使用裝載程式載入外部影象 SWF

1. 建立一個 Loader 物件：

   var loader:Loader = new Loader();   //import 
   

2. 在載入器上新增偵聽器。標準的是完整的和 io /安全性錯誤

   loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loadComplete); //when the loader is done loading, call this function
   loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, loadIOError); //if the file isn't found
   loader.contentLoaderInfo.addEventListener(SecurityErrorEvent.SECURITY_ERROR, loadSecurityError); //if the file isn't allowed to be loaded
   

3. 載入所需的檔案：

    loader.load(new URLRequest("image.png"));
   

4. 建立事件處理程式：

    function loadComplete(e:Event):void {
        //load complete
        //the loader is actually a display object itself, so you can just add it to the display list
        addChild(loader) 
        //or addChild(loader.content) to add the root content of what was loaded;
    }
   
    function loadIOError(e:IOErrorEvent):void {
        //the file failed to load, 
    }
   
    function loadSecurityError(e:SecurityError):void {
        //the file wasn't allowed to load
    }
   

使用 Loader 類載入是非同步的。這意味著在呼叫 loader.load 後，應用程式將在檔案載入時繼續執行。在載入程式排程 Event.COMPLETE 事件之前，你的載入程式內容不可用。

需要匯入：

import flash.display.Loader;
import flash.events.Event;
import flash.events.IOErrorEvent;
import flash.events.SecurityErrorEvent;
import flash.net.URLRequest;