I am developing an eLearning application in Flex which shows flv movies hosted on a webserver. If the app has many simultaneous users the download demand is quite high because a lot of users need to download the (same) movie(s). Is there a way I can precache this data in my flex client like storing it in the browsercache or something so that for later sessions the bandwidth demand is less high?
View 1 Repliesi pass text strings from a configuration file into my Flex app, one of the strings i pass in is a mailto link which i use to allow users of my app to send me feedback. I recently needed to change this link however when i updated the link in my config file the change did not happen instantly in my Flex app. In fact i had to clear my cache (both browser and flash player) before the change showed up. This of course is fine for me but how can i be sure that users of the application also get the updated content? Is there a way to force a refresh of data loaded into my swf on other users browsers?
Finally is this an issue with my browser cache or the Flash player cache? Does the flash player only keep such data, like my email address, in memory while the app is in use and then clear once it is closed or does it cache this data for the next time the user wants to use the app?
I have this PHP page that lists several people. When someone clicks on one of the people they are sent to another PHP page that has their video greeting in a .swf embedded into the page. This works by the php writing the path to the greeting video to the xml file that the .swf loads and plays.
Well in firefox it works perfect, but in IE when they try to click on another greeting the original greeting still plays. Its like the swf is caching the first greeting and refresh of the page does nothing to alleviate this. Is this a problem with the swf caching? or XML caching? or am I totally clueless?
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I have a project that is for several customers, the only difference is in the DB, everything else looks the same, except for the main page's text. That is loaded from an external swf file. I created a library, compiled it as an swc, imported it and using it as an RSL. The problem is that if once I've opened the page, and afterwards update the rsl (because changes in the text are needed), than it's already cached by the browser (not the flashplayer's cache but we shouldn't discuss this please!) and the updated swf won't be loaded. If I use it as an external, the page won't even start up (the browser says it's loaded, but it's blank, not even the loading progess bar of flex appear)
<local:MainPage includeIn="default" currentState="{MainPageState}" id="Page"
width="100%" height="100%" />
this is the code on the main page, if I comment this out, than the whole thing loads, even with the use of the "external" link-type. in the design view, I see the component, but I get a warning for the library:
Design mode could not load MainPage.swc. It may be incompatible with this SDK, or invalid.DesignAssetLoader.CompleteTimeout)
I've created a Flex application and the size of the swf file is ~900KB. My trouble is that the files are not getting cached. When I launch the application for the second time, the swf file is fetched again from the server. I'm including the swf file in a jsp, and I'm not modifying any HTTP Caching Headers. I assumed that the swf files will be cached automatically. Isn't it so? How do I forcefully cache the file? Do I need to provide anything in the MXML code or just a response.setHeader("Cache-Control","max-age=100"); is enough? Can anything be done from the flex side itself?
View 2 RepliesI'm new to Flex and want to learn about how to implement client-side caching for data that is repeatedly requested from the server.
Let's focus on a simple example to discuss caching. Take a Flex application having several screens, where each screen plots a line series (of x and y data). The user can switch between the screens, and each time a screen is visited or re-visited, numerical arrays for both x and y data are requested from the server. The values of the x and y data on the server, of course, never change.
I want to learn what techniques are available that could be used to implement caching in the browser or AIR application such that once the x and y data is downloaded the first time, the application pulls these arrays from cache when re-visiting this screen in the future.
I have the following problem, I have a flex application that works as a frontend in a client-server-application. In my application I have two sliders and a chart that moves when I drag the sliders, now when I have the following positions
slider 1: 10
slider 2: 20
a request is sent to the server and the response back to my flash. When I now change the sliders to
slider 1: 10
slider 2: 30
another request is sent to the server, because we have changed the position of slider 2. When I now turn the sliders again to the first position.
slider 1: 10
slider 2: 20
no request is sent to the server and the chart is moved correctly because the flash seems to know what he will receive, I think the application has cached the result. This effect only works when I open the flash application in the flash player. When I open it in the browser every slider position leeds to another request to the server. Is there a way to enable the caching also when I open it in the browser?
