flash as文件上传进度条

先来看看效果图吧:

下面就是在as iframe里面加的代码.

import .net.FileReference;
import mx.controls.Alert;

var my_pb:mx.controls.ProgressBar;
var maxSize = 1000*1000*100; //文件大小限制：100M
//设置进度栏模式
my_pb.mode = "manual";
my_pb.label = "上传进度:%1%";
my_pb._visible=false
//进度栏增加前的最小数值
my_pb.minimum = 0;
// 进度栏停止前的最大值
my_pb.maximum = 100;
var increment_num:Number = my_pb.minimum;

var allTypes:Array = new Array();
var imageTypes:Object = new Object();
imageTypes.description = "Images (*.jpg, *.jpeg, *.gif, *.png)";
imageTypes.extension = "*.jpg; *.jpeg; *.gif; *.png";
allTypes.push(imageTypes);

//var textTypes:Object = new Object();
//textTypes.description = "Text Files (*.txt, *.rtf)";
//textTypes.extension = "*.txt;*.rtf";
//allTypes.push(textTypes);

var flvType:Object =new Object();
flvType.description ="flv Files (*.flv)";
flvType.extension ="*.flv";
allTypes.push(flvType);

var rmType:Object =new Object();
rmType.description ="rm Files (*.rm)";
rmType.extension ="*.rm";
allTypes.push(rmType);

// 定义警告确认后的动作。
var myClickHandler:Function = function (evt_obj:Object) {
if (evt_obj.detail == Alert.OK) {
trace("start stock app");
}
};

var listener:Object = new Object();

listener.onSelect = function(file:FileReference):Void {
trace("onSelect: " + file.name);
filesurl.text=file.name;
msg( "对不起您选择的文件太大！");
//if(!file.upload("")) {
// trace("Upload dialog failed to open.");
//}
if (file.size {
//strState.text = "您选择得文件：" + file.name + "n";
btnUpload.enabled = true;
}else
{
msg( "对不起您选择的文件太大！");
btnUpload.enabled = false;
}
}

listener.onCancel = function(file:FileReference):Void {
trace("onCancel");
}

listener.onOpen = function(file:FileReference):Void {
trace("onOpen: " + file.name);
}

listener.onProgress = function(file:FileReference, bytesLoaded:Number, bytesTotal:Number):Void {
trace("onProgress with bytesLoaded: " + bytesLoaded + " bytesTotal: " + bytesTotal);
my_pb.setProgress ((bytesLoaded / bytesTotal) * 100, my_pb.maximum);
}

listener.onComplete = function(file:FileReference):Void {
trace("111111111111onComplete: " + file.name);
//msg("上传完毕！");
getURL ("Javascript: formsub ()");
}

listener.onHTTPError = function(file:FileReference):Void {
trace("onHTTPError: " + file.name);
msg("onHTTPError: " + file.name);
}

listener.onIOError = function(file:FileReference):Void {
trace("onIOError: " + file.name);
msg("onIOError: " + file.name);
}

listener.onSecurityError = function(file:FileReference, errorString:String):Void {
trace("onSecurityError: " + file.name + " errorString: " + errorString);
msg("onSecurityError: " + file.name + " errorString: " + errorString);
}

var fileRef:FileReference = new FileReference();
fileRef.addListener(listener);
this.btnBrowse.onRelease = function () {
fileRef.browse(allTypes);
};
//this.btnUpload.onRelease = function () {
// if(!fileRef.upload("/upload.php")) {
//trace("Upload dialog failed to open.");
//}
// 显示警告对话框。

//}
//fileUploadURL="/upload.php";
function scrubba() {
if(fileUploadURL){
my_pb._visible=!false;
btnBrowse.enabled = false;
if(!fileRef.upload(fileUploadURL)) {
trace("Upload dialog failed to open.");
}
fileUploadURL='';
}
}
_root.onEnterFrame = scrubba;

function msg(msgtxt:String) {
Alert.show(msgtxt, "消息", Alert.OK , this, myClickHandler, "stockIcon", Alert.OK);
}
说明:hlp.php文件是php文件上传代码,详细请到本站去找.