Re: [Flashcoders] Can u combine....
I linke your solution and though I usually prefer to reuse objects such as
loader, I'm not totally against creating a loader per request since in some
situations it can be handy. But let me tell you, you have a subtle bug in
your code.
You need to pin down your loader somehow, because otherwise, since it's
local to the function, it could be garbage collected. I was under the
impression that an active loader would not be collected. It's rare that this
happens, but it's possible. I've learned this the hard way, and it took a
while and some hair pulling to figure out where the problem was (I was using
a Loader object to load images, but the same principle applies to
URLLoaders).
This could be fixed by storing your loader in an instance-scoped array, and
then removing it (and its handlers) when the loader's job is done (either
because it succeded or failed), using the event.target reference to find the
loader in the array.
Cheers
Juan Pablo Califano
2010/2/26 Valentin Schmidt v...@dasdeck.com
Juan Pablo Califano wrote:
Another option:
function loadXML(dfile:String,arg1:Object,arg2:Array):void
{
urlLoader.load(new URLRequest(dfile));
urlLoader.addEventListener(Event.COMPLETE, function(e:Event):void {
parseXml(e,arg1,arg2);
});
}
and another option:
save this as file myURLLoader.as
package {
import flash.net.URLLoader;
public class myURLLoader extends URLLoader {
public var params:Object;
}
}
and then use something like this:
function loadXML(dfile:String):void
{
var urlLoader:myURLLoader = new myURLLoader();
// add arbitrary custom parameters here
urlLoader.params = {foo:23, bar:hello world};
urlLoader.load(new URLRequest(dfile));
urlLoader.addEventListener(Event.COMPLETE, parseXML);
}
function parseXML(e:Event):void
{
trace(e.target.params.foo);
trace(e.target.params.bar);
xmlFile:new XML(e.target.data);
// ...
}
cheers,
valentin
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Re: [Flashcoders] Can u combine....
Can you set a private var other functions can use?
--
Kenneth Kawamoto
http://www.materiaprima.co.uk/
On 26 February 2010 14:24, Lehr, Theodore ted_l...@federal.dell.com wrote:
..how to combine:
function loadXML(dfile:String):void
{
urlLoader.load(new URLRequest(dfile));
urlLoader.addEventListener(Event.COMPLETE, parseXML);
}
function parseXML(e:Event):void
{
xmlFile:new XML(e.target.data);
totalBars = xmlFile.children().length();
}
My goal is to send the first function additional parameters that would be
used in additonal function calls right now I do not see how to send those
on to parseXML my thought was if there was a way to combine these two
functions - it would be easier
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RE: [Flashcoders] Can u combine....
Ted - this should do what you're after:
package
{
public class MyData
{
private var _myVarA:String;
private var _myVarB:Number;
private function loadXML(dfile:String, myValueA:String,
myValueB:Number):void
{
_myVarA = myValueA;
_myVarB = myValueB;
urlLoader.load(new URLRequest(dfile));
urlLoader.addEventListener(Event.COMPLETE,
parseXML);
}
private function parseXML(e:Event):void
{
//Use _myVarA and _myVarB here.
xmlFile:new XML(e.target.data);
totalBars = xmlFile.children().length();
}
}
}
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
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Re: [Flashcoders] Can u combine....
Another option:
function loadXML(dfile:String,arg1:Object,arg2:Array):void
{
urlLoader.load(new URLRequest(dfile));
urlLoader.addEventListener(Event.COMPLETE, function(e:Event):void {
parseXml(e,arg1,arg2);
});
}
function parseXML(e:Event,arg1:Object,arg2:Array):void
{
xmlFile:new XML(e.target.data);
totalBars = xmlFile.children().length();
}
This method has a drawback (and is usually frowned upon) because you cannot
remove the listener. In this case, though, I don't think this is a problem
(the loader seems to be owned by the class)
Cheers
Juan Pablo Califano
2010/2/26 Lehr, Theodore ted_l...@federal.dell.com
..how to combine:
function loadXML(dfile:String):void
{
urlLoader.load(new URLRequest(dfile));
urlLoader.addEventListener(Event.COMPLETE, parseXML);
}
function parseXML(e:Event):void
{
xmlFile:new XML(e.target.data);
totalBars = xmlFile.children().length();
}
My goal is to send the first function additional parameters that would be
used in additonal function calls right now I do not see how to send
those on to parseXML my thought was if there was a way to combine these
two functions - it would be easier
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Re: [Flashcoders] Can u combine....
Juan Pablo Califano wrote:
Another option:
function loadXML(dfile:String,arg1:Object,arg2:Array):void
{
urlLoader.load(new URLRequest(dfile));
urlLoader.addEventListener(Event.COMPLETE, function(e:Event):void {
parseXml(e,arg1,arg2);
});
}
and another option:
save this as file myURLLoader.as
package {
import flash.net.URLLoader;
public class myURLLoader extends URLLoader {
public var params:Object;
}
}
and then use something like this:
function loadXML(dfile:String):void
{
var urlLoader:myURLLoader = new myURLLoader();
// add arbitrary custom parameters here
urlLoader.params = {foo:23, bar:hello world};
urlLoader.load(new URLRequest(dfile));
urlLoader.addEventListener(Event.COMPLETE, parseXML);
}
function parseXML(e:Event):void
{
trace(e.target.params.foo);
trace(e.target.params.bar);
xmlFile:new XML(e.target.data);
// ...
}
cheers,
valentin
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