uitabbar item 2 not being set as selected item - ios

Question

I have this code in my app delegate:
- (void) refreshTabBar{
if(mainTabBarController){
UITabBarItem *tab1 = [[UITabBarItem alloc] initWithTitle:#"Page1" image:[UIImage imageNamed:#"1_icon.png"] tag:3];
UITabBarItem *tab2 = [[UITabBarItem alloc] initWithTitle:#"Page2" image:[UIImage imageNamed:#"2_icon.png"] tag:1];
UITabBarItem *tab3 = [[UITabBarItem alloc] initWithTitle:#"Page3" image:[UIImage imageNamed:#"3_icon.png"] tag:2];
UITabBarItem *tab4 = [[UITabBarItem alloc] initWithTitle:#"Page4" image:[UIImage imageNamed:#"4_icon.png"] tag:4];
UITabBarItem *tab5 = [[UITabBarItem alloc] initWithTitle:#"Page5" image:[UIImage imageNamed:#"5.png"] tag:0];
[[[mainTabBarController viewControllers] objectAtIndex:3] setTabBarItem:tab1];
[[[mainTabBarController viewControllers] objectAtIndex:1] setTabBarItem:tab2];
[[[mainTabBarController viewControllers] objectAtIndex:2] setTabBarItem:tab3];
[[[mainTabBarController viewControllers] objectAtIndex:4] setTabBarItem:tab4];
[[[mainTabBarController viewControllers] objectAtIndex:0] setTabBarItem:tab5];
//reload the ClaimViewController
//[[[[[mainTabBarController viewControllers] objectAtIndex:2] childViewControllers] objectAtIndex:0] reloadView];
NSLog(#"setting selected tabbar controller index to 2");
mainTabBarController.selectedIndex = 2;
[mainTabBarController setSelectedIndex:2];
}
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:UIScreen.mainScreen.bounds];
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
mainTabBarController = [[UITabBarController alloc] init];
UIViewController *viewController = nil;
viewController = [storyboard instantiateViewControllerWithIdentifier:#"SplashScreenViewController"];
self.window.rootViewController = viewController;
[self.window makeKeyAndVisible];
//initialize objects
facebookNetworkController = [[FacebookNetworkController alloc]init];
//UI cutomizations
[self applyTheme];
//TestFlight SDK
[TestFlight takeOff:#"xxxxxxxxxxx-xxxxxxxx-xxxxxxxxx-xxxxxxx"];
// Let the device know we want to receive push notifications
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:
(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
// ------ GOOGLE ANALYTICS ------- \\
// Optional: automatically send uncaught exceptions to Google Analytics.
[GAI sharedInstance].trackUncaughtExceptions = YES;
// Optional: set Google Analytics dispatch interval to e.g. 20 seconds.
[GAI sharedInstance].dispatchInterval = 20;
// Optional: set Logger to VERBOSE for debug information.
[[[GAI sharedInstance] logger] setLogLevel:kGAILogLevelNone];
// Initialize tracker.
tracker = [[GAI sharedInstance] trackerWithName:#"YOYOYOYOYOYO" trackingId:#"UA-43403680-1"];
// NEW RELIC
[NewRelicAgent startWithApplicationToken:#"a6a6a6a6a6a6a6a6a6a6as6as6a6a6"];
[self refreshTabBar];
NSLog(#"Application did finish launching");
return YES;
}
For some reason it does not select this index.
What am I doing wrong?

Answer 1

[[mainTabBarController tabBar] setSelectedItem:[[[mainTabBarController tabBar] items] objectAtIndex:2]];
'Directly modifying a tab bar managed by a tab bar controller is not allowed.'
You can use [mainTabBarController setSelectedIndex:2];
Let this work be done by controller of tab bar.