flex(air)本地文件选择器弹出框操作实例

编程技术  /  houtizong 发布于 3年前   45

<?xml version="1.0" encoding="utf-8"?><mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" fontSize="16" layout="absolute"><mx:Script>         <![CDATA[            /**            * 只适用于air程序            * 关键是用户所选择的目录或文件都可以得到其绝对路径的            **/            import flash.filesystem.File;              import flash.events.FileListEvent;            import flash.events.Event;                /** * 选择一个目录 */        private function tanDir(titleStr:String):void{            var file:File = new File();file.browseForDirectory(titleStr); file.addEventListener(Event.SELECT, dirSelectpd);        }                        private function dirSelectpd(e:Event):void{ inputID.text = e.target.nativePath;    //绝对路径} /** * 选择一个文件 */private function tanFile(titleStr:String):void{    var file:File = new File();    file.browseForOpen(titleStr);    file.addEventListener(Event.SELECT, fileSelectpd);}  private function fileSelectpd(e:Event):void { inputID.text = e.target.nativePath;    //绝对路径}/** * 选择多个文件 */private function tanDuoFile(titleStr:String):void{    var file:File = new File();    file.browseForOpenMultiple(titleStr);    file.addEventListener(FileListEvent.SELECT_MULTIPLE, duoFileSelectpd);}private function duoFileSelectpd(e:FileListEvent):void{var fileArr:Array = e.files;for(var i:uint = 0; i < fileArr.length; i++){        trace(fileArr[i].nativePath);    //绝对路径    }}/** * 保存一个文件 */private function tanSave(titleStr:String):void{    var file:File = new File();    file.browseForSave(titleStr);    file.addEventListener(Event.SELECT, selSave);}private function selSave(e:Event):void{var newFile:File = e.target as File;    var str:String = "hello世界";    //要写入文件的内容    if(!newFile.exists){        var stream:FileStream = new FileStream();        stream.open(newFile, FileMode.WRITE);        stream.writeUTFBytes(str);        stream.close();    }}        ]]>    </mx:Script>        <mx:Button id="butDirID" label="选择一个目录" click="tanDir('哈哈，选择一个目录');"/>    <mx:Button id="butFileID" y="30" label="选择一个文件" click="tanFile('哈哈，选择一个文件');"/>    <mx:Button id="butDuoFileID" y="60" label="选择多个文件" click="tanDuoFile('哈哈，选择多个文件');"/>    <mx:Button id="butSaveID" y="90" label="保存一个文件" click="tanSave('哈哈，保存一个文件');"/>        <mx:TextInput id="inputID" y="180" width="100%"/>    </mx:WindowedApplication>