ios swift - dismiss root view controller of navigation controller

Question

I'm opening a navigation controller from a button click of my main view controller.

I programatically created a left bar button item on the navigation controller which I want to dismiss the nav controller and go back to my main controller.

I'm essentially going back on the root view controller of the navigation controller.

I've tried

navigationController?.dismissViewControllerAnimated(true, completion: nil)

and

self.dismissViewControllerAnimated(true, completion: nil)

and get an NSException on both.

Please advise.

May be you're calling these method on `rootViewController` itself. what exception you are getting, BTW? — Suryakant Sharma, Mar 15 '16 at 04:45
sounds more like a usecase for unwind segues: http://stackoverflow.com/questions/12561735/what-are-unwind-segues-for-and-how-do-you-use-them — Christian Dietrich, Mar 15 '16 at 05:00
unrecognized selector sent to instance 0x154da4960 2016-03-17 19:16:29.363 [605:192637] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[ back:]: unrecognized selector sent to instance 0x154da4960' — Walking, Mar 17 '16 at 23:17

score 9 · Answer 1 · answered May 22 '17 at 14:16

9

Swift 3:

self.view.window!.rootViewController?.dismiss(animated: false, completion: nil)

It will dismiss all the presented view controllers and remain root view controller.

answered May 22 '17 at 14:16

Umit Kaya

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score 4 · Answer 2 · edited Oct 04 '16 at 11:22

4

If you are pushing your ViewController, you should use pop to remove that ViewController from Navigation Stack and land on the previous ViewController. Try this...

self.navigationController?.popViewControllerAnimated(true);

SWIFT 3

_ = navigationController?.popViewController(animated: true);

edited Oct 04 '16 at 11:22

Victor Rius

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answered Mar 15 '16 at 05:20

Suryakant Sharma

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score 0 · Answer 3 · answered Mar 15 '16 at 04:40

0

dismissViewController works when you are showing a viewController using presentViewController, that maybe the root view controller of a navigation stack, or a stand alone view controller.

answered Mar 15 '16 at 04:40

Gaurav Pal

141
7

score 0 · Answer 4 · answered Mar 15 '16 at 05:05

0

self.presentingViewController?.presentingViewController?.dismissViewControllerAnimated(true, completion: nil)

Try this :)

answered Mar 15 '16 at 05:05

Milap Kundalia

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score 0 · Answer 5 · answered Mar 03 '17 at 11:28

A year later.. The exception indicates that there is something wrong with the selector that you provide to the action param, when adding the left bar button.

Something like this should work:

creating bar button item:

let backBarButton = UIBarButtonItem.init(barButtonSystemItem: UIBarButtonSystemItem.stop, target: self, action: #selector(dismissView))

dismiss root view controller:

func dismissView() {
    self.dismiss(animated: true, completion: nil)
}

score 0 · Answer 6 · answered Mar 10 '18 at 07:22

0

Apple Dev already provides very simple code which is

self.navigationController?.popToRootViewController(animated: false)

answered Mar 10 '18 at 07:22

SeokHyun Kim

1

ios swift - dismiss root view controller of navigation controller

6 Answers6

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