flex共享对象存取本地数据实例(初级)
1、 shareObj.mxml
<?xml version="1.0" encoding="utf-8"?><s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/halo" minWidth="1024" minHeight="768" creationComplete="init();"><fx:Script><![CDATA[private var sharedObj:MySharedObj;private function init():void{sharedObj = new MySharedObj();}]]></fx:Script><mx:Button id="readBut" x="100" y="100" label="read" click="trace(sharedObj.myReadValue());"/><mx:Button id="saveBut" x="200" y="100" label="save" click="sharedObj.mySaveValue('hello', 10000);"/><mx:Button id="clearBtn" x="300" y="100" label="clear" click="sharedObj.myClearValue();"/></s:Application>package{import flash.events.NetStatusEvent;import flash.net.SharedObject;import flash.net.SharedObjectFlushStatus;public class MySharedObj{private var sharedObj:SharedObject;public function MySharedObj(){}/*read if not then this value will return null*/public function myReadValue():String{sharedObj = SharedObject.getLocal("shareObj");return sharedObj.data.savedValue;}/*save*/public function mySaveValue(sharedValue:String, flushLength:Number):void{sharedObj.data.savedValue = sharedValue;var flushStatus:String = null;try{flushStatus = sharedObj.flush(flushLength);}catch(error:Error){trace("error message: " + error.message);}if(flushStatus != null){switch(flushStatus){case SharedObjectFlushStatus.PENDING:sharedObj.addEventListener(NetStatusEvent.NET_STATUS, nowFlushStatus);break;case SharedObjectFlushStatus.FLUSHED:trace("access saved");break;}}}/*clear*/public function myClearValue():void{delete sharedObj.data.savedValue;}/*SharedObjectFlushStatus.PENDING*/private function nowFlushStatus(event:NetStatusEvent):void{switch(event.info.code){case "SharedObject.Flush.Success": //flush auccesstrace("User granted permission, value saved");break;case "SharedObject.Flush.Failed": //flush failedtrace("User denied permission, value not saved");break;}sharedObj.removeEventListener(NetStatusEvent.NET_STATUS, nowFlushStatus);}}}