Xu Cui – Page 57 – Xu Cui while(alive){learn;}

516 Stories by Xu Cui

Learning Employee Directory 5. Events

Return to table of contents ED defines 4 custom events,CommandCompleteEventCommandProgressEventDataSynchronizationEventSelectedItemChangeEvent The main job of these custom events seems to define constant (say public static const COMPLETE : String = &

February 15, 2008 0 23 sec read

Learning Employee Directory 2.2 Commands

Return to table of contents All command classes are inherited from class Command. By name, commands perform something. Every command has execute() which does the job, and emits progress and complete event, and possibly error event. The base class, Co

February 13, 2008 0 33 sec read

Learning Employee Directory 3.3 Component

Return to table of contents 1. CustomAutoComplete This component can be very useful. It pops up a list of suggestions based on characters entered by the user. This is a very simple example on how to use it: <controls:CustomAutoComplete id="se

February 13, 2008 0 30 sec read

Learning Employee Directory 4. Flow

Return to table of contents After the application is initialized, Event “applicationComplete” is dispatched and the following function is called: // in employeedirectory.mxml ui.init(); Go to ApplicationUI.mxml, we find ui.init() issues t

February 13, 2008 0 10 sec read

Learning Employee Directory 5.1 Event bubble

Return to table of contents In ApplicationUI.mxml (init()), you will find the following two lines: // in ApplicationUI.mxml, in init() titleControls.addEventListener( "showHelp", showHelpScreen ); addEventListener( "close", closeP

February 12, 2008 0 24 sec read

Learning Employee Directory 3.2 Size

Return to table of contents Which line(s) in the code determines the size of the application? This seemingly simple question did take me some time. The answer lines in the following two lines: // in ApplicationUI.mxml <mx:vbox id="contentBox&

February 12, 2008 0 18 sec read

Learning Employee Directory 2.1 Singleton pattern

Return to table of contents While reading ED code, I frequently encounter singleton pattern. A singleton class is a class you can only instantiate once and it is useful to store application-wide data (say window position). ApplicationModel and all ma

February 11, 2008 0 41 sec read

Learning Employee Directory 3.1 Style

Return to table of contents CSS is very convenient to control the appearance of the user interface. Let’s see the following code snippet inside employeedirectory.css too see how to use styling. .appHelpButton { up-skin: Embed("/embed_asset

February 11, 2008 0 25 sec read

Learning Employee Directory 3. UI

Return to table of contents When I downloaded and launched ED, I was impressed by its elegant user interface. So how is implemented? The relevant files are: And the hierarchy of UI is shown below. I expand each custom component (except EmployeeView a

February 9, 2008 0 2 min read