Yes. Stop using the synchronous API. If you use the asynchronous delegate-based API then you have a lot more control over the connection. With this API, except in cases where an error is encountered before the HTTP header is received, you will always receive -connection:didReceiveResponse:, which gives you access to the HTTP header fields (encapsulated … Read more
You could simply ignore the invalid certificate if you are not sending any sensitive information. This article describes how you could do that. Here is an example implementation by Alexandre Colucci for one of the methods described in that article. Essentially you want to define a dummy interface just above the @implementation: @interface NSURLRequest (DummyInterface) … Read more
According to a post on the Apple developer forum, the minimum timeout interval for POST is 240 seconds. Any timeout interval shorter than that is ignored. If you require a shorter timeout interval, use an async request along with a timer and call cancel on the NSURLConnection as needed. link to thread: here
I recommend you to see WWDC Sessions about network application in iPhone OS. WWDC 2010 Session 207 – Network Apps for iPhone OS, Part 1 WWDC 2010 Session 208 – Network Apps for iPhone OS, Part 2 The lecturer said “Threads Are Evil™” for network programming and recommended to use asynchronous network programming with RunLoop. … Read more
It doesn’t appear that there is a good way to do this. The solution seems to be to not use the new [NSURLConnection sendAsynchronousRequest] in situations in which you need to cancel the request.
This kind of question was asked a zillion time. Delegates are not getting called because as of iOS 4 operations are started on a secondary thread. The thread probably exits before the delegates are called that’s all. Keep the connection on the main thread and handle the data in a background thread using GCD. I’v … Read more
As you may know already that general error can capture by didFailWithError method: – (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { NSLog(@”Connection failed! Error – %@ %@”, [error localizedDescription], [[error userInfo] objectForKey:NSErrorFailingURLStringKey]); } but for 404 “Not Found” or 500 “Internal Server Error” should able to capture inside didReceiveResponse method: – (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { if … Read more
Reachability is a network helper utility class, its used to get various informations about the connection status What is the main purposes of Reachability? Reachability is used to query the network status, and to register your listeners to get informed when connectivity changes. Is this the main purpose of Reachability, to show the user a … Read more
Your code will work to play a movie file. The simplest way to download is synchronously: NSData *data = [NSData dataWithContentsOfURL:movieUrl]; [data writeToURL:movieUrl atomically:YES]; But it is better (for app responsiveness, etc) to download asynchronously: NSURLRequest *theRequest = [NSURLRequest requestWithURL:movieUrl cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:60]; receivedData = [[NSMutableData alloc] initWithLength:0]; NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self startImmediately:YES]; … Read more
Make a request using the HEAD method. For example: NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url]; [request setHTTPMethod:@”HEAD”]; This request will be identical to a GET but it won’t return the body. Then call long long size = [response expectedContentLength]; Complete example with NSURLConnection (works for NSURLSession too of course): NSURL *URL = [NSURL URLWithString:@”http://www.google.com”]; NSMutableURLRequest *request … Read more