How to dismiss ViewController in Swift?

Question

I am trying to dismiss a ViewController in swift by calling dismissViewController in an IBAction

  @IBAction func cancel(sender: AnyObject) {
    self.dismissViewControllerAnimated(false, completion: nil)
    println("cancel")
}

@IBAction func done(sender: AnyObject) {
    self.dismissViewControllerAnimated(false, completion: nil)
    println("done")
}

random image of a segue

I could see the println message in console output but ViewController never gets dismissed. What could be the problem?

I did the mapping by setting a segue - "show", see the attached screenshot. — rshankar, Jul 10 '14 at 05:26
Try to use modal. If you use push, you should dismiss it with the pop method of the navigation controller. — dasdom, Jul 10 '14 at 05:40

score 458 · Accepted Answer · edited Dec 21 '18 at 09:37

458

From you image it seems like you presented the ViewController using push

The dismissViewControllerAnimated is used to close ViewControllers that presented using modal

Swift 2

navigationController.popViewControllerAnimated(true)

Swift 4

navigationController?.popViewController(animated: true)

dismiss(animated: true, completion: nil)

edited Dec 21 '18 at 09:37

Cal

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answered Jul 10 '14 at 05:41

Zoon Nooz

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8

How would you do it for a 'Show Detail' segue? – MoralCode Nov 12 '14 at 00:32
2

For **Swift 2.2** navigationController!.popViewControllerAnimated(true) – swiftBoy May 10 '16 at 13:12
7

For **Swift 3** navigationController!.popViewController(animated: true) – Alex Trott Jul 30 '16 at 15:06

satheesh · Answer 2 · 2017-07-18T05:44:35.207

193

I have a solution for your problem. Please try this code to dismiss the view controller if you present the view using modal:

Swift 3:

self.dismiss(animated: true, completion: nil)

OR

If you present the view using "push" segue

self.navigationController?.popViewController(animated: true)

edited Jul 18 '17 at 05:44

answered Jul 10 '14 at 05:35

satheesh

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1

Thanks, but still the same result, it does not dismiss the ViewController – rshankar Jul 10 '14 at 05:39
5

How is this different to the method the OP used? – dasdom Jul 10 '14 at 05:41
34

Conversation is useless if you don't react to my questions. – dasdom Jul 10 '14 at 05:54
_ = self.navigationController?.popViewController(animated: true) – valexa Jan 23 '17 at 10:06
For me 'dismiss' is taking me back to the login screen, pre where the tab controller is defined – Bob The Coder Jun 19 '23 at 12:02

BaSha · Answer 3 · 2017-01-03T06:42:49.160

21

if you do this i guess you might not get println message in console,

@IBAction func cancel(sender: AnyObject) {
  if(self.presentingViewController){
    self.dismissViewControllerAnimated(false, completion: nil)
    println("cancel")
   }
}

@IBAction func done(sender: AnyObject) {
  if(self.presentingViewController){
    self.dismissViewControllerAnimated(false, completion: nil)
    println("done")
  }    
}

edited Jan 03 '17 at 06:42

answered Jul 10 '14 at 05:49

BaSha

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http://stackoverflow.com/questions/30840235/cant-dismiss-my-previous-alertcontroller-completely. Any Help,please?I am stuck at that for so long who still cant find solution – Thiha Aung Jun 16 '15 at 08:17

Chase McElroy · Answer 4 · 2018-03-06T18:49:15.463

19

In Swift 3.0 to 4.0 it's as easy as typing this into your function:

self.dismiss(animated: true, completion: nil)

Or if you're in a navigation controller you can "pop" it:

self.navigationController?.popViewController(animated: true)

edited Mar 06 '18 at 18:49

answered Oct 20 '16 at 05:04

Chase McElroy

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dismiss not working, because I'm using pushViewController. Only self.navigationController?.popViewController(animated: true) working. – Naresh Jul 17 '18 at 09:48

score 15 · Answer 5 · edited May 15 '16 at 05:00

15

embed the View you want to dismiss in a NavigationController
add a BarButton with "Done" as Identifier
invoke the Assistant Editor with the Done button selected
create an IBAction for this button

add this line into the brackets:

self.dismissViewControllerAnimated(true, completion: nil)

edited May 15 '16 at 05:00

Bob Gilmore

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answered Jan 19 '15 at 16:36

LAOMUSIC ARTS

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score 15 · Answer 6 · edited Dec 21 '18 at 10:57

15

Use:

self.dismiss(animated: true, completion: nil)

instead of:

self.navigationController.dismissViewControllerAnimated(true, completion: nil)

edited Dec 21 '18 at 10:57

Cal

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answered Jul 16 '15 at 10:53

jobima

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2

add a ! to the navigationController and it works for me – Jason G Aug 26 '15 at 20:01
2

@naturalc: Be aware that if navigationController is nil and you put !, the app will crash – jobima Nov 18 '15 at 10:37

score 12 · Answer 7 · answered Dec 05 '18 at 08:47

From Apple documentations:

The presenting view controller is responsible for dismissing the view controller it presented

Thus, it is a bad practise to just invoke the dismiss method from it self.

