Navigate Back to previous view controller

Question

I have a UIView->UICollectionView->UICollectionViewCell. I am trying to navigate back programatically but none of these works. The code did called. I am using StoryBoard.

- (void) goBack:(NSNotification *) notification {
      // [self.navigationController popViewControllerAnimated:YES];
     //  [self dismissViewControllerAnimated:YES completion:nil];
      [self.navigationController popToRootViewControllerAnimated:YES];
}

Answer 1

Go back to parent view controller and dealloc current view controller ex :

- (void)applicationDidEnterBackground:(NSNotification *)notification
{
    NSInteger numberOfViewControllers = self.navigationController.viewControllers.count;

    UIViewController *vc = [self.navigationController.viewControllers objectAtIndex:numberOfViewControllers - 2];

    [self.navigationController popToViewController:vc animated:NO];
}

or another view controller

Answer 2

With swift3,

@IBAction func back(_ sender: UIButton) {
    self.dismiss(animated: true, completion: nil)     
}

Answer 3

By using below line we can go to parent view controller

[self.navigationController popViewControllerAnimated:YES]; 

By using below line we can move to main/root view controller

[self.navigationController popToRootViewControllerAnimated:YES]; 

By using below line we can move to any view controller

[self.navigationController popToViewController:viewControllerObject animated:YES]; 

Answer 4

Swift solutions for easy copy pasting:

navigationController?.popViewControllerAnimated(true)

Answer 5

How about...

 [self.navigationController dismissViewControllerAnimated:YES completion:NULL];

Assuming that you are currently in a navigation-based controller and you wanted to go back to the previous controller before you got into a navigation-based controller.

Answer 6

Swift 4.1:

navigationController.popViewController(animated: true)