Actionscript 3 as3-将库映像名称传递给函数,然后将其添加到stage
我使用以下函数将一些图像从库添加到舞台Actionscript 3 as3-将库映像名称传递给函数,然后将其添加到stage,actionscript-3,bitmap,Actionscript 3,Bitmap,我使用以下函数将一些图像从库添加到舞台 function AddImage(image_name:String):void { if(image_count == 4) return; // change the following line so it uses "image_name" var defaultImage:added_1 = new added_1(100, 100); var tmpImage:Bitmap = new Bitmap(defau
function AddImage(image_name:String):void {
if(image_count == 4) return;
// change the following line so it uses "image_name"
var defaultImage:added_1 = new added_1(100, 100);
var tmpImage:Bitmap = new Bitmap(defaultImage);
tmpImage.x = 124.5 + (108.5 * image_count);
tmpImage.y = 1511.9;
addChild(tmpImage);
image_count++;
}
我希望能够将图像名称作为字符串参数传递给函数,但似乎不知道如何实现
有人能帮我吗?您要做的是通过使用getDefinitionByName获取类定义,以便创建实例,下面的代码是如何做到这一点的:
// you'll need to add this import to use getDefinitionByName
import flash.utils.getDefinitionByName;
function AddImage(image_name:String):void {
if(image_count == 4) return;
// this next line gets the class definition of the image_name
var imageClass:Class = getDefinitionByName(image_name) as Class;
// this is how you create an instance of that class
var defaultImage:BitmapData = new imageClass(100, 100);
var tmpImage:Bitmap = new Bitmap(defaultImage);
tmpImage.x = 124.5 + (108.5 * image_count);
tmpImage.y = 1511.9;
addChild(tmpImage);
image_count++;
}
更改包括导入:
导入flash.utils.getDefinitionByName
这两条线:
var imageClass:Class = getDefinitionByName(image_name) as Class;
var defaultImage:BitmapData = new imageClass(100, 100);
注--
还想提到的是,在某些情况下,如果使用Flex而不是Flash IDE进行编译,可能会遇到问题,出现以下错误:
ReferenceError: Error #1065: Variable <YourImageClassName> is not defined.
如果您有大量图像,这可能会很痛苦,但这是我找到的让编译器识别它们的唯一方法。:/哈哈
private var forCompiler1:image_1;
private var forCompiler2:image_2;