3 Replies
      Latest reply on Dec 5, 2019 4:34 AM by Claude31
      narcisfromgirona Level 1 Level 1 (0 points)

        (macOS, Swift, storyboards)


        How can I have two windows open from the beginning? (without clicking any button)


        What I have tried:



        - Main.storyboard I have a Window Controller from the library

        - I have created a New document Cocoa Class SecondViewController

        - Main.storyboard > I select View Controller. In Identity Inspector I select Class SecondViewController



        - AppDelegate.swift inside applicationDidFinishLaunching:

                let storyboard = NSStoryboard(name: "Main", bundle: nil)

                let windowController = storyboard.instantiateController(withIdentifier: "MySecondController") as! NSWindowController



        - I think my problem is how to identify MySecondController in Main.storyboard

        I tried to select Window inside Window Controller. Then go to Identity Inspector and Identifier. But when I run, it does not appear. How should I identify that second window, where exactly should I put MySecondController name? Or perhaps I have not created well the second window?

        • Re: Two windows from the beginning
          Claude31 Level 8 Level 8 (7,245 points)

          Here is my setup, in such a case.


          The second window uses a windowController


          I have a global (in a singleton in fact) for the secondController:


                  secondController   = SecondController()     // In fact, initialized with some parameters


          class SecondController: NSWindowController

               // In its init, I call

                  self.init(windowNibName: NSNib.Name(rawValue: "TheNibName"))


          Now, to open the window, I just call

                  secondController.showWindow(self) // nil ou self



          Hope that helps. Tell me if you need more details.

            • Re: Two windows from the beginning
              narcisfromgirona Level 1 Level 1 (0 points)

              Thank you Claude31. Can you specify where do you put each part of the code, please? Remember that I use storyboard. (I am not familiar with the previous way)

                • Re: Two windows from the beginning
                  Claude31 Level 8 Level 8 (7,245 points)

                  It is even simpler with storyboard.


                  All you have to do is put this in applicationDidFinishLaunching.

                  Note: SecondWindowID is the stroryboard ID of the second windowController.


                      func applicationDidFinishLaunching(_ aNotification: Notification) {
                          // Insert code here to initialize your application
                          let storyboard = NSStoryboard(name: "Main", bundle: nil)
                          if let windowController = storyboard.instantiateController(withIdentifier: "SecondWindowID") as? NSWindowController {