What you should do if you're presenting it modal is:

presentingViewController?.dismiss(animated: true, completion: nil)

score 11 · Answer 8 · answered Jun 30 '16 at 21:36

If you presenting a controller without a Navigation Controller, you can call the following code from a method of the presented controller.

self.presentingViewController?.dismiss(animated: true, completion: nil)

If your ViewController is presented modally, optional presentingViewController will be not nil and the code will be executed.

score 7 · Answer 9 · edited Jun 25 '18 at 12:24

Based on my experience, I add a method to dismiss me as extension to UIViewController:

extension UIViewController {
    func dismissMe(animated: Bool, completion: (()->())?) {
        var count = 0
        if let c = self.navigationController?.viewControllers.count {
            count = c
        }
        if count > 1 {
            self.navigationController?.popViewController(animated: animated)
            if let handler = completion {
                handler()
            }
        } else {
            dismiss(animated: animated, completion: completion)
        }
    }
}

Then I call this method to dismiss view controller in any UIViewController subclass. For example, in cancel action:

class MyViewController: UIViewController {
   ...
   @IBAction func cancel(sender: AnyObject) {
     dismissMe(animated: true, completion: nil)
   }
   ...
}

score 6 · Answer 10 · edited Jan 20 '21 at 06:45

6

So if you wanna dismiss your Viewcontroller use this. This code is written in button action to dismiss VC

  @IBAction func cancel(sender: AnyObject) {
   dismiss(animated: true, completion: nil)
  }

edited Jan 20 '21 at 06:45

Farrukh Makhmudov

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answered Mar 25 '17 at 14:02

Sai kumar Reddy

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While this code snippet may solve the question, [including an explanation](http://meta.stackexchange.com/questions/114762/explaining-entirely-code-based-answers) really helps to improve the quality of your post. Remember that you are answering the question for readers in the future, and those people might not know the reasons for your code suggestion. – DimaSan Mar 25 '17 at 21:52

score 6 · Answer 11 · answered Jul 03 '20 at 19:35

6

Since you used push presented viewController, therefore, you can use

self.dismiss(animated: false, completion: nil)

answered Jul 03 '20 at 19:35

Ionic

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score 5 · Answer 12 · answered Oct 19 '16 at 10:29

5

Don't create any segue from Cancel or Done to other VC and only write this code your buttons @IBAction

@IBAction func cancel(sender: AnyObject) {
    dismiss(animated: false, completion: nil)
}

answered Oct 19 '16 at 10:29

Fatih

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Chetan Bhalara · Answer 13 · 2014-07-10T09:18:29.387

4

Here is the one way to dismiss present view controller and move back to previous view controller. You can do this through Storyboard only.

Open Storyboard
Right click on Cancel button and drag it to previous view controller, where you want to move back to previous controller
Now release the right click and you can see some actions which performs on cancel button
Now choose "popover present" option from list
Now you can dismiss your current view by click on cancel button

Please try this, It's working with me.

Second Way - Use - navigationController.popViewControllerAnimated(true)

Best luck..

edited Jul 10 '14 at 09:18

answered Jul 10 '14 at 05:46

Chetan Bhalara

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http://stackoverflow.com/questions/30840235/cant-dismiss-my-previous-alertcontroller-completely. Any Help,please?I am stuck at that for so long who still cant find solution – Thiha Aung Jun 16 '15 at 08:17
3

This is wrong. You are never dismissing the view you are instead presenting a new view controller on top of the current one, causing a memory leak. This will most likely get your app rejected from the app store. – 3366784 May 08 '17 at 06:45

score 4 · Answer 14 · answered Jun 04 '20 at 11:58

If you using the present method in the parent VC then you should call this function, to dismiss the child VC use this

self.dismiss(animated: true, completion: nil)

if you calling child VC by using push method, to dismiss the child VC use this

self.navigationController?.popViewController(animated: true)

score 3 · Answer 15 · answered Apr 06 '16 at 12:11

For reference, be aware that you might be dismissing the wrong view controller. For example, if you have an alert box or modal showing on top of another modal. (You could have a Twitter post alert showing on top of your current modal alert, for example). In this case, you need to call dismiss twice, or use an unwind segue.

score 3 · Answer 16 · edited Apr 05 '19 at 14:46

3

Try this:

@IBAction func close() {
  dismiss(animated: true, completion: nil)
}

edited Apr 05 '19 at 14:46

Derek Pollard

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answered Apr 05 '19 at 14:29

The method called "dismissViewController" it only takes a single parameter, which I suppose would look like to dismiss animated to previous view, this is the simplest solution. – Apr 05 '19 at 15:12

score 2 · Answer 17 · edited Oct 15 '16 at 04:27

2

If you are presenting a ViewController modally, and want to go back to the root ViewController, take care to dismiss this modally presented ViewController before you go back to the root ViewController otherwise this ViewController will not be removed from Memory and cause Memory leaks.

edited Oct 15 '16 at 04:27

Crashalot

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answered Jul 21 '16 at 06:20

dan

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score 2 · Answer 18 · answered Aug 22 '17 at 07:12

2

In Swift 3.0

If you want to dismiss a presented view controller

self.dismiss(animated: true, completion: nil)

answered Aug 22 '17 at 07:12

Ramakrishna

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score 2 · Answer 19 · answered Jul 17 '18 at 09:46

2

In Swift 4.1 and Xcode 9.4.1

If you use pushViewController to present new view controller, use this

self.navigationController?.popViewController(animated: false)

answered Jul 17 '18 at 09:46

Naresh

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Another copy paste answer – J. Doe Nov 10 '18 at 14:21

score 2 · Answer 20 · answered Oct 14 '19 at 18:29

2

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

answered Oct 14 '19 at 18:29

eng mohamed emam

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How to dismiss ViewController in Swift?

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