Download and save picture in FB4 / AIR app

I have download and display an Image successfully in a Flash Builder 4 / AIR application.

The application also saves the ByteArray downloaded to a local drive.

protected function creationCompleteHandler( event:FlexEvent ):void
{
     var loader:Loader = new Loader();
     var file:File = new File();
     loader.contentLoaderInfo.addEventListener(Event.COMPLETE, imageLoaded);
     var request:URLRequest = new URLRequest( "http://. . . /01-Cafe.jpg" );
     loader.load( request );
}

private function imageLoaded( event:Event ):void
{
     // displaying the image
     this.testImg.source = event.target.content;

     // saving the image file
     var fs:FileStream = new FileStream();
     var path:File = new File( File.desktopDirectory.nativePath + File.separator + "01-Cafe.jpg" );
     fs.openAsync( path, FileMode.WRITE );
     fs.writeBytes( event.target.bytes, 0, event.target.bytes.bytesAvailable );
     fs.close();
}

try to open the file saved in Photoshop CS4 gives the following error:

"Could not complete your request because we find a unknown or invalid JPEG marker."

IrfanView open the file in a Flash drive.

The application that saved the file can load and display.

What does the download data to the JPEG file?

How to save a JPEG file valid since the ByteArray Loader?

Thank you

David

> This is incorrect.

Sorry, my mistake. I meant .bitmapData Bitmap (event.target.content). It will take only a convert JPG JPGEncoder.

Interesting to know that LoaderInfo.bytes has extra bytes at the beginning.

Is that what you could not only use URLLoader to get bytes from the JPG, save that bytearray another before passing on Loader.loadBytes to display the image?

See you soon,.

Rémy

Tags: Flash Builder

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Hello

I am trying to record audio and video files that are larger than 5 MB in size.

I open a Http connection and asking to 128 KB each time until the completion of the data transmission.

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AM making ala invokeAndLater() and therefore not blocking is not the eventThread.

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the following code snippet shows the flow of the code.

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// Dictionary obj is a vector that contains list of file names.// IAudioVideoPopUp is an interface implemented by the caller. 

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A little patience please. Don't forget that you are awake does not mean that other people are. I'd leave a Thread open for at least 24 hours before bumping.

I'm sorry to tell you that invokeLater runs the executable on the wire of the event, not a separate Thread. If you have actually started the treatment in the very thing you're trying to get away from.

You must run the execution in DownloadCombiner treatment in a separate Thread. This is why, in the article, which I suppose you DownloadCombiner, it extends Thread.

Just for the record, DownloadCombiner is here:

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