Question

I have a HTML box and load a local html file from the project.
In this HTML file I use jquery and I want to load an image from my user directory.
I see the image from my user directory but jquery doesn’t works.
I get this error:

TypeError: Error #1009: Cannot access a property or method of a null object reference.
    at crop/onLoaded()[/Flex Bundle/workspace/crop/src/crop.mxml:119]
    at flash.events::EventDispatcher/dispatchEventFunction()
    at flash.events::EventDispatcher/dispatchEvent()
    at flash.html::HTMLLoader/onCompleteTimer()
    at flash.utils::Timer/_timerDispatch()
    at flash.utils::Timer/tick()

But if I load an image from the app workspace, everything works fine (I see the image and Jquery works).

Is this a policy problem? The error says that is a “null object reference” problem, but this can’t be true…

Any ideas?

Damian

Answer 1

My Solution for copying a file from the application directory to a self defined directory:

Vars:

private var fileName:String = 'config.xml';
private var workingDirectory:String = 'MyNewAppDir';

1. Short and simple:

var f:File = File.applicationDirectory.resolvePath(this.fileName );
f.copyTo( File.documentsDirectory.resolvePath(this.workingDirectory+"/"+this.fileName));

OR 2. Long and complicated:

/**
 * read content
 */
var file:File = File.applicationDirectory.resolvePath( this.fileName );
var read:FileStream = new FileStream();
read.open(file, FileMode.READ);
var content:String = read.readMultiByte( read.bytesAvailable, "utf-8") ;
read.close();

/**
 * save content
 */
var write:FileStream = new FileStream();
write.open( File.documentsDirectory.resolvePath( this.workingDirectory + "/" + this.fileName ), FileMode.WRITE );
write.writeMultiByte( content, "utf-8" );
write.close();