service it returned the error Security Error Accessing URL.
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Jun 4, 2009
I am a new flex developer.I would like to know about the LCDS. What it does?How to configure it?Do I need to know Java? Can I get some sort of tutorial pdf for it? I have it on my system. I need to know about it.
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Jan 26, 2010
I am using Flex/Flash to build a UI which front-ends my Rails server application. I am using WebORB as the communication mechanism. My question should apply beyond just WebORB, however. (I think).
Specifically, it has to do with the services-config.xml file. I have a local (laptop) dev environment, a remote dev and a remote production environment. I am sick of editing the URL in the services-config.xml file, rebuilding and deploying every time I want to test in a different environment.
[Code]...
By setting the URI="/weborb" and giving it a relative path, I figured it would work. locally--but it doesn't when I deploy it to my remote dev and prod environments (Heroku). Weird.
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Jul 4, 2011
General information:
I use Flex 4.5
I use FlashBuilder 4
I generate the WSDL using JAX-WS 2.2 (via a GlassFish 3.1 AS)
I want to have a web service that returns a list of clients.
In the Java code, I have a base class for a Client, and 2 extending classes:
public class Client {
public String getName() {
return this.name;
[Code] .....
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