大家都有问题!我正在尝试为我的网站制作导航系统,其中每个导航项都作为外部.swf加载。感谢此网站上的another user,我能够获得该功能。问题是我想为这些外部swfs添加预加载器。
我正在使用的代码是:
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);
}
到目前为止,我所尝试的一切都很短暂。如果我不使用null加载器,我可以得到预加载器,但是当我这样做时,我不知道如何在加载另一个.swf时删除正在使用的资产 - 一切只是堆栈并陷入网站。如果我尝试将上面代码附加的预加载器放在一起,我会收到错误,因为我正在调用null对象。很抱歉成为这样的新手,我才刚刚开始围绕闪光灯。我感谢任何帮助!
编辑:这里有一个快速浏览我的有点混乱的版本,包括一个预加载器,但由于空加载器不起作用:
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);
}
编辑#2:功能代码,但每当我按下按钮时,现在都会收到以下输出错误。 swfs加载和卸载就好了,但如果有人知道我怎么能清理它以避免输出错误我想尽可能顺利!:
ArgumentError:错误#2025:提供的DisplayObject必须是调用者的子级。 在flash.display :: DisplayObjectContainer / removeChild() 在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);
}
答案 0 :(得分:0)
不要使用null,只需使用Loader类的unload方法。
Loader.unload()