1.获得某个实例对象的类名:getQualifiedClassName (实例名字符串表达式);
stage.addEventListener(MouseEvent.MOUSE_OVER, mouseOverHandle);
function mouseOverHandle(e:Event):void {
trace("over");
// 返回instance**之类的
trace(e.target.name);
//返回元件名
trace(getQualifiedClassName(e.target));
}
2.获得某个实例对象的类:constructor
dynamic class A {};
trace(A.prototype.constructor);// [class A]
trace(A.prototype.constructor == A);// true
var myA:A = new A();
trace(myA.constructor == A);// true
3.根据类名获得类:getDefinitionByName(类名);
package {
import flash.display.DisplayObject;
import flash.display.Sprite;
import flash.utils.getDefinitionByName;
public class GetDefinitionByNameExample extends Sprite {
private var bgColor:uint = 0xFFCC00;
private var size:uint = 80;
public function GetDefinitionByNameExample() {
var ClassReference:Class = getDefinitionByName("flash.display.Sprite") as Class;
var instance:Object = new ClassReference();
instance.graphics.beginFill(bgColor);
instance.graphics.drawRect(0, 0, size, size);
instance.graphics.endFill();
addChild(DisplayObject(instance));
}
}
}
4.用得到的类实例化对象:一般中间要用一个无类型变量传递类,进行实例化;如:
var i = 0;
var c:* = getDefinitionByName(getQualifiedClassName("MyClass" + i));
var myClass:*=new c();
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