CODEWITHSUNDEEP
iosobjective-cuiviewcontroller
Tanddd
Tanddd

Reputation: 47

How to return to root ViewController, if the current is deeply nested?

I have a problem that my iOS app has several ViewControllers.

For example: ViewControllers named like A, B, C. A jumped to B with pushViewController, B jumped to C with presentViewController , C jumped to D with presentViewController and so on.

If the current ViewController is Z or some other ViewController, how can I jump back to A directly?

Upvotes: 0

Views: 144

Answers (4)

Ekta Padaliya
Ekta Padaliya

Reputation: 5799

Try Below code. It will work for all cases :

for (UIViewController *controller in self.navigationController.viewControllers)
{
        if ([controller isKindOfClass:[nameOfYourViewControllerYouWantToNavigate class]])
        {
            if(controller.isBeingPresented)
                 [controller.presentingViewController dismissViewControllerAnimated:YES completion:NULL];
            else
                 [self.navigationController popToViewController:controller animated:YES];

            break;
        }
}

Upvotes: 1

user3182143
user3182143

Reputation: 9589

Whatever you want to go back to A ViewController from any other view controller, first you have to set that as RootViewController. If you use XIB you must set as root in app delegate didFinishLaunchWithOptions method. If you use storyboard you should set NavigationController in storyboard and set AViewController as ROOT using control+drag(mouse). I work in a project which has lot of view controllers. It has pushViewController and PresentViewControllers also I set A asRootViewController. So I can return from any view controller to RootViewController.

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{
      // Override point for customization after application launch.
     self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen] bounds]];
     AViewController *aVC = [[AViewController alloc]initWithNibName:@“AViewController" bundle:nil];
     UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:aVC];
     self.window.rootViewController = aVC;
     [navController setNavigationBarHidden:YES];
     self.window.backgroundColor = [UIColor clearColor];
     [self.window makeKeyAndVisible];
     return YES;
}

For going to AViewController from any other view controller

- (IBAction)actionGoBack:(id)sender 
{
    [self.navigationController popToRootViewControllerAnimated:YES];
}

Upvotes: 0

Raj Aggrawal
Raj Aggrawal

Reputation: 761

[[self navigationController] popToRootViewControllerAnimated:YES];

It will pop your viewcontroller to Root controller.

Upvotes: 1

J.Hunter
J.Hunter

Reputation: 586

For the view controllers show by pushViewController, you can get rootViewController via [self.navigationController.viewControllers objectAtIndex:0]

Others shown by presentViewController, you can get parent view controller via self.presentingViewController

Upvotes: 0

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