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POProblems using NSXMLParser asynchronously
 

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  1. POProblems using NSXMLParser asynchronously
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    <p>I have been developing an app for iPad and consuming the Web Service in it. Everything is working fine except that NSXMLParser is not working asynchronously.</p> <p>I am getting the data from web service and feeding it to NSXMLParser like this</p> <pre><code> xmlParser = [[NSXMLParser alloc] initWithData: webData]; [xmlParser setDelegate: self]; [xmlParser setShouldResolveExternalEntities:YES]; [xmlParser parse]; </code></pre> <p>I am implementing parser delegate methods didStartElement, foundCharacters and didEndElement. Here is my didEndElement method</p> <pre><code>-(void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName { NSLog(@"did end element"); if ([elementName isEqualToString:@"authorizePassengerByEmailResult"]) { NSLog(@"Inside Parser didEnd, CheckNo: %d",checkNo); NSLog(@"Soap Results: %@", soapResults); checkNo = 3; [soapResults setString:@""]; elementFound = FALSE; } } </code></pre> <p>In above method checkNo is a global variable which i am using to check whether its value is changing or not in didEndElement.</p> <p>In my viewController this is how i am calling the stuff</p> <pre><code>- (BOOL)textFieldShouldReturn:(UITextField *)textField { if (textField == txtEmail) { [txtPwd becomeFirstResponder]; } if (textField == txtPwd) { [textField resignFirstResponder]; [self.activityIndicator startAnimating]; [self startWebServiceOperations]; [self onLoginButtonClicked]; } return YES; } </code></pre> <p>Here are the other two mthods</p> <pre><code>- (void)onLoginButtonClicked { [self.activityIndicator stopAnimating]; if ([results isEqualToString:@"Not Authorized"]) { } else { NSLog(@"Should be 3 but Checkno:%d",checkNo); } } - (void)startWebServiceOperations { NSLog(@"I m here, Hello"); NSString *serviceURL = @"URLAddress"; webServices = [[WebServices alloc] init]; NSString *strEmail = [NSString stringWithFormat:@"%@",txtEmail.text]; NSString *strPassword = [NSString stringWithFormat:@"%@",txtPwd.text]; [webServices createRequest:serviceURL methodNameis:@"authorizePassengerByEmail" firstParameter:strEmail secondParameter:strPassword]; } </code></pre> <p>Now the problem is i want to finish up the whole web service process and the NSXMLParser methods and then move to next function. In other words i want startWebServiceOperations function to finish completely and then move to onLoginButtonClicked function.</p> <p>If i see the global variable checkNo it shows output 1 instead of 3.</p> <p>Any help would be highly appreciated.</p>
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