CODEWITHSUNDEEP
actionscript-3flashair
thenickwood
thenickwood

Reputation: 11

Flash Air 3.2 FileStream resulting 'undefined'

I'm working with Flash Air 3.2 (Old, I know) and I'm trying to start off by reading a text file using FileStream. The code I have finds the file, and I've put text in the file, but whenever I try to run the code it returns 'undefined'. Here's my code:

import flash.filesystem.*
import flash.net.*
import flash.utils.ByteArray;
import flash.events.*

var myFile:File = File.applicationStorageDirectory.resolvePath("test.txt"); 
var myFileStream:FileStream = new FileStream(); 
myFileStream.addEventListener(Event.COMPLETE, completeHandler); 
myFileStream.openAsync(myFile, FileMode.READ); 
var bytes:ByteArray = new ByteArray(); 

function completeHandler(event:Event):void  
{ 
    myFileStream.readBytes(bytes, 0, myFileStream.bytesAvailable); 
    trace(myFileStream.readBytes(bytes, 0, myFileStream.bytesAvailable));
}

Any help is greatly appreciated!

Upvotes: 0

Views: 86

Answers (1)

BadFeelingAboutThis
BadFeelingAboutThis

Reputation: 14406

You get undefined because the readBytes method of a FileStream has a return type of void. The bytes read from that method get put into the byte array you pass to it rather than being returned directly from the method.

myFileStream.readBytes(bytes, 0, myFileStream.bytesAvailable); //this returns void/undefined by design regardless of the contents of bytes
trace(bytes); //this will trace the byte array object that was populated with the above line

If you're just looking to read a text file, you should be able to do the shortcut method:

myFileStream.readUTF();

Upvotes: 1

Related Questions