nsurlconnectiondelegate

问题 I need to check the response status code while loading any of the url in the webview fo. For now we can consider any of the web application I am loading inside the web view.So I need to track down every request withing that webview and check out the response code accordingly. For finding the response code, I need to use NSUrlConnection inside the uiwebview's delegate method "shouldStartLoadWithrequest". Some thing like this - - (BOOL) webView:(UIWebView *)webView shouldStartLoadWithRequest:

问题 Most likely a rather trivial question but will the completion block always be called using [NSURLConnection sendAsynchronousRequest: ...] ? OR do I have to implement a timeout timer? Consider the following where I add a MBProgressView before the call and remove it ONLY in the completion block: [self showHUDWithTitle:@"Configuring"]; [NSURLConnection sendAsynchronousRequest:request queue:[[NSOperationQueue alloc] init] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error)

问题 I am trying to consume secure restful service which gives error Error = Error Domain=NSURLErrorDomain Code=-1202 "The certificate for this server is invalid. You might be connecting to a server that is pretending to be “xxx.xxx.xxx.xxx” which could put your confidential information at risk." working on xCode 4.2, where is the mistake or any step missing. using following code RegisterUser.f @interface RegisterUser : UIViewController<UITextFieldDelegate, UIScrollViewDelegate,

问题 testing request and getting the response example in official apple developer site. https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/URLLoadingSystem/Tasks/UsingNSURLConnection.html using [connection release] method in connectionDidFinishLoading, causes error :Should've been invalidated - EXC_BAD_ACCESS if I comment line [connection release] method; everything seems working but Im afraid there is memory leak occurs because of non existent release of connection. what may

问题 How can I implement -[NSURLConnection sendAsynchronousRequest:queue:completionHandler:] for iOS < 5? #if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_5_0 #import <objc/runtime.h> #import "NSURLConnection+iOS4.h" // Dynamically add -[NSURLConnection sendAsynchronousRequest:queue:completionHandler:]. void *sendAsynchronousRequest4(id self, SEL _cmd, NSURLRequest *request, NSOperationQueue *queue, void (^handler)(NSURLResponse*, NSData*, NSError*)); void *sendAsynchronousRequest4(id self, SEL

问题 I'm using NSURLConnection to perform a series of HTTP requests to the same host asynchronously, i. e. with [initWithRequest:delegate:startImmediately:] and a delegate. When connectionDidFinishLoading notification comes to the delegate, I release my connection object, then initialize and initiate another one, to the same host. Question - will the underlying socket be reused? The Connection:keep-alive server header is there, but I have no way of making sure that it's being respected. I mean,

问题 When I send a synchronous request with NSURLConncetion [NSURLConnection initWithRequest:myRequest delegate:self]; I can receive my downloaded data in pieces with the following method - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [self.videoData appendData:data]; NSLog(@"APPENDING DATA %@",data); } The advantage of this is that I can write my data directly to a file, and limit ram usage when downloading large files. When I send an asynchronous request, how

问题 I'm communicating with a server that validates a password and returns a 401 error on invalid password, together with a json body specifying the number of failed attempts. That number is incremented by the server on each failed validation. The problem I'm facing is that when NSURLConnection gets a 401 response, it kicks an authentication mechanism that involves these delegate methods: connection:canAuthenticateAgainstProtectionSpace: connection:didReceiveAuthenticationChallenge: If I return NO

问题 I'm using a POST request to upload some data to a server, and I'm trying to update the UIProgressView's progress based on the totalBytesWritten property of the didSendBodyData method of NSURLConnection . Using the below code, I don't get a proper updating of the progress view, it's always 0.000 until it finishes. I'm not sure what to multiply or divide by to get a better progress of the upload. I'd appreciate any help offered! Code: - (void)connection:(NSURLConnection *)connection

问题 I'm trying to modify Apple's sample code for using the Twitter API so that I can use the streaming API to filter tweets. I am attempting to implement the method suggested in response to this question: Does TWRequest work for the twitter streaming api? I have created the signed NSURLRequest and NSURLConnection objects as suggested, and set the delegate for the connection object. A valid twitter account is selected and used to sign the url. The problem is that the delegates connection