ActionScript 3.0中：编程加载图像

问题描述

我开发一个黑莓Playbock应用程序使用ActionScript 3.0。我非常非常新的与此有关。

I'm developing an Blackberry Playbock app with ActionScript 3.0. I'm very very new with this.

我有以下项目结构（我使用的Adobe Flash Builder的卷饼）：

I have the following project structure (I'm using Adobe Flash Builder "Burrito"):

项目  |  SRC    |    资产       |       图片

project | src | assets | images

在图像文件夹我有我想要加载编程几个PNG格式的图像。

On image folder I have several PNGs images that I want to load programmatically.

我怎么能这样做？

和

什么GUI组件，我必须用它来显示图像？

What GUI component I must use to show an image?

推荐答案

本例加载一个图像，并使用按钮进行更改：

This example loads one image and uses buttons to change it:

// create a Loader object to hold things that you will load
var myLoader:Loader = new Loader();

// position the Loader
myLoader.x = 250;
myLoader.y = 0;

// put something into the Loader
myLoader.load(new URLRequest("tree.jpg"));

// make the Loader visible
addChild(myLoader);

// button listeners
top_btn.addEventListener(MouseEvent.CLICK, loadPhoto);
last_btn.addEventListener(MouseEvent.CLICK, unloadAny);

// button functions
function loadPhoto(e:MouseEvent):void {
    myLoader.load(new URLRequest("sailboat.jpg"));
    addChild(myLoader);
}
// this function empties the Loader object
function unloadAny(e:MouseEvent):void {
    removeChild(myLoader);
}

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