Got a question for you all! I'm trying to make a navigation system for my website where each nav item is loaded as an external .swf. Thanks to another user on this site, I was able to get that functionality in place. The problem is I want to add a preloader for these external swfs as well.
The code I'm working with is this:
var loadedSWF:Loader = null;
/**
* Loads an SWF and adds it to container once complete
* @param file The URL to the SWF to load
* @param container The container to add the SWF to
*/
function loadSWF(file:String, container:MovieClip=null):void
{
if(container == null) container = MovieClip(root);
// removes the previously loaded SWF
if(loadedSWF != null)
{
if(loadedSWF.parent) loadedSWF.parent.removeChild(loadedSWF);
}
var req:URLRequest = new URLRequest(file);
loadedSWF = new Loader();
loadedSWF.load(req);
addChild(loadedSWF);
}
menu_mc.test_btn.addEventListener(MouseEvent.CLICK, _click);
function _click(e:MouseEvent):void
{
loadSWF("testmovie.swf");
loadedSWF.x = 0;
loadedSWF.y = 125;
var otherindex = getChildIndex(Border);
setChildIndex(loadedSWF, otherindex + 1);
}
So far everything I've tried has come up short. I can get a preloader working if I don't use a null loader, but when I do that I'm not sure how to get it to remove the assets being used when loading another .swf - everything just stacks and bogs down the site. If I try and put together a preloader attached to the above code, I get errors because I'm making calls to a null object. Sorry to be such a newbie, I've only just begun to wrap my head around flash. I appreciate any help!
Edit: Here's a quick look at my somewhat jumbled version that includes a preloader, but doesn't work due to the null loader:
var loadedSWF:Loader = null;
/**
* Loads an SWF and adds it to container once complete
* @param file The URL to the SWF to load
* @param container The container to add the SWF to
*/
function loadSWF(file:String, container:MovieClip=null):void
{
if(container == null) container = MovieClip(root);
// removes the previously loaded SWF
if(loadedSWF != null)
{
if(loadedSWF.parent) loadedSWF.parent.removeChild(loadedSWF);
}
loadedSWF.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressHandler);
loadedSWF.contentLoaderInfo.addEventListener(Event.COMPLETE, loadProdComplete);
var req:URLRequest = new URLRequest(file);
loadedSWF = new Loader();
loadedSWF.load(req);
function loadProdComplete(e:Event):void {
trace("swf file loaded");
//remove the preloader from container clip
removeChild(preLoader);
// add the loaded swf to container clip
addChild(loadedSWF);
currentSWF = MovieClip(loadedSWF.content);
currentSWF.gotoAndPlay(1);
currentSWF.addEventListener(Event.ENTER_FRAME , checkLastFrame);
function checkLastFrame(e:Event):void {
if (currentSWF.currentFrame == currentSWF.totalFrames) {
currentSWF.stop();
// trace("stopped");
}
}
}
var preLoader:loader = new loader();
//position the loading bar
preLoader.x = 155;
preLoader.y = 185;
addChild(preLoader);
function onProgressHandler(event:ProgressEvent){
var dataAmountLoaded:Number=event.bytesLoaded/event.bytesTotal*100;
preLoader.bar.scaleX = dataAmountLoaded/100;
preLoader.lpc.text= int(dataAmountLoaded)+"%";
trace(preLoader.bar.scaleX );
}
}
var currentSWF:MovieClip = new MovieClip();
menu_mc.test_btn.addEventListener(MouseEvent.CLICK, _click);
function _click(e:MouseEvent):void
{
loadSWF("testmovie.swf");
loadedSWF.x = 0;
loadedSWF.y = 125;
var otherindex = getChildIndex(Border);
setChildIndex(loadedSWF, otherindex + 1);
}
Edit #2: Functional code, but now receiving the following output error whenever I hit the button. The swfs load and unload just fine, but if anyone knows how I could clean it up to avoid the output error I'd like to get it as smooth as possible!:
ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller. at flash.display::DisplayObjectContainer/removeChild() at MethodInfo-8()
var container:MovieClip = new MovieClip();
var currentSWF:MovieClip = new MovieClip();
var swfLoader:Loader = new Loader();
function launchSWF(vBox, vFile):void{
//vBox.addChild(swfLoader);
var swfURL:URLRequest = new URLRequest(vFile);
swfLoader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, onProgressHandler);
swfLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, loadProdComplete);
swfLoader.load(swfURL);
function loadProdComplete(e:Event):void {
trace("swf file loaded");
vBox.removeChild(preLoader);
vBox.addChild(swfLoader);
currentSWF = MovieClip(swfLoader.content);
currentSWF.gotoAndPlay(1);
currentSWF.addEventListener(Event.ENTER_FRAME , checkLastFrame);
function checkLastFrame(e:Event):void {
if (currentSWF.currentFrame == currentSWF.totalFrames) {
currentSWF.stop();
// trace("DONE");
}
}
}
var preLoader:loader = new loader();
preLoader.x = 155;
preLoader.y = 185;
vBox.addChild(preLoader);
function onProgressHandler(event:ProgressEvent){
var dataAmountLoaded:Number=event.bytesLoaded/event.bytesTotal*100;
preLoader.bar.scaleX = dataAmountLoaded/100;
preLoader.lpc.text= int(dataAmountLoaded)+"%";
trace(preLoader.bar.scaleX );
}
}
test_btn.addEventListener(MouseEvent.CLICK, _load);
function _load(e:Event):void{
swfLoader.unloadAndStop();
var swfFile:String = 'test.swf';
launchSWF(container, swfFile);
//put it on stage
addChild(container);
}