I'm attempting to create a Flex Project that will cause the Flash Player to cache the Flex framework. Flex Builder comes with Flex SDK 3.2.0.3958 and setting the Framework Linkage to use Runtime shared Library (RSL) under Project Properties -> Flex Build Path will separate the framework from my main application and I see that my project's bin-debug directory contains framework_3.2.0.3958.swf and *.swz for distribution.Flex SDK 3.4 fixes a few bugs, so I configured it as another available sdk and set it as the default SDK. When I compile, I expect the bin-debug directory to contain framework_3.4.0.9271.swf and *.swz; however, Flex Builder is still writing framework_3.2.0.3958.swf and *.swz.
View 2 RepliesI've got the following Javascript for creating the HTML of video player. I use Javascript because this is the only way I can tell the player which video to play.
[Code]...
The problem is FlexPlayer.swf is loading every time and I need to cache this SWF file. Maybe I should use Javascript constructor but don't know how in this case.
i am using an itemRenderer in mx:list, it has many text fields and combos, i use this item renderer to edit items in array collection, each item in the arrayCollection is of type Action which comes from BlazeDS remoting as a valueObject.my problem is when i add new item of type Action to the list dataProvider (ArrayCollection) by this code
myList.dataProvider.addItem(new Action());
the new item tooks the same data from its previous item.
I have a Flex 3 application that makes a call to a webservice. That webservice calls returns a 2 Mb file that flex reads and parses. The problem is that it takes sometimes 45 seconds. I was wondering if there is a way to cache the response form the webservice? So the next time I load the flash movie it doesn't have to re-download the full file but just the updated data.
View 1 RepliesI'm writing a flex application that polls an xml file on the server to check for updated data every few seconds, and I'm having trouble preventing it from caching the data and failing to respond to it being updated.
I've attempted to set headers using the IIS control panel to use the following, without any luck:
CacheControl: no-cache
Pragma: no-cache
I've also attempted adding a random HTTP GET parameter to the end of the request URL, but that seems like it's stripped off by the HttpService class before the request is made. Here's the code to implement it:
http.url = "test.xml?time=" + new Date().getMilliseconds();
And here's the debug log that makes me think it failed:
(mx.messaging.messages::HTTPRequestMessage)#0
body = (Object)#1
clientId = (null)
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I have a List and the item renderer displays an image. Whenever you scroll the list, and the item renderer refreshes, it redownloads the image. Causing there to always be a delay. Is there some way of caching it so it doesn't have to redownload every time causing a delay in showing the image every time you scroll the list?
View 3 RepliesI have an online flex app that is served via an html page. Its critical that the flex app is refreshed in the user's cache every time that it changes. To help ensure that this happens, I change the name of the swf file every time that it changes. In addition, the html page contains the following lines of code:
<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
<META HTTP-EQUIV="Expires" CONTENT="-1">
Using these techniques, FF and IE always seem to grab the latest swf file every time. Google chrome, however, NEVER gets the latest swf file - the only way to get the update is to hit shift+refresh in chrome.
Is there a fail-safe way for me to ensure that the latest swf file is always delivered to the browser?
I have 2 Spark List with custom Item Renderers. I'm working on an application that enables users to grag these Item Renders from one List to the other. When one of these IR is dropped in a new position or in another List, I'm updating the dataproviders: remove the object from one list's dataprovider and adding it to other's dataprovider. This si working ok. The problem is that some times the IR is cached and it doesn't show the correct information, based on its data.
How can I force the lists to never cache IRs and all the times I modify the dataprovider, all item renders re-create all IRs (performance won't be an ossue since I have few items on each list)
In Flash what would be wiser? To use a PNG or import the vector and cache it as bitmap?
View 1 RepliesI have a flash application and I want my users not to be able to do caching in their flash players.I couldn't find the code that disables the option of caching for them.Does anyone have the line I need to add (and where) which will disable the flash caching?
View 1 RepliesI am doing a flash that getting images from Database. Here is my problem, if I dont close my flash, Whenever I update the images in Database, flash doesnt update the image at the same time. (if I have the image at frame 1, then i go to frame 2, then i update Database, now i go back to frame 1 again, the image is not updated.) It seems like the Loader is caching the image. How can I update my image? Anybody knows why?
View 5 RepliesJust to warn everyone using Windows 7 that in some cases Flash uses code that seems to be cached. At a certain point in time I knew my code was OK, but still it did not work correctly. I started looking at my trace results and suddenly discovered that it outputted code that was not in my sourcefile anymore.
To solve it, I renamed all AS files and then everything worked fine again.
