Flex中本地图片上传及上传文件前的预览
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" fontSize="12" creationComplete="init()">
<mx:Script>
<!--[CDATA[
import mx.utils.*;
import flash.net.*;
private var fileReference:FileReference=new FileReference();
private var byteArray:ByteArray;
private var bitmapData:BitmapData;
private var loader:Loader=new Loader();
private function init():void
{
fileReference.addEventListener(Event.COMPLETE,fileReferenceCompleteHandler);
}
private function fileReferenceCompleteHandler(e:Event):void
{
byteArray = fileReference.data;
loader.contentLoaderInfo.addEventListener(Event.COMPLETE,loaderCompleteHandler);
loader.loadBytes(byteArray);
}
private function loaderCompleteHandler(e:Event):void
{
var bitmap:Bitmap = Bitmap(loader.content);
bitmapData = bitmap.bitmapData;
img.source = bitmap;
}
private function fileReferenceSelectHandler(e:Event):void
{
fileReference.load();
}
private function btnClick():void
{
fileReference.browse();
fileReference.addEventListener(Event.SELECT,fileReferenceSelectHandler);
}
]]-->
</mx:Script>
<mx:Panel width="456" height="345" horizontalCenter="0" verticalGap="0" horizontalAlign="center" verticalAlign="middle">
<mx:Image id="img" width="263" height="234"/>
<mx:Button label="选择..." click="btnClick()"/>
相关文档：
http://www.zhuoqun.net/html/y2008/1042.html加载图片
http://www.millionclouds.com/浏览图片
http://www.scion.com/#home卖车
http://labs.newmediateam.com/pizzastore/customerview/卖披萨
http://www.sumo.fi/flash/sumopaint/线图片编辑器
http://www.prettyloaded.com/各种预加载效果
http://www.adobecards. ......
开始日期 与 结束日期的范围选择
两者都不能大于今天，开始日期不能大于结束日期
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" backgroundGradientColors="[#ffffff, #ffffff]">
<mx:Script>
......
flex代码：
<?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">
<fx:Script>
<!--[CDATA[
i ......
Flex 与 JavaScript 交互，主要依靠Flex的ExternalInterface，其提供了addCallBack和call方法.
下面的例子将演示Flex调用javascript，和javascript调用Flex。
js 代码
-------------------------------------------------------------------------------------------------------------
function hello(param) {
......
