URLConnection Delegate methods are not getting called

Question

I am using two web services in my code. and calling methods on tap of alert button My Code is

(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if(buttonIndex==1) { if(alertView==AlertDel) {
```
[self DeleteFromServerDatabase];
```
} } } -(void)DeleteFromServerDatabase {[loading setFrame:CGRectMake(140, 210, 40, 40)]; [loading setHidden:NO]; [loader setHidden:NO]; [self.view bringSubviewToFront:loader]; [self.view bringSubviewToFront:loading]; [loading startAnimating]; NSString *devToken=app.iDevice; // NSString *devToken= [[UIDevice currentDevice] uniqueIdentifier]; if(devToken) {

} else devToken=@"c677"; NSString *soapMessage = [NSString stringWithFormat: @"\n" "\n" "\n" "\n" "%@\n" "%@\n" "%@\n" "\n" "\n" "\n",bday.fname,bday.lname,devToken ];
```
NSURL *url = [NSURL URLWithString:@"http://72.167.96.135:8101/BirthDayWebService.asmx"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength = [NSString stringWithFormat:@"%d", [soapMessage length]];

[theRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
[theRequest addValue: @"http://tempuri.org/DeleteBirthday" forHTTPHeaderField:@"SOAPAction"];
[theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"];
[theRequest setHTTPMethod:@"POST"];
[theRequest setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]];

theConnection2 = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];

if( theConnection2 )
{
    webData = [[NSMutableData data] retain];
}
else
{

}
```
} but any of UrlConnection delegates are not getting called. Please help me out of this

Nathan Eror Nathan Eror · Accepted Answer · 2011-01-07T08:13:20

You're not doing anything in your else clause:

if( theConnection2 )
{
  webData = [[NSMutableData data] retain];
}
else
{

}

Are you sure that the connection was was properly initialized? The NSURLConnection docs say:

Return Value

The URL connection for the URL request. Returns nil if a connection can't be initialized.

Also, make sure that you start the load on the main thread or whatever thread you want to be called back on:

Messages to the delegate will be sent on the thread that calls this method.

URLConnection Delegate methods are not getting called

2 Answers