CODEWITHSUNDEEP
iphoneiosipadios5
Ariel Zehao Zhang
Ariel Zehao Zhang

Reputation: 564

How can I get ViewController from TabBarController on AppDelegate?

I use iOS5 storyboard, and my initial view controller is TabBarController, there are four relationships to view1 & view2 & view3 & view4, so, how can I get the view3's view controller?

I tried:

[[[[self.window.rootViewController navigationController] tabBarController] viewControllers] objectAtIndex:2];

But it doesn't work...

Upvotes: 12

Views: 43706

Answers (5)

Gurjinder Singh
Gurjinder Singh

Reputation: 10299

Swift 4.0 

let viewC = self?.tabBarController.viewControllers.first // will give single Navigation Controller on index 0
let viewC = self?.tabBarController?.viewControllers// will give array of Navigation Controller

Further you can check the Visible ViewController 

if let nav = viewC as? UINavigationController {
   if nav.visibleViewController is YourViewControllerName{
        // Do Code
     }
}

Upvotes: 5

vilas
vilas

Reputation: 31

   UIViewController *loginViewController=self.window.rootViewController;

   UITabBarController *controller=loginViewController.tabBarControllerObj;

   UIViewController *selectedController=controller.selectedViewController;

From this you will get selected view controller.

For getting all view controller just replace 

NSArray *viewControllers = [controller viewControllers];

Upvotes: 3

Dima
Dima

Reputation: 23634

You said that your initial (root) view controller is a UITabBarController but you are referring to a view controller with a navigation controller with a tab bar controller. Are you getting mixed up in your view controller hierarchy?

edit:

if your root view controller is actually just a tab bar controller and you want to get the 3rd tab here is the code:

[[((UITabBarController *)self.window.rootViewController) viewControllers] objectAtIndex:2];

Upvotes: 35

Haider
Haider

Reputation: 4961

[self.tabBarController setSelectedIndex:2];

Upvotes: 9

Tunvir Rahman Tusher
Tunvir Rahman Tusher

Reputation: 6631

Try this way

In any view controller

 YourViewController *yourViewController= (YourViewController*)  [self.tabBarController.viewControllers objectAtIndex:3];

this return your that view controller object.Cast it to your view controller and you are ready to use that. run and Go

Upvotes: 7

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