To receive messages from the channel group, subscribe to the channel group created in the previous step.
Click to copy the blue snippets and then paste them into your code.#import "AppDelegate.h" #import <PubNub/PubNub.h> #import <PubNubBridge/PubNub+FAB.h> @interface AppDelegate () @property (nonatomic, strong) PubNub *client; @end @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { __weak __typeof(self) weakSelf = self; self.client = [PubNub client]; [self.client addChannels:@[@"announcements", @"lobby"] toGroup:@"tradeshow" withCompletion:^(PNAcknowledgmentStatus *status) { __strong __typeof(self) strongSelf = weakSelf; // Check whether request successfully completed or not. if (!status.isError) { [strongSelf.client addListener:strongSelf]; [strongSelf.client subscribeToChannelGroups:@[@"tradeshow"] withPresence:NO]; } // Request processing failed. else { // Handle channels list modification for group error. Check 'category' property to find out // possible issue because of which request did fail. // // Request can be resent using: [status retry]; } }]; return YES; } @end