I have updated the crossdomain.xml security settings for my site - but it seems that the older version is being cached in both IE and Chrome.I've checked the headers sent by the server and it's not sending any cache control headers that would be forcing the browsers to be caching crossdomain.xml.
In an attempt to get around the issue I've also linked to my crossdomain.xml file in an iframe on the site. This hasn't worked though and flash still seems to be using the old security settings.
I would like to create some AMF files for caching on a server.
I am wondering if the best approach is to reconfigure BlazeDS to create these files so it spits out local files?
Or if is possible to use as3 itself to create the files.
I have a .swf in my rails application, located here:
/public/bin/editor/Editor.swf
It works fine, with one flaw, it gets cached often, so when we release a new version we are usually needing to tell the customers to clear their cache when they experience issues. My question is, how could I force the .swf to break cache when I release a new version? Something like:
/public/bin/editor/Editor.swf?timestamp=124158512132
I tried the above, but it did not seem to work.
I have a web application developped using as3. The problem is that these application loads some image files, and add my watermark to them.What is happening is that these images are being cached by the browser, allowing the users who know how to access the tmp folder, to get these files, without my watermark.Adding the watermark previously to the image, is not an alternative for me, due the fact that when the a premium user is logged in the watermark is not added.How can I disable the caching?
View 3 RepliesI am doing a flash that getting images from Database. Here is my problem, if I dont close my flash, Whenever I update the images in Database, flash doesnt update the image at the same time. (if I have the image at frame 1, then i go to frame 2, then i update Database, now i go back to frame 1 again, the image is not updated.) It seems like the Loader is caching the image. How can I update my image?
View 3 RepliesWhen Im loading an xml document, it's as if flash caches this document, and uses that cached version all the way (disregarding how many times I open and close the app) ... well, that's so until I open the xml file inside the browser (IE) and ctrl-F5 to refresh; that's when flash starts getting the updated xml. What's up with that? Is there a way to prevent flash from caching??
View 2 Repliesedit: Resolved; my ActionScript function for parsing the mySQL results didn't correctly interpret a recently modified column, and the corrupted new output happened to be identical to the old output.
I have created an application that accesses a PHP/mySQL database, but it caches old information.
I used the workaround from Adobe's website, where I append '+ new Date().getTime()' to the URLRequest String, but the application continues to use the old data.
When I trace the URLRequest String and C&P it into a browser window, however, I receive the correct data.
I have a Flash file that is linked to 14 xml files using the E4X method. To keep the network activity to a minimum, I have it set up so that the xml files don't load until the relevant button is clicked (rather than have them all load at the beginning). I've been told I could further reduce network activity by using something called browser caching. There seem to be methods called "conditional HTTP" and "304 caching" but I can't really find a coherent tutorial on how to add this to the code.
View 5 RepliesUsing Actionscript 2, I'm a bit new to all the scripting stuff.I have a loader loading a couple of flash movies like this:loadMovieNum("sound.swf", 1);loadMovieNum("logo.swf", 2);loadMovieNum("mainmenus.swf", 3);Those 3 movies I need to go to the main section of the site. However, I would like the loader to also load the remaining movies needed to further navigate the site, but without displaying them now Kind of like 'caching' the rest of the site, so when the access is needed, there's no load time.
View 9 RepliesHow do I prevent Flash from caching loaded images?
In my app a user make a change to an image and saves it back to the server as the same name. Flash then reloads the section and the new image should be reflected. However, it is not. The image looks fine on the server and is updated on the server...
I've got a parent SWF that loads in a couple child SWFs. Even though my browser cache is cleared -- it's disabled, in fact -- reloading, or even restarting, the browser doesn't trigger the newest version of the child SWFs to load into the parent SWF. I can even delete the SWF off the FTP server, and it still gives me the last version that was up there.
What's caching the child SWFs, and how do I force them to refresh on my end? I'm not too concerned about the end user, because once the site development is over, the SWF files won't change very often. (They're all loading in XML files that have the cache disabled via PHP cache control and expires headers.)
I'm primarily using Firefox on PC and Mac, but it seems to do the same thing on IE/PC and Safari/Mac. The PC is using my ISP's DNS, and the Mac is using OpenDNS... not sure if that has anything to do with it. The site is hosted on Rackspace Cloud.