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POUpload and download data from server with Cocoa Touch?
 

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  1. POUpload and download data from server with Cocoa Touch?
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    <p>How can I upload/download data from a server in Cocoa Touch. Here's what I have so far...</p> <pre><code>-(void)uploadSchedule:(id)sender { NSData *content = [NSData dataWithContentsOfFile:self.dataFilePath]; NSString *stuff = [[NSString alloc] initWithData:content encoding:NSASCIIStringEncoding]; NSURL *url = [NSURL URLWithString:@"http://thetis.lunarmania.com"]; NSMutableURLRequest* urlRequest = [[NSMutableURLRequest alloc]initWithURL:url]; [urlRequest setHTTPMethod:@"POST"]; [urlRequest setHTTPBody:[stuff dataUsingEncoding:NSASCIIStringEncoding]]; NSLog(@"great success!"); } -(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { // this method is called when the server has determined that it // has enough information to create the NSURLResponse // it can be called multiple times, for example in the case of a // redirect, so each time we reset the data. // receivedData is declared as a method instance elsewhere [receivedData setLength:0]; } -(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { // append the new data to the receivedData // receivedData is declared as a method instance elsewhere [receivedData appendData:data]; } -(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { // release the connection, and the data object [connection release]; // receivedData is declared as a method instance elsewhere [receivedData release]; // inform the user NSLog(@"Connection failed! Error - %@ %@", [error localizedDescription], [[error userInfo] objectForKey:NSErrorFailingURLStringKey]); } -(void)connectionDidFinishLoading:(NSURLConnection *)connection { // do something with the data UIImage *image = [[UIImage alloc] initWithData:receivedData]; [cat setImage:image]; [image release]; // receivedData is declared as a method instance elsewhere NSLog(@"Succeeded! Received %d bytes of data",[receivedData length]); // release the connection, and the data object [connection release]; [receivedData release]; } -(void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge { if ([challenge previousFailureCount] == 0) { NSURLCredential *newCredential; newCredential=[NSURLCredential credentialWithUser:@"ican@moeyo.org" password:@"icanican" persistence:NSURLCredentialPersistenceNone]; [[challenge sender] useCredential:newCredential forAuthenticationChallenge:challenge]; } else { [[challenge sender] cancelAuthenticationChallenge:challenge]; // inform the user that the user name and password // in the preferences are incorrect //[self showPreferencesCredentialsAreIncorrectPanel:self]; } } </code></pre> <p>I'm so lost...</p>
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