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How websites develop now? Everything is now available online. so here are the latest trends in the web development world…
Flex 4 (Flash Builder) Cheat sheet
Another cheat sheet, this time created while messing with Flex 4. These are just some notes and may not work for all people. After trying out Flex 4, I've come to the same conclusion that nearly everyone else seems to have reached a long time ago: Flex 3 > Flex 4. But alas... once a project starts in 4, there is no going back. And so.. we must press on. StyleManager: Flex 4 differs from Flex 3 in that the StyleManager is no longer a singleton. Instead of importing mx.styles.StyleManager, simply use
styleManager.getStyleDeclaration("global") .setStyle("fontStyle","italic");
to make any style changes. Another alternative:
FlexGlobals.topLevelApplication .styleManager.getStyleDeclaration("Button") .setStyle("fontStyle","italic");
Flex 4 States First declare any states you would like your project to have: To set properties for your object during various states, use dot notation as follows: Decide when to show object in various states with: Embedding Images:
[Bindable] [Embed ('assets/someImage.png')] public var defaultIcon:Class;
Converting hex string colors to uint:
var hexString:String = "#123456"; var intColor:uint = uint("0x" + hexString.substr(1));
Application.application... where is it? To access things like parameters, what was once:
mx.core.Application.application
Is now:
FlexGlobals.topLevelApplication
Image Woes: Only JPG images can be displayed without being embedded. If you want to dynamically load an image (from an uploaded source for example) this is the easiest way. PNG and GIF formats require embedding in order to display properly. image embedding (incomplete):
[Bindable] [Embed(source="/assets/image.png")] public var imageClass:Class; ...
HttpService Errors: [RPC Fault faultString="HTTP request error" faultCode="Server.Error.Request" faultDetail="Error: [IOErrorEvent type="ioError" bubbles=false cancelable=false eventPhase=2 text="Error #2032: Stream Error. URL:xxx"]. URL:xxx”] Check to see if parameters are being passed. Then check if the parameter names are the same as the ones required by the http service. Also check if there is a time out set and consider changing to a larger number.