Jump to next controller with UINavigationController on iPhone

Question

The program has a nav bar and normally when clicking a button in viewController1 it goes to viewController2. when clicking a button in viewController2 it goes to viewController3. and the user can navigate back from viewController3 to viewController2 then to viewController1 using the back button in the navigation bar.

I want to make a button that programatically takes the user directly to viewController3 from viewController1. then the user can navigate back from viewController3 to viewController2 to viewController1.

Is there a way to push two views into the navigation controller? or is another way to achieve the desired behavior? how should i design this?

Answer 1

Sorry for misreading your question. Because you want to push 2 view controller and then go back 1 by 1. I think the solution now is simple.

You only need to push view controller 2 times, 1 without animation and 1 with animation like this:

[viewController1.navigationController pushViewController:viewController2 animated:NO];
[viewController2.navigationController pushViewController:viewController3 animated:YES];

So, for the user, it happens like you only push 1 but in behind the scene, you actually push 2 view controllers. Then when you want to come back, just need to pop 1 by 1.

Answer 2

You can directly set the navigation stack on a UINavigationController using . setViewControllers:animated:.

For example, assuming this code is somewhere in viewController1 like the handler for a button press in it's view:

NSMutableArray* viewControllers = [self.navigationController.viewControllers mutableCopy];
UIViewController* controller = [[MyViewController2 alloc] init];
[viewControllers addObject:controller];
[controller release];
controller = [[MyViewController3 alloc] init];
[viewControllers addObject:controller];
[controller release];
[self.navigationController setViewControllers:viewControllers animated:YES];

The creation business at the top of that with the mutableCopy call is so that you're preserving whatever is already on the navigation stack.