How to get a bytearray from file stream in Adobe AIR?
I read limited (small - 15 - 500 mb files). I need to be able to put all file bytes into one 开发者_开发知识库single bytearray. So I have a function:
[Bindable]
public var ba:ByteArray = new ByteArray;
//.... code ....//
protected function fileOpenSelected(event:Event):void
{
currentFile = event.target as File;
stream = new FileStream();
stream.openAsync(currentFile, FileMode.READ);
stream.readBytes(ba);
stream.close();
MyFunction(ba);
}
But it does not work=( - gives me Error: Error #2030: End of file was encountered.
How to get a full bytearray from stream to use it as normal bytearray?
I finally figured this out, after looking through the documentation for a good while. Whew!
In my case, I was having to read a wav file as a bytesArray for a class I was using, so I could use it on demand at the public scope.
var file:File = File.applicationDirectory.resolvePath("blip.wav");
var fileStream:FileStream = new FileStream();
fileStream.open(file, FileMode.READ);
var bytes:ByteArray = new ByteArray
fileStream.readBytes(bytes);
fileStream.close();
Hope this helps you as much as it helped me. I've tested it and confirmed that it works.
isn't the point of a FileStream
that you don't have a normal ByteArray
, but read asynchronously? It implements IDataInput
, allowing you to read from it as long as bytesAvailable
is bigger than 0.
on every progress event, you can just readBytes
into an output ByteArray
and once you get a complete event, you can use it.
greetz
back2dos
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