actionscript-3 - ActionScript - BeginBitmapFill 使用 BitmapData 库资产？

Question

我已将图像资源 (Background.jpg) 导入到我的 Flash CS5 库中，并将其作为基类型为 BitmapData 的类 Bitmap 导出到 ActionScript。

以下代码返回以下错误：

backgroundTexture = new Shape();
backgroundTexture.graphics.beginBitmapFill(Background);
backgroundTexture.graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight);
backgroundTexture.graphics.endFill();

1067：将 Class 类型的值隐式强制转换为不相关的类型 flash.display:BitmapData。

那么错误是什么？

Answer 1

I have more experience with Flex than Flash, so I don't know the UI details, but I believe what you want is:

var background:BitmapAsset = new Background() as BitmapAsset;
backgroundTexture.graphics.beginBitmapFill(background.bitmapData);

This is assuming that your UI generates the following ActionScript or its equivalent:

[Embed(source="Background.jpg")]
public var Background:Class;

See:

• http://www.adobe.com/devnet/flash/quickstart/loading_images_library_as3.html
• http://livedocs.adobe.com/flex/3/html/help.html?content=embed_4.html

Answer 2

您只需要一个BackgroundBitmapData 对象的实例：

backgroundTexture.graphics.beginBitmapFill(new Background());

Background是对类的引用。new Background()创建类的一个实例。