Would this be helpful?
http://www.cimgf.com/2008/02/16/cocoa-tutorial-nsoperation-and-nsoperationqueue/
It shows how to use NSOperationQueue, but it uses downloading HTML
pages as an example.
On Oct 31, 2009, at 11:19 PM, DKJ wrote:
On 2009-10-31, at 19:34 , Roland King wrote:
. And why are you now talking about 4 NSURLConnections when you say
you have 2 files?
The 2-file example was a simplified case I posted when I was asking
whether the method would work. I actually have half-a-dozen or so
data files to download. (It can vary.)
I'm using the delegate to save the files to disk under different
names, so the delegate has to know which filename to use for which
connection. There's even a file that needs to be downloaded
containing the names of other files that need to be downloaded.
That's why I was doing things like this in the delegate (after the
initial received data was dealt with):
url = [NSURL URLWithString:[baseURL
stringByAppendingPathComponent:filename]];
dataString = [NSString stringWithContentsOfURL:url ...];
[dataString writeToFile:filename ...];
(I left out some parameters to make it easier to read.)
I'd be quite happy to do the whole thing synchronously: it's plenty
fast enough. But I wanted my little activity spinner to display,
even if it was only for a few seconds.
Any suggestions about how to do all of this with multiple
NSURLConnections would be quite welcome. Elegant code is a
worthwhile end in itself, even if there is no practical benefit in a
particular case._______________________________________________
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