Unable to set action for UITabbarItem Programmatically - objective-c

Question

i need to set action for my UITabbar, As when i click my tabbaritem it should go to an action which i am having in another viewcontroller.
but it is redirecting to UITableview
here is my code -
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// create our table view controller that will display our store list
FirstViewController *firstViewController = [[EzMasterViewController alloc] init];
// create the navigation controller that will hold our store list and detail view controllers and set the store list as the root view controller
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:firstViewController];
[navController.tabBarItem setTitle:#"Home"];
[navController.tabBarItem setImage:[UIImage imageNamed:#"53-house.png"]];
SecondViewController *secondViewController = [[SecondViewController alloc] init];
// create the navigation controller that will hold our store list and detail view controllers and set the store list as the root view controller
UINavigationController *navController1 = [[UINavigationController alloc] initWithRootViewController:secondViewController];
[navController1.tabBarItem setTitle:#"Scan"];
[navController1.tabBarItem setImage:[UIImage imageNamed:#"195-barcode.png"]];
ThirdViewController *thirdViewController = [[ThirdViewController alloc] init];
// create the navigation controller that will hold our store list and detail view controllers and set the store list as the root view controller
UINavigationController *navController2 = [[UINavigationController alloc] initWithRootViewController:thirdViewController];
[navController2.tabBarItem setTitle:#"Map"];
[navController2.tabBarItem setImage:[UIImage imageNamed:#"07-map-marker.png"]];
// add our view controllers to an array, which will retain them
NSArray *viewControllers = [NSArray arrayWithObjects:navController, navController1,navController2, nil];
// add our array of controllers to the tab bar controller
UITabBarController *tabBarController = [[UITabBarController alloc] init];
[tabBarController setViewControllers:viewControllers];
// set the tab bar controller as our root view controller
[self.window setRootViewController:tabBarController];
// Override point for customization after application launch.
[self.window makeKeyAndVisible];
return YES;
}
By clicking on SecondViewController tabbaritem it should redirect to the action,
where the action is in FirstViewController.

Answer 1

You should consider implementing the UITabBarControllerDelegate's two methods:
– tabBarController:shouldSelectViewController:
– tabBarController:didSelectViewController: