Hi,
I might be missing something, but AFAICT, even if all of that works perfectly,
you still don't know if your code has caused some Flex framework code to attach
a listener to the stage, a Timer, a network class, etc. IOW, I think you can
run code like:
import mx.controls.ComboBox;
var cb:ComboBox = new ComboBox();
addChild(cb);
trace(cb.dropDown);
IIRC, simple code like this can pin a module into memory, and your clean up
code won't catch it.
HTH,
-Alex
On 5/24/18, 1:30 PM, "aceinc" <pa...@compuace.com> wrote:
Alex, I have implemented the code to destroy event listeners in all of my
widgets, as well as the calling class. The calling class is called from the
root as a module. Before unloading the module I do the following to try and
remove all event listeners;
private function clearModuleEvents(mdlModule:ModuleLoader):void
{
trace('Starting clearModuleEvents')
for(var idx:int = mdlModule.numChildren - 1; idx >= 0; idx--)
{
trace('idx=' + idx + 'isContainer(objChild)='
+isContainer(objChild) +
'isContainer(mdlModule.getChildAt(idx))=' +
isContainer(mdlModule.getChildAt(idx)));
var objChild:DisplayObject = mdlModule.getChildAt(idx);
trace('flash.utils.getQualifiedClassName(objChild)=' +
flash.utils.getQualifiedClassName(objChild));
var childContainer:DisplayObjectContainer = objChild as
DisplayObjectContainer;
clearChildEvents(childContainer);
if ("clearEvents" in objChild)
{
var fncClearEvents:Function = objChild["clearEvents"];
if (objChild.hasOwnProperty('id')) trace('Clearing Events
in==>>' +
objChild['id']);
fncClearEvents();
fncClearEvents = null;
}
if ("dataProvider" in objChild)objChild["dataProvider"] = null;
if ("selectedIndex" in objChild)objChild["selectedIndex"] = -1;
if ("selectedItem" in objChild)objChild["selectedItem"] = null;
if ("value" in objChild)objChild["value"] = null;
}
objChild = null;
trace('Finished clearModuleEvents')
}
private function clearChildEvents(dpsContainer:DisplayObjectContainer):void
{
for(var idx:int = dpsContainer.numChildren - 1; idx >= 0; idx--)
{
var objChild:DisplayObject = dpsContainer.getChildAt(idx);
if (isContainer(objChild))
{
var childContainer:DisplayObjectContainer = objChild as
DisplayObjectContainer;
clearChildEvents(childContainer);
}
if ("killMe" in objChild)
{
var fncKillMe:Function = objChild["killMe"];
if (objChild.hasOwnProperty('id')) trace('Killing Events
in==>>' +
objChild['id']);
fncKillMe();
fncKillMe = null;
}
else if ("clearEvents" in objChild)
{
var fncClearEvents:Function = objChild["clearEvents"];
if (objChild.hasOwnProperty('id')) trace('Clearing Events
in==>>' +
objChild['id']);
fncClearEvents();
fncClearEvents = null;
}
if ("dataProvider" in objChild)objChild["dataProvider"] = null;
if ("selectedIndex" in objChild)objChild["selectedIndex"] = -1;
if ("selectedItem" in objChild)objChild["selectedItem"] = null;
// if ("value" in objChild)objChild["value"] = null;
objChild = null;
}
}
--
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