My program does not work in NSURLConnection before tableView - ios

Question

Why doesn't my program work in NSURLConnection before tableView?
// MyLoxFileTVContoller.m
#import "MyLoxFileTVContoller.h"
#import "xml_myloxfile.h"
#import "DetailViewController.h"
#implementation MyLoxFileTVContoller
#synthesize myloxfileArray;
#synthesize exportId_data_Array,readFG_data_Array,receiverId_data_Array,referenceId_data_Array,referenceName_data_Array,reportFullPath_data_Array,reportName_data_Array,senderId_data_Array,senderName_data_Array,sentDate_data_Array,subject_data_Array;
#synthesize detailViewController;
#synthesize window = _window;
#synthesize navigationController;
#synthesize delegate;
#synthesize unReadCount;
#synthesize webData;
-(void)doParse{
NSLog(#"doParse"); //debug
[myloxfileArray removeAllObjects];
NSString *soapMessage = [NSString stringWithFormat:
#"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
"<soapenv:Envelope xmlns:soapenv=\"http://schemas.xmlsoap.org/soap/envelope/\" xmlns:con=\"http://controller.exportingreportwebservice.lox.org/\">\n"
"<soapenv:Header/>\n"
"<soapenv:Body>\n"
"<con:getReport>\n"
"<arg0>%#</arg0>\n"
"</con:getReport>\n"
"</soapenv:Body>\n"
//"</soapenv:Envelope>\n", nameInput.text
"</soapenv:Envelope>\n", #"2711"
];
//NSLog(soapMessage);
NSURL *url = [NSURL URLWithString:#"http://iloxley.loxley.co.th:8081/ExportingReportWebservice/ExportingReportWebservice?wsdl"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength = [NSString stringWithFormat:#"%d", [soapMessage length]];
[theRequest addValue: #"text/xml; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[theRequest addValue: msgLength forHTTPHeaderField:#"Content-Length"];
[theRequest setHTTPMethod:#"POST"];
[theRequest setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
if( theConnection )
{
NSLog(#"if theConnection"); //debug
webData = [NSMutableData data];
}
else
{
NSLog(#"theConnection is NULL");
}
NSLog(#"end doParse"); //debug
}
-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
NSLog(#"connection didReceiveResponse"); //debug
[webData setLength: 0];
}
-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
NSLog(#"connection didReceiveData"); //debug
[webData appendData:data];
}
-(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
NSLog(#"ERROR with theConenction");
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSLog(#"connectionDidFinishLoading"); //debug
NSLog(#"DONE. Received Bytes: %d", [webData length]);
NSString *theXML = [[NSString alloc] initWithBytes: [webData mutableBytes] length:[webData length] encoding:NSUTF8StringEncoding];
//NSLog(#"theXML = %# ", theXML);
//NSLog(#"webData = %# ", webData);
//NSXMLParser *nsXmlParser = [[NSXMLParser alloc] initWithContentsOfURL:theXML];
NSXMLParser *nsXmlParser = [[NSXMLParser alloc] initWithData: webData];
// create and init our delegate
xml_myloxfile_Parser *parser = [[xml_myloxfile_Parser alloc] initXMLParser];
//set delegate
[nsXmlParser setDelegate:parser];
//parsing...
BOOL success = [nsXmlParser parse];
if (success) {
NSLog(#"if success"); //debug
exportId_data_Array = [parser getExportId_data_Array];
readFG_data_Array = [parser getReadFG_data_Array];
receiverId_data_Array = [parser getReceiverId_data_Array];
referenceId_data_Array = [parser getReferenceId_data_Array];
referenceName_data_Array = [parser getReferenceName_data_Array];
reportFullPath_data_Array = [parser getReportFullPath_data_Array];
reportName_data_Array = [parser getReportName_data_Array];
senderId_data_Array = [parser getSenderId_data_Array];
senderName_data_Array = [parser getSenderName_data_Array];
sentDate_data_Array = [parser getSentDate_data_Array];
subject_data_Array = [parser getSubject_data_Array];
items_exportId = exportId_data_Array;
items_readFG = readFG_data_Array;
items_receiverId = receiverId_data_Array;
items_referenceId = referenceId_data_Array;
items_referenceName = referenceName_data_Array;
items_reportFullPath = reportFullPath_data_Array;
items_reportName = reportName_data_Array;
items_senderId = senderId_data_Array;
items_senderName = senderName_data_Array;
items_sentDate = sentDate_data_Array;
items_subject = subject_data_Array;
NSLog(#"items_subject = %# ", items_subject);
} else {
NSLog(#"fail");
}
}
-(void) loadView
{
NSLog(#"loadView"); //debug
if (items_subject == nil) {
//items_subject = [NSMutableArray arrayWithObjects:#"1",#"2",#"3",nil];
}
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
NSLog(#"numberOfSectionsInTableView"); //debug
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
NSLog(#"tableView numberOfRowsInSection"); //debug
// Return the number of rows in the section.
NSLog(#"[items_subject count] = %d ", [items_subject count]);
return [items_subject count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSLog(#"tableView cellForRowAtIndexPath"); //debug
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
//cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
