所以目前我能够根据用户需要保存1-9个AS3变量,它们作为文本字符串保存到XML文件中,但是当用户再次保存时,旧的xml信息仍保留在文件和新信息中被添加。 但是,我希望新信息可以覆盖旧信息,或者在保存新设置之前设置清除/删除xml文件中信息的功能。
这是我当前的保存功能:
var soundVAR;
var conditionVAR;
var soundtoXML:XML;
var conditiontoXML:XML;
var test = 1;
var playingCounter = 0;
var xml:XML = <saved>
</saved>;
//1.Button event listener
btn_Save.addEventListener(MouseEvent.CLICK, saveXML);
//2.The saveurl function which opens a URL.
function saveXML(event:MouseEvent):void {
var conditionsArray = new Array(play1Condition, play2Condition, play3Condition, play4Condition, play5Condition, play6Condition, play7Condition, play8Condition, play9Condition)
for (var i=0; i < conditionsArray.length; i++){
trace(conditionsArray[i])
if(conditionsArray[i] == true)
{
soundVAR = soundsName[i];
conditionVAR = conditionsArray[i];
playingCounter++;
} else {
trace('no sounds are playing');
}
while (xml.item.length() < playingCounter ){
var soundString:String = '<sound>' + soundVAR + '</sound>';
var conditionString:String = '<condition>' + conditionVAR + '</condition>';
soundtoXML = new XML(soundString);
conditiontoXML = new XML(conditionString);
var item:XML = <item />
item.@id = xml.item.length().toString();
xml.appendChild(item);
var sound:XML = xml.item[xml.item.length() - 1];
var condition:XML = xml.item[xml.item.length() - 1];
sound.appendChild(soundtoXML);
condition.appendChild(conditiontoXML);
}
}
writeXML();
trace(xml);
}
function writeXML(){
var savedSounds:SharedObject = SharedObject.getLocal( 'savedSounds');
savedSounds.data.soundsxml = xml; // your variables
savedSounds.flush(); // stores data into disk
}
先谢谢。
答案 0 :(得分:0)
简答:您想在xml.item.setChildern('');
循环之前调用while
。更长的回答:我不明白while循环的最后4行。你能解释写作背后的意图吗?
如果我正确理解你的代码,那么while循环可能如下:
var i:int = xml.item.length();
while (i < playingCounter)
{
xml.* += <item id={ i }>
<sound>{ soundVAR }</sound>
<condition>{ conditionVAR }</condition>
</item>;
i++;
}