使用共享对象在Action Script 3.0中加载显示对象的数组

Question

我正在尝试加载一个包含一些显示对象的数组，该程序使我可以用圆圈填充数组并将它们保存到共享对象，然后，我可以跟踪内容使用负载按钮的数组。问题在于，在重新启动程序之后，我无法加载数组。它可以追溯到我的消息："加载对象：,，"

这是代码：

var SO:SharedObject=SharedObject.getLocal("myFile", "/");
var arr:Array=new Array();
var counter:Number=-1;
addBtn.addEventListener(MouseEvent.CLICK, addObjects);
saveBtn.addEventListener(MouseEvent.CLICK, saveObjects);
loadBtn.addEventListener(MouseEvent.CLICK, loadObjects);
function addObjects(event:Event) {
    counter++;
    var circle:circleClip=new circleClip();
    arr.push(circle);
    trace("current object: "+arr[counter]);
}
function saveObjects(event:Event) {
    SO.data.arrSaved=arr;
    SO.flush();
    trace("objects saved: "+SO.data.arrSaved);
}
function loadObjects(event:Event) {
    var arrLoaded:Array=new Array();
    arrLoaded=SO.data.arrSaved;
    trace("objects loaded: "+arrLoaded);
}

Answer 1

您要了解MVC模式方法：https：//en.wikipedia.org/wiki/model–view–％93controller

>

您需要将数据与可视化这些数据的事物的代码分开，仅存储数据。类似：

// Lets say this Array contains a list of your circle objects.
var Curcus:Array;
// Storage.
var SO:SharedObject = SharedObject.getLocal("myFile", "/");
function saveCircus():void
{
    var aList:Array = new Array;
    aList.length = Circus.length;
    for (var i:int = 0; i < Curcus.length; i++)
    {
        // Get an object.
        var aCircle:Sprite = Curcus[i];
        // Record its properties you want to store.
        var anEntry:Object =
        {
            "x":aCircle.x,
            "y":aCircle.y,
            "scaleX":aCircle.scaleX,
            "scaleY":aCircle.scaleY
        };
        // Store the entry.
        aList[i] = anEntry;
    }
    // Store and save data.
    SO.data.arrSaved = aList;
    SO.flush();
}
function loadCircus():void
{
    // Retrieve saved data.
    var aList:Array = SO.data.arrSaved;
    // Make it empty data if there are none.
    if (!aList) aList = new Array;
    Circus = new Array;
    Curcus.length = aList.length;
    for (var i:int = 0; i < aList.length; i++)
    {
        // Get one entry.
        var anEntry:Object = aList[i];
        // Create a new item. BTW, naming classes with the
        // lowercase first letter is the 8th cardinal sin.
        var aCircle = new CircleClip;
        // Restore saved properties.
        aCircle.x = anEntry['x'];
        aCircle.y = anEntry['y'];
        aCircle.scaleX = anEntry['scaleX'];
        aCircle.scaleY = anEntry['scaleY'];
        // Add to display list.
        addChild(aCircle);
        // Keep it for the future reference/saving.
        Curcus[i] = aCircle;
    }
}