Flex Cookbook --13.11深度拷贝ArrayCollection

<?xml version="1.0" encoding="utf-8"?> 
<!--对象的深度拷贝--> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="alertObj();"> 
  <mx:Style> 
    Application{fontSize:12px;} 
  </mx:Style> 
  <mx:Script> 
    import mx.controls.Alert; 
    import mx.utils.ObjectUtil; 
     
    public function alertObj():void 
    { 
      var objOne:Object ={name:"张三", data:{first:"张", second:"三"}}; 
      var objTwo:Object =ObjectUtil.copy(objOne);//关键代码 
      objOne.data.first = "李";//对原始对象的修改，不会影响第二个 
      Alert.show("objOne="+objOne.data.first+"\nobjTwo="+objTwo.data.first);// 
    }    
  </mx:Script> 
</mx:Application>

<?xml version="1.0" encoding="utf-8"?> 
<!--特定类对象的深度拷贝--> 
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="alertObj();"> 
  <mx:Style> 
    Application{fontSize:12px;} 
  </mx:Style> 
  <mx:Script> 
    <![CDATA[ 
    import mx.controls.Alert; 
    import mx.utils.ObjectUtil; 
    import mx.collections.ArrayCollection; 
     
    public function alertObj():void 
    { 
      var zl:Object={name:"赵六",age:29}; 
      var ac:ArrayCollection = new ArrayCollection([ 
                    {name:'张三', age:20}, 
                    zl,    
                    {name:'李四', age:31},    
                    {name:'王五', age:27} 
                    ]); 
      var newAC:ArrayCollection = new ArrayCollection(copyOverArray(ac.source)); 
        
      //可以如下验证下 
      //ac[2].name = "改变"; 
      //Alert.show(newAC[2].name); 
    }    
     
    //对一个对象数组深度拷贝 
    private function copyOverArray(arr:Array):Array { 
      var newArray:Array = new Array(); 
      for(var i:int;i<arr.length; i++){ 
        newArray.push(copyOverObject(arr[i], false));//深度拷贝每个元素 
      } 
      return newArray; 
    }    
     
    //对对象深度拷贝 
    private function copyOverObject(objToCopy:Object, registerAlias:Boolean = false):Object 
    { 
      if(registerAlias) { 
        var className:String = flash.utils.getQualifiedClassName(objToCopy); 
        flash.net.registerClassAlias(className,(flash.utils.getDefinitionByName(className) as Class)); 
      } 
      return mx.utils.ObjectUtil.copy(objToCopy); 
    }    
    ]]> 
  </mx:Script> 
</mx:Application>

本文转自 xcf007 51CTO博客，原文链接： http://blog.51cto.com/xcf007/101733 ，如需转载请自行联系原作者