ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working with XML
Reading and parsing XML data
Flash Player 9 and later, Adobe AIR 1.0 and later
The RSSParser class includes an xmlLoaded() method that converts the input RSS data, stored in the rssXML variable,
into an string containing HTML-formatted output, rssOutput.
Near the beginning of the method, code sets the default XML namespace if the source RSS data includes a default
namespace:
if (rssXML.namespace("") != undefined)
{
default xml namespace = rssXML.namespace("");
}
The next lines then loop through the contents of the source XML data, examining each descendant property named item:
for each (var item:XML in rssXML..item)
{
var itemTitle:String = item.title.toString();
var itemDescription:String = item.description.toString();
var itemLink:String = item.link.toString();
outXML += buildItemHTML(itemTitle,
itemDescription,
itemLink);
}
The first three lines simply set string variables to represent the title, description and link properties of the item
property of the XML data. The next line then calls the buildItemHTML() method to get HTML data in the form of an
XMLList object, using the three new string variables as parameters.
Assembling XMLList data
Flash Player 9 and later, Adobe AIR 1.0 and later
The HTML data (an XMLList object) is of the following form:
itemTitle
itemDescription
More...
The first lines of the method clear the default xml namespace:
default xml namespace = new Namespace();
The default xml namespace directive has function block-level scope. This means that the scope of this declaration
is the buildItemHTML() method.
The lines that follow assemble the XMLList, based on the string arguments passed to the function:
Last updated 6/6/2012
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