How can save data into a XML file without user prompt dialog in Action Script 3?
I'm writing an simple application (with adobe flash) that runs on client PC and save user state data in XML file in same directory of app. When i use FileReference it shows a user dialog for saving file. Is there any class to save just XML data directly into XML file?
I think writing just XML (text plane) data couldn't make any security problems? :-?
Im amazed noone has posted this already. Load the xml file into memory using URLLoader, making sure the dataFormat is URLLoaderDataFormat.TEXT, then write it to a file using a filestream.
Working code is posted below
Hope it helps
private function loadConfigFromServer():void{
var request:URLRequest = new URLRequest(serverConfigXmlLocation);
configLoader = new URLLoader();
configLoader.addEventListener(Event.COMPLETE, configLoadCompleteHandler);
configLoader.addEventListener(IOErrorEvent.IO_ERROR, configLoadIOErrorEventHandler);
configLoader.addEventListener(SecurityErrorEvent.SECURITY_ERROR, configLoadSecurityErrorEventHandler);
configLoader.dataFormat = URLLoaderDataFormat.TEXT;
configLoader.load(request);
}
private function configLoadCompleteHandler(event:Event):void{
configLoader.removeEventListener(Event.COMPLETE, configLoadCompleteHandler);
configLoader.removeEventListener(IOErrorEvent.IO_ERROR, configLoadIOErrorEventHandler);
configLoader.removeEventListener(SecurityErrorEvent.SECURITY_ERROR, configLoadSecurityErrorEventHandler);
trace("config download complete");
var fs:FileStream = new FileStream();
try{
fs.open(new File(localConfigXmlLocation), FileMode.WRITE);
fs.writeMultiByte(configLoader.data, "unicode");
}catch(error:IOError){
trace("IOError saving config xml");
}catch(error:SecurityError){
trace("SecurityError saving config xml");
}finally{
fs.close();
parseLocalConfig();
}
}
The only real way to save data without a dialog coming up is through the SharedObject class. Provided you don't need to edit the XML externally, it should be fine, you can save it.
SharedObject will put up a dialog however if you go above 100KB (i think) of data, so if your XML is getting larger than this, compress it using a ByteArray.
Compressing:
var ba:ByteArray = new ByteArray;
ba.writeUTFBytes( myXML );
ba.compress();
Uncompressing:
try
{
ba.uncompress();
}
catch ( e:Error )
{
trace( "The ByteArray wasn't compressed!" );
}
// set our xml data
myXML = XML( ba );
SharedObject to specify directory of my XML file?
Possible duplicate: Saving XML file in AS3 is possible
With a shared object like divillysausages described, you can save an array, or XML data, or other variables to a shared object to retrieve it later. You're only saving this data to the users computer, so it can't be used anywhere but locally on their machine again. Short answer, without a server-side language to communicate with, you cannot save data to an actual XML file if it's an-browser app or a projector.
FileReference! :-<