Programmatically go back to previous ViewController in Swift

Question

I send the user over to a page on a button click  This page is a UITableViewController    Now if the user taps on a cell  I would like to push him back to the previous page   I thought about something like self performSegue  back       but this seems to be a bad idea    What is the correct way to do it

User · Answer

I would like to suggest another approach to this problem. Instead of using the navigation controller to pop a view controller, use unwind segues. This solution has a few, but really important, advantages:

The origin controller can go back to any other destination controller (not just the previous one) without knowing anything about the destination.
Push and pop segues are defined in storyboard, so no navigation code in your view controllers.

You can find more details in Unwind Segues Step-by-Step. The how to is better explained in the former link, including how to send data back, but here I will make a brief explanation.

1) Go to the destination (not the origin) view controller and add an unwind segue:

    @IBAction func unwindToContact(_ unwindSegue: UIStoryboardSegue) {
        //let sourceViewController = unwindSegue.source
        // Use data from the view controller which initiated the unwind segue
    }

2) CTRL drag from the view controller itself to the exit icon in the origin view controller:

3) Select the unwind function you just created a few moments ago:

4) Select the unwind segue and give it a name:

5) Go to any place of the origin view controller and call the unwind segue:

performSegue(withIdentifier: "unwindToContact", sender: self)

I have found this approach payoffs a lot when your navigation starts to get complicated.

I hope this helps someone.

User · Answer

For questions regarding how to embed your viewController to a navigationController in the storyboard     Open your storyboard where your different viewController are located Tap the viewController you would like your navigation controller to start from On the top of Xcode  tap  Editor  -  Tap embed in -  Tap  Navigation Controller

User · Answer

Swift 3  I might be late in the answer but for swift 3 you can do it this way   override func viewDidLoad         super viewDidLoad        navigationItem leftBarButtonItem   UIBarButtonItem title    lt  Back   style   plain  target  self  action   selector backAction           Do any additional setup if required     func backAction          print  Back Button Clicked       dismiss animated  true  completion  nil

User · Answer

swift 5 and above  case 1   using with Navigation controller  self navigationController  popViewController animated  true    case 2   using with present view controller  self dismiss animated  true  completion  nil

User · Answer

I did it like this  func showAlert         let alert   UIAlertController title   Thanks    message   We ll get back to you as soon as posible    preferredStyle   alert       alert addAction UIAlertAction title   OK   style   default  handler    action in         self dismissView                self present alert  animated  true     func dismissView         navigationController  popViewController animated  true      dismiss animated  true  completion  nil

User · Answer

If Segue is Kind of  Show  or  Push  then You can invoke  popViewController animated  Bool   on Instance of UINavigationController  Or if  segue is kind of  present  then call  dismiss animated  Bool  completion      -  Void     with instance of UIViewController

User · Answer

for swift 3  you just need to write the following line of code       navigationController  popViewController animated  true

User · Answer

This one works for me  Swift UI   struct DetailView  View    Environment   presentationMode  var presentationMode  Binding lt PresentationMode gt     var body  some View         VStack           Text  This is the detail view           Button action              self presentationMode wrappedValue dismiss                          Text  Back

User · Answer

In the case where you presented a UIViewController from within a UIViewController i e        Main View Controller self present otherViewController  animated  true    Simply call the dismiss function      Other View Controller self dismiss animated  true

User · Answer

Swift 4  there s two ways to return back to the previous ViewController      First case   if you used   self navigationController  pushViewController yourViewController  animated  true   in this case you need to use self navigationController  popViewController animated  true  Second case   if you used   self present yourViewController  animated  true  completion  nil   in this case you need to use self dismiss animated  true  completion  nil        In the first case   be sure that you embedded your ViewController to a navigationController in your storyboard

User · Answer

I can redirect to root page by writing code in  viewDidDisappear  of navigated controller   override func viewDidDisappear   animated  Bool           self navigationController  popToRootViewController animated  true

User · Answer

Swift 4 0   Xcode 10 0  with a TabViewController as last view  If your last ViewController is embebed in a TabViewController the below code will send you to the root     navigationController  popToRootViewController animated  true  navigationController  popViewController animated  true    But If you really want to go back to the last view  That could be Tab1  Tab2 or Tab3 view   you have to write the below code       self navigationController  popViewController animated  true    This works for me  i was using a view after one of my TabView

User · Answer

Swift 3   If you want to go back to the previous view controller      navigationController  popViewController animated  true    If you want to go back to the root view controller      navigationController  popToRootViewController animated  true

User · Answer

Swift 3  Swift 4  if movetoroot        navigationController  popToRootViewController animated  true    else       navigationController  popViewController animated  true      navigationController is optional because there might not be one

User · Answer

Try this   for the previous view use this   navigationController  popViewController animated  true      pop to root use this code   navigationController  popToRootViewController animated  true

[ios] Programmatically go back to previous ViewController in Swift

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