Question

I am trying to capture the event each time a tab bar button is pressed and have added UITabBarControllerDelegate in the AppDelegate.h the below function to AppDelegate.m file but its not getting called. I have also connected tabBarController delegate to First Responder in the IB

Could anyone here help me fix this problem for me please?

// AppDelegate.h

@interface AppDelegate : UIResponder <UIApplicationDelegate, UITabBarControllerDelegate>

// AppDelegate.m

    - (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController
{

   NSLog(@"Touched Tab\n");

}

Answer 1

All it needed was two lines in the below function to make the delegate work. Hope it saves time and frustration for someone.

// AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

  self.m_pTabBarController = (UITabBarController *)self.window.rootViewController;
  self.m_pTabBarController.delegate = self;
  return YES;                            

}

// AppDelegate.h

@interface ftAppDelegate : UIResponder <UIApplicationDelegate, UITabBarControllerDelegate>{
IBOutlet UITabBarController *m_pTabBarController;

}

@property (strong, nonatomic) UIWindow *window;

@property (nonatomic, retain) IBOutlet UITabBarController *m_pTabBarController;

@end