// Configure the cell...
cell.textLabel.text = [NSString stringWithFormat:#"%#" ,[items_subject objectAtIndex:indexPath.row]];
// Populate the cell's detail text label.
NSString *detailText = [NSString stringWithFormat:#"date: %# from: %# reference: %#",
[[items_sentDate objectAtIndex:indexPath.row] lowercaseString],[[items_senderName objectAtIndex:indexPath.row] lowercaseString],[[items_referenceName objectAtIndex:indexPath.row] lowercaseString]];
[[cell detailTextLabel] setText:detailText];
//CGAffineTransform translate = CGAffineTransformMakeTranslation(10.0, 0.0);
//[[cell detailTextLabel] setTransform:translate];
//unReadCount = 0;
if([[items_readFG objectAtIndex:indexPath.row] isEqualToString:#"N"]){
cell.textLabel.textColor = [UIColor redColor];
unReadCount = unReadCount+1;
}else{
cell.textLabel.textColor = [UIColor blackColor];
unReadCount = unReadCount;
}
NSLog(#"unReadCount = %d ",unReadCount);
//Adding A Badge Number
//[[UIApplication sharedApplication] setApplicationIconBadgeNumber:unReadCount];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSLog(#"tableView didSelectRowAtIndexPath"); //debug
//sof2
DetailViewController *detailController = [[DetailViewController alloc] initWithNibName:#"DetailView" bundle:nil];
[detailController changeExportIdText:[exportId_data_Array objectAtIndex:indexPath.row]];
[detailController changeReadFGText:[readFG_data_Array objectAtIndex:indexPath.row]];
[detailController changeReceiverIdText:[receiverId_data_Array objectAtIndex:indexPath.row]];
[detailController changeReferenceIdText:[referenceId_data_Array objectAtIndex:indexPath.row]];
[detailController changeReferenceNameText:[referenceName_data_Array objectAtIndex:indexPath.row]];
[detailController changeReportFullPathText:[reportFullPath_data_Array objectAtIndex:indexPath.row]];
[detailController changeReportNameText:[reportName_data_Array objectAtIndex:indexPath.row]];
[detailController changeSenderIdText:[senderId_data_Array objectAtIndex:indexPath.row]];
[detailController changeSenderNameText:[senderName_data_Array objectAtIndex:indexPath.row]];
[detailController changeSentDateText:[sentDate_data_Array objectAtIndex:indexPath.row]];
[detailController changeSubjectText:[subject_data_Array objectAtIndex:indexPath.row]];
//[tableView deselectRowAtIndexPath:indexPath animated:YES];
if([delegate respondsToSelector:#selector(showItemDetails:)])
{
//[delegate showItemDetails:[subject_data_Array objectAtIndex:indexPath.row]];
[delegate showItemDetails:[NSString stringWithFormat:#"%#||%#||%#||%#||%#||%#||%#||%#||%#||%#||%#"
,[exportId_data_Array objectAtIndex:indexPath.row]
,[readFG_data_Array objectAtIndex:indexPath.row]
,[receiverId_data_Array objectAtIndex:indexPath.row]
,[referenceId_data_Array objectAtIndex:indexPath.row]
,[referenceName_data_Array objectAtIndex:indexPath.row]
,[reportFullPath_data_Array objectAtIndex:indexPath.row]
,[reportName_data_Array objectAtIndex:indexPath.row]
,[senderId_data_Array objectAtIndex:indexPath.row]
,[senderName_data_Array objectAtIndex:indexPath.row]
,[sentDate_data_Array objectAtIndex:indexPath.row]
,[subject_data_Array objectAtIndex:indexPath.row]
]];//test multi var'
}
// Alert will pop up when using Simulator or iPod Touch for example
/*
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:[note_subject_data_Array objectAtIndex:indexPath.row] message:#"Test" delegate:nil cancelButtonTitle:#"Close" otherButtonTitles:nil];
[alert show];
*/
}
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {
return UITableViewCellEditingStyleDelete;
}
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
NSLog(#"viewDidLoad"); //debug
[self doParse];
[super viewDidLoad];
}
- (void)viewDidUnload
{
NSLog(#"viewDidUnload"); //debug
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return YES;
}
#end
The log:
2012-09-11 15:27:15.377 MyLoxFile[2698:f803] loadView
2012-09-11 15:27:15.378 MyLoxFile[2698:f803] viewDidLoad
2012-09-11 15:27:15.379 MyLoxFile[2698:f803] doParse
2012-09-11 15:27:15.382 MyLoxFile[2698:f803] if theConnection
2012-09-11 15:27:15.382 MyLoxFile[2698:f803] end doParse
2012-09-11 15:27:15.385 MyLoxFile[2698:f803] numberOfSectionsInTableView
2012-09-11 15:27:15.386 MyLoxFile[2698:f803] tableView numberOfRowsInSection
2012-09-11 15:27:15.391 MyLoxFile[2698:f803] [items_subject count] = 0
2012-09-11 15:27:15.454 MyLoxFile[2698:f803] connection didReceiveResponse
2012-09-11 15:27:15.455 MyLoxFile[2698:f803] connection didReceiveData
2012-09-11 15:27:15.455 MyLoxFile[2698:f803] connectionDidFinishLoading
2012-09-11 15:27:15.455 MyLoxFile[2698:f803] DONE. Received Bytes: 1948
2012-09-11 15:27:15.457 MyLoxFile[2698:f803] if success
2012-09-11 15:27:15.457 MyLoxFile[2698:f803] items_subject = (
"Surgical Report ",
"Genotype Report",
"HPV Report"
)
It has data in array but not have in tableView numberOfRowsInSection
Before this code i use XML (not WSDL) it's work
This is My Code -> http://www.vasuta.com/ios/MyLoxFile.zip

