在Flex/AS3中,如何使用getDefinitionByName获取嵌入式资产的类定义

Question

我有一个有很多嵌入式资产的课程.

在类中,我想按名称获取资产的类定义.我尝试过使用getDefinitionByName()和ApplicationDomain.currentDomain.getDefinition()但是都不行.

例:

public class MyClass
{
  [Embed(source="images/image1.png")] private static var Image1Class:Class;
  [Embed(source="images/image2.png")] private static var Image2Class:Class;
  [Embed(source="images/image3.png")] private static var Image3Class:Class;

  private var _image:Bitmap;

  public function MyClass(name:String)
  {
    var ClassDef:Class = getDefinitionByName(name) as Class;  //<<-- Fails
    _image = new ClassDef() as Bitmap;    
  }
}

var cls:MyClass = new MyClass("Image1Class");

Answer 1

这不能解答您的问题,但它可以解决您的问题.我相信做这样的事情应该有效:

public class MyClass
{
  [Embed(source="images/image1.png")] private static var Image1Class:Class;
  [Embed(source="images/image2.png")] private static var Image2Class:Class;
  [Embed(source="images/image3.png")] private static var Image3Class:Class;

  private var _image:Bitmap;

  public function MyClass(name:String)
  {
    _image = new this[name]() as Bitmap;    
  }
}

var cls:MyClass = new MyClass("Image1Class");

我很难记住括号符号是否适用于密封类.如果没有,一个简单的解决方案是将类标记为动态.