Removing viewcontrollers from navigation stack

Question

I have a navigation stack, with say 5 UIViewControllers. I want to remove the 3rd and 4th viewcontrollers in the stack on the click of a button in the 5th viewcontroller. Is it possible to do this? If so how?

Answer 1

Use this code and enjoy:

NSMutableArray *navigationArray = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers];  // [navigationArray removeAllObjects];    // This is just for remove all view controller from navigation stack. [navigationArray removeObjectAtIndex: 2];  // You can pass your index here self.navigationController.viewControllers = navigationArray; [navigationArray release]; 

Hope this will help you.

Edit: Swift Code

guard let navigationController = self.navigationController else { return } var navigationArray = navigationController.viewControllers // To get all UIViewController stack as Array navigationArray.remove(at: navigationArray.count - 2) // To remove previous UIViewController self.navigationController?.viewControllers = navigationArray 

Edit: To remove all ViewController except last one -> no Back Button in the upper left corner

guard let navigationController = self.navigationController else { return } var navigationArray = navigationController.viewControllers // To get all UIViewController stack as Array let temp = navigationArray.last navigationArray.removeAll() navigationArray.append(temp!) //To remove all previous UIViewController except the last one self.navigationController?.viewControllers = navigationArray 

Answer 2

You can first get all the view controllers in the array and then after checking with the corresponding view controller class, you can delete the one you want.

Here is small piece of code:

NSArray* tempVCA = [self.navigationController viewControllers];  for(UIViewController *tempVC in tempVCA) {     if([tempVC isKindOfClass:[urViewControllerClass class]])     {         [tempVC removeFromParentViewController];     } } 

I think this will make your work easier.