Why are my NSURLConnection delegation methods not called? - xcode

Question

I've done exactly what this official documentation instructed. I created a console project for testing purpose. And then I created a class called RequestSender (see code below) and I made an instance of this class in the main function.
RequestSender.h:
#import <Foundation/Foundation.h>
#interface RequestSender : NSObject <NSURLConnectionDelegate> {
NSMutableData* d;
}
#end
RequestSender.m:
#import "RequestSender.h"
#implementation RequestSender
- (id)init {
self = [super init];
if (self) {
NSString* s = #"http://www.apple.com/";
NSURL* u = [[NSURL alloc] initWithString:s];
NSURLRequest* r = [[NSURLRequest alloc] initWithURL:u];
NSURLConnection* c = [[NSURLConnection alloc] initWithRequest:r delegate:self];
if (c) {
d = [NSMutableData data];
}
return self;
} else {
return nil;
}
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
[d setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
[d appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
}
#end
This will no doubt be executed in the main thread and default run loop. However non of the delegation methods are called.
I've done a lot of testing and read many posts but I still don't have a clue.
Please help me. This is driving me mad.
Thanx!

Answer 1

I believe you're missing the part where you start the connection. The connection class offers another method for this, or you could just call it off of your "c" object.
NSURLConnection* c = [[NSURLConnection alloc] initWithRequest:r delegate:self];
if (c) {
d = [NSMutableData data];
[c start];
}
or
NSURLConnection* c = [[NSURLConnection alloc] initWithRequest:r delegate:self startImmediately:YES];
if (c) {
d = [NSMutableData data];
}