Air 完成后改变状态
使用Flash Builder 4(带有4.1 flex)。 尝试在我的函数完成运行后创建一个状态更改,该更改将更改屏幕,使其具有一个“完成”按钮,该按钮将关闭应用程序。如何让air应用程序执行此操作?Air 完成后改变状态,air,flex4,state,flashbuilder4,Air,Flex4,State,Flashbuilder4,使用Flash Builder 4(带有4.1 flex)。 尝试在我的函数完成运行后创建一个状态更改,该更改将更改屏幕,使其具有一个“完成”按钮,该按钮将关闭应用程序。如何让air应用程序执行此操作? 我发现:受保护的函数setState(newState:String):对于AS3无效,但在Flex4上不起作用。完成文件数组后,它应将状态更改为“完成” private function initiate_download(event:MouseEvent):void
我发现:受保护的函数setState(newState:String):对于AS3无效,但在Flex4上不起作用。完成文件数组后,它应将状态更改为“完成”
private function initiate_download(event:MouseEvent):void
{
var filearray:Array = new Array();
filearray[0]="00.jpg";
filearray[1]="01.jpg";
filearray[2]="02.jpg";
for (var i:uint; i < filearray.length; i++) {
var remoteURL = "http://domain/" + filearray[i];
var localURL = "C:/dir/" + filearray[i];
downloadFile(remoteURL, localURL);
}
function downloadFile(url, filename) {
// Create the stream for the data request
var urlStream = new URLStream();
// Used to initiate request for remote file
var request = new URLRequest(url);
// Create file stream
var fileStream = new FileStream();
// Create a reference to a location on disk
var file = File.desktopDirectory.resolvePath(filename);
// Called as download progresses
var writeFile = function()
{
// Write to file
if (urlStream.bytesAvailable > 51200)
{
var dataBuffer = new ByteArray();
urlStream.readBytes(dataBuffer, 0, urlStream.bytesAvailable);
fileStream.writeBytes(dataBuffer, 0, dataBuffer.length);
}
return true;
}
// Called when download completes
var finishWriteFile = function()
{
// Write to file
if(urlStream.bytesAvailable > 0)
{
var dataBuffer = new ByteArray();
urlStream.readBytes(dataBuffer, 0, urlStream.bytesAvailable);
fileStream.writeBytes(dataBuffer, 0, dataBuffer.length);
}
// Close streams
fileStream.close();
urlStream.close();
return true;
}
// Initiate download
fileStream.openAsync(file, FileMode.WRITE);
urlStream.load(request);
// Add event listeners
urlStream.addEventListener(Event.COMPLETE, finishWriteFile);
urlStream.addEventListener(ProgressEvent.PROGRESS, writeFile);
}
]]>
</fx:Script>
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<s:states>
<s:State name="Start"/>
<s:State name="Finished"/>
</s:states>
<mx:Image x="0" y="0" source="background.jpg"/>
<s:Button x="85" y="85" includeIn="Start" label="Update" id="download" click="initiate_download(event)" color="#FFFFFF" fontSize="30"/>
<s:Button x="131" y="85" includeIn="Finished" label="Finished" id="closer" click="close_window(event)" color="#FFFFFF" fontSize="30"/>
private function initiate\u下载(事件:MouseEvent):无效
{
var filearray:Array=new Array();
filearray[0]=“00.jpg”;
filearray[1]=“01.jpg”;
filearray[2]=“02.jpg”;
for(变量i:uint;i51200)
{
var dataBuffer=new ByteArray();
readBytes(dataBuffer,0,urlStream.bytesavable);
fileStream.writeBytes(dataBuffer,0,dataBuffer.length);
}
返回true;
}
//下载完成时调用
var finishWriteFile=函数()
{
//写入文件
如果(urlStream.bytesavable>0)
{
var dataBuffer=new ByteArray();
readBytes(dataBuffer,0,urlStream.bytesavable);
fileStream.writeBytes(dataBuffer,0,dataBuffer.length);
}
//合流
fileStream.close();
urlStream.close();
返回true;
}
//启动下载
openAsync(文件,FileMode.WRITE);
加载(请求);
//添加事件侦听器
urlStream.addEventListener(Event.COMPLETE,finishWriteFile);
urlStream.addEventListener(ProgressEvent.PROGRESS,writeFile);
}
]]>
关闭fileStream和URLSEAM后,您可以更改状态
this.currentState = "Finished"
现在应该可以看到“关闭”按钮。谢谢,这完全正确!如果在流关闭后放置它,则在处理阵列的第一个部分后,它会发生更改。我必须使用大型电影文件对其进行测试。我将努力让它等到阵列结束后再进行更改。