nsurlconnection

Cocoa: Checks required for multiple asynchronous NSURLConnections using same delegate functions?

孤人 提交于 2019-11-28 03:52:22
This is with reference to the StackOverflow question Managing multiple asynchronous NSURLConnection connections I have multiple asynchronous HTTP requests being made at the same time. All these use the same NSURLConnection delegate functions. (The receivedData object is different for each connection as specified in the other question above. In the delegate, I parse the receivedDate object, and do additional operations on those parsed strings) Everything works fine for me so far, but I'm not sure if I need to do anything to ensure correct “multithreaded” behavior. Is it possible that more than

Loading NSData into a UIWebView

北城以北 提交于 2019-11-28 03:19:15
问题 In my web browser, I am trying to load a UIWebView with NSData obtained from a NSURLConnection . When I try to load it into the UIWebView , instead of the site, it comes up with the HTML plain text. Here is my code: in viewDidLoad: NSURLRequest *request = [NSURLRequest requestWithURL: [NSURL URLWithString:@"http://www.msn.com"]]; [NSURLConnection connectionWithRequest: request delegate:self]; later in the code: -(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {

Simpliest solution to check if File exists on a webserver. (Swift)

倖福魔咒の 提交于 2019-11-27 22:37:39
There are a lot of discussion about this and I understand the solution to use the delegate method and check the response "404": var request : NSURLRequest = NSURLRequest(URL: url) var connection : NSURLConnection = NSURLConnection(request: request, delegate: self, startImmediately: false)! connection.start() func connection(didReceiveResponse: NSURLConnection!, didReceiveResponse response: NSURLResponse!) { //... } But I would like to have a simple solution like: var exists:Bool=fileexists(sURL); Because I will have a lot of request in the same class with the delegate and I only want to check

how do I check an http request response status code from iOS?

梦想的初衷 提交于 2019-11-27 22:23:34
问题 I am sending an http request from iOS (iPad/iPhone) to my python google app engine server using the NSURLConnection and NSURLRequest classes. How do I read the response's status, i.e. the value set by app engine using response.set_status(200, message="Success") for instance? I'm not able to find where I can read these status codes once I receive the NSURLConnection's connectionDidFinishLoading delegate call on the client end. 回答1: The connection:didReceiveResponse: delegate method is called

Does NSURLConnection Block the Main/UI Thread

流过昼夜 提交于 2019-11-27 20:52:27
问题 I am downloading images in table view cells as they scroll onto the screen. For UX reasons, I start downloading the images in - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath . I do not wait until the table view is done scrolling. When the table view cell is set, I start downloading images that I do not have already. However, they do not seem to fully download until the table view stops moving. As soon as it stops moving, the images almost

asynchronous upload with NSURLSession will not work but synchronous NSURLConnection does

十年热恋 提交于 2019-11-27 20:18:24
edit: I need to upload a file asynchronously from an iPhone to a Python server-side process. I'd like to do the request asynchronously so that I can display a busy animation while it's working. The request needs to include the username, password and file as 'multipart/form-data'. I can get it working synchronously using NSURLConnection with the code looking like this:: -(void) uploadDatabase{ Database *databasePath = [[Database alloc] init]; NSString *targetPath = [databasePath getPathToDatabaseInDirectory]; NSData *dbData = [NSData dataWithContentsOfFile:targetPath]; NSString *url = @"http:/

Add NSURLConnection loading process on UIProgressView

假装没事ソ 提交于 2019-11-27 19:56:22
I created a UIProgressView . But i used NSTimer to UIProgressView's process . Now I need to integrate UIProgressView process, when URL is loading. UIProgressView's size will be depends upon the NSURLConnection's data. I used the following code to NSURLConnection . -(void)load { NSURL *myURL = [NSURL URLWithString:@"http://feeds.epicurious.com/newrecipes"]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:myURL cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:60]; [[NSURLConnection alloc] initWithRequest:request delegate:self]; } -(void)connection:

NSURLConnection deprecated in iOS9

烈酒焚心 提交于 2019-11-27 19:47:59
I want to download a file with a NSURLRequest and save it but in the line with the NSData * data = ... happens an error. NSURL *Urlstring = [NSURL URLWithString:@"http://yourdomain.com/yourfile.pdf"]; NSURLRequest *request = [NSURLRequest requestWithURL: Urlstring]; NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; NSURL *documentsURL = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject]; documentsURL = [documentsURL URLByAppendingPathComponent:@"localFile.pdf"]; [data writeToURL

Delayed UIImageView Rendering in UITableView

微笑、不失礼 提交于 2019-11-27 19:47:01
问题 Ok, I've got a UITableView with custom UITableViewCell s that each contain a UIImageView whose images are being downloaded asynchronously via an NSURLConnection . All pretty standard stuff... The issue is, when the table scrolls, the new images are downloaded in the background correctly but not RENDERED until the table stops moving. How do I get the table to render it's content even when it's moving? Thanks. -- UPDATE -- After a closer look, I'm finding that the NSURLConnection delegate

setKeepAliveTimeout and BackgroundTasks

牧云@^-^@ 提交于 2019-11-27 19:16:13
问题 I've a big headache with the topic. I'm working on an application that needs to poll a webserver regularly, in order to check for new data. Based on the returned information, I wish to push a local notification to the user. I know that this approach is slightly different from the one depicted by Apple, in which a remote server makes the work, pushing a remote notification, based on APNS. However, there are many reasons for which i cannot take this approach in consideration. One for all, is