Just dug up this project again...and this is my attempt at sharing the code as @PRSingh requested...hope it helps.
Defined in my .h
NSNetServiceBrowser *serviceBrowser;
NSNetService *service;
NSMutableArray* snames;
NSMutableArray* sips;
UIActivityIndicatorView* spinner;
In my .m
#pragma mark - NSNetServiceDelegate Methods
- (void)netServiceWillResolve:(NSNetService *)sender {
NSLog(@"netServiceWillResolve");
serviceBrowser = [[NSNetServiceBrowser alloc] init];
if(!serviceBrowser) {
NSLog(@"The NSNetServiceBrowser couldn't be allocated and initialized.");
}
serviceBrowser.delegate = self;
[serviceBrowser searchForServicesOfType:@"_type._tcp." inDomain:@"local."];
}
- (void)netServiceWillPublish:(NSNetService *)netService
{
NSLog(@"netServiceWillPublish");
}
- (void)netServiceDidPublish:(NSNetService *)sender {
NSLog(@"netServiceDidPublish");
}
- (void)netService:(NSNetService *)sender didNotPublish:(NSDictionary *)errorDict {
NSLog(@"didNotPublish");
}
- (void)netServiceDidResolveAddress:(NSNetService *)netService {
NSLog(@"netServiceDidResolveAddress");
for (NSData* data in [netService addresses]) {
char addressBuffer[100];
struct sockaddr_in* socketAddress = (struct sockaddr_in*) [data bytes];
int sockFamily = socketAddress->sin_family;
if (sockFamily == AF_INET /*|| sockFamily == AF_INET6*/) {
const char* addressStr = inet_ntop(sockFamily,
&(socketAddress->sin_addr), addressBuffer,
sizeof(addressBuffer));
// int port = ntohs(socketAddress->sin_port);
if (addressStr){
if(![sips containsObject:[NSString stringWithFormat:@"%s",addressStr]]){
[snames addObject:netService.name];
[sips addObject:[NSString stringWithFormat:@"%s",addressStr]];
[self.tableView reloadSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationFade];
}
}
}
}
}
- (void)netService:(NSNetService *)sender didNotResolve:(NSDictionary *)errorDict {
NSLog(@"didNotResolve: %@",errorDict);
}
- (void)netService:(NSNetService *)sender didUpdateTXTRecordData:(NSData *)data {
NSLog(@"didUpdateTXTRecordData");
}
- (void)netServiceDidStop:(NSNetService *)netService {
NSLog(@"netServiceDidStop");
}
#pragma mark - NSNetServiceBrowserDelegate Methods
- (void)netServiceBrowser:(NSNetServiceBrowser *)netServiceBrowser didFindService:(NSNetService *)netService moreComing:(BOOL)moreServicesComing {
NSLog(@"didFindService: %@ lenght:%d",netService.name,[netService.name length]);
[services addObject:netService];
}
- (void)netServiceBrowser:(NSNetServiceBrowser *)netServiceBrowser didRemoveService:(NSNetService *)netService moreComing:(BOOL)moreServicesComing {
[services removeObject:netService];
[netService stop];
int index = [snames indexOfObject:netService.name];
[snames removeObjectAtIndex:index];
[sips removeObjectAtIndex:index];
[self.tableView reloadSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationFade];
NSLog(@"didRemoveService");
}
For this to work I believe that all devices on the network need to be running bonjour with a 'type' of '_type_.tcp' (or what ever name you give it). You can play around with the type just to see what devices on your local network are already on certain service types (https://developer.apple.com/library/mac/qa/qa1312/_index.html).