Air flex 读/写文件

 

<?xml version="1.0" encoding="utf-8"?><s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"   xmlns:s="library://ns.adobe.com/flex/spark"   xmlns:mx="library://ns.adobe.com/flex/mx"   xmlns:skins="graphite.skins.*"   width="800" height="600"><fx:Script><![CDATA[import mx.messaging.AbstractConsumer; private function init():void{ } private function onOpen():void { var file:File = new File(); file.browseForOpen("Select a text file",[new FileFilter("text file","*.txt")]); file.addEventListener(Event.SELECT,onFileSelect); } private function onFileSelect(e:Event):void{ var fs:FileStream = new FileStream(); txtPath.text = File(e.target).nativePath; fs.open(File(e.target),FileMode.READ); //txtContent.text = fs.readMultiByte(fs.bytesAvailable, "gb2312"); fs.close();txtContent.text = fs.readMultiByte(fs.bytesAvailable, "utf-8"); fs.close(); } private function Save():void{ var fs:FileStream = new FileStream(); fs.open(new File(txtPath.text),FileMode.WRITE); fs.writeUTFBytes(txtContent.text); fs.close(); } ]]></fx:Script><fx:Declarations><!-- 将非可视元素（例如服务、值对象）放在此处 --></fx:Declarations><s:TextInput id="txtPath" x="10" y="10" width="321"/> <s:Button id="btnOpen" x="339" y="10" label="Open" click="onOpen()"/> <s:TextArea id="txtContent" x="10" y="40" width="394" height="276"/> <s:Button x="339" y="324" label="Save" click="Save()"/> </s:WindowedApplication>