通過ComboBox AS3加載外部SWF

Question

我正在嘗試創建一個ComboBox，該組件將使用Flash CS5的ActionScript 3.0將外部SWF加載和卸載到舞台上。

當前，組合框中有2個列表項：“主頁”和“關於”。 從ComboBox中選擇“主頁”或“關於”選項后，選中后將同時顯示“主頁”和“關於SWF”。

我只希望僅在選中時顯示1 SWF，而不是全部。

menuList.addItem({label:"Choose"});
menuList.addItem({label:"Home",path:"home_load.swf"});
menuList.addItem({label:"About",path:"about.swf"});

menuList.addEventListener(Event.CHANGE, Home);
menuList.addEventListener(Event.CHANGE, About);

var loader:Loader = new Loader();
loader.unloadAndStop();


function Home(e:Event):void
{
    if (e.currentTarget.selectedItem.path)
    {
        var loader:Loader = new Loader();
        //loader.unloadAndStop();
        loader.load(new URLRequest("home_load.swf"));

        addChild(loader);
        //loader.unloadAndStop();
        loader.x = 0;
        loader.y = 190;
    }
}

function About(e:Event):void
{
    if (e.currentTarget.selectedItem.path)
    {
        //loader.unloadAndStop();
        var loader:Loader = new Loader();
        loader.load(new URLRequest("about.swf"));

        addChild(loader);
        //loader.unloadAndStop();
        loader.x = 0;
        loader.y = 190;
    }
}

Answer 1

swf文件完成加載后，您可能必須執行addChild。

//These listeners detect when the file has finished loading, and if the
//correct file is loaded.
swfLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, finishLoading);
swfLoader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, errorHandler);

//The load method then loads the SWF file into the loader object.
swfLoader.load(my_url);

//This function adds the external SWF to the stage.
function finishLoading(loadEvent:Event) {
addChild(loadEvent.currentTarget.content);
}

//This function displays a message if the file is not found.
function errorHandler(errorEvent:Event):void {
trace("file missing");
}