#nsurlconnection

[script-ease]

ASIHttpRequest

ios - Limit NSURLConnection data rate? (Bandwidth throttling) - Stack Overflow

[objectivesea]

Interesting NSURLConnection quirk

You would expect this code always return a response, sometimes return data, and when there was no data, you could look at the response and the error to determine what happened. Not so! The response object is `nil` if it hits a NSURLErrorUserCancelledAuthentication (-1012). NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error]; if (!data) NSLog(@"Network error: HTTP %i - %@", [response statusCode], error); Changed to the code below, for now. Not sure how to deal with it long term though, may have to move away from my `sendSynchronousRequest` from within an `NSBlockOperation` technique of network queuing. NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error]; if (!data || !response) NSLog(@"Network error: HTTP %i - %@", [response statusCode], error);

[titusmagnus]

Using NSRunLoop and NSURLConnection

This article illustrates the use of NSURLConnection with NSRunLoop. [More...](http://coc24hours.blogspot.com/2012/01/using-nsrunloop-and-nsurlconnection.html)

[titusmagnus]

[titusmagnus]

How to make monitor progress for an NSURLConnection when downloading a file

In your **NSURLConnection** delegate, implement something like the following to find out the total content length. The server has to support this, but it will most likely work fine with static content: - (void)connection: (NSURLConnection*) connection didReceiveResponse: (NSHTTPURLResponse*) response { if ([response statusCode] == 200) { self.downloadSize = [response expectedContentLength]; } } You can update progress like so: - (void) connection: (NSURLConnection*) connection didReceiveData: (NSData*) data { [self.data appendData: data]; self.progress = ((float) [self.data length] / (float) self.downloadSize); // Broadcast a notification with the progress change, call a delegate, etc. }

[vinnycoyne]

A dirty hack, but it seems to work OK. Use at your own risk... ;)

[i0sdev]

[The behavior of NSURLCache changed between iOS 4.x and iOS 5.x](http://petersteinberger.com/blog/2012/nsurlcache-uses-a-disk-cache-as-of-ios5/)

[adamernst-blog]

NSURLConnectionDownloadDelegate doesn't work

Surprise undocumented fact: NSURLConnectionDownloadDelegate is only for Newsstand apps. If you attempt to use it in a non-Newsstand app, it will appear to succeed but pass you a nonexistent file path.

More generally, Newsstand is pretty neat but it's silly for Apple to restrict its functionality to news apps. For example, take my subway app: it could definitely benefit from downloading service change data daily if you're plugged in at 4AM (which is what Newsstand allows you to do). But since I'm not a "news" app, I can't do that.