Answer 1

It seems like your tableview is load et call its delegates methods before your NSURLConnection finished downloading.
You have launch NSURLConnection by
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
so the connection is asynchronous. You can't be sure whether it finishes before or after your tableview loads its view.
But your can always do a check in your tableview methods to make your app work. For example:
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
int nbCount = [items_subject count];
if (nbCount == 0)
return 1;
else
return [items_subject count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
int nbCount = [items_subject count];
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
// Configure the cell...
if (nbCount ==0)
cell.textLabel.text == #"Loading";
else
{
// your configuration
cell.textLabel.text = [NSString stringWithFormat:#"%#" ,[items_subject objectAtIndex:indexPath.row]];
}
return cell;
}
In your method "ConnectionDidFinishLoading", then your can call [tableview reloaddata] to update your tableview.
[EDIT] on 12/09/2012
I've got your code work(not a nice solution), you should rethink how you organize your viewControllers.
add the IBOutlet TableView to myloxfileController.tableView.
add this line myloxfileContoller.tableView = myloxfileTable; after the line myloxfileContoller.view = myloxfileContoller.tableView; in - (void)viewDidLoad of the interface ViewController .
reload tableview data when connection finished.
add this line [self.tableView reloadData]; after the line items_subject = subject_data_Array; in -(void)connectionDidFinishLoading:(NSURLConnection *)connection of the interface MyLoxFileTVController .
This will work because when the download finished, you reloadData of the IBOutlet TableView.

Answer 2

Have you used [uitableview reloadData] after updating your NSArray?

Answer 3

replace with
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
NSLog(#"tableView numberOfRowsInSection"); //debug
// Return the number of rows in the section.
NSLog(#"[items_subject count] = %# ", [items_subject count]);
return [items_subject count];
}