Two windows from the beginning

Question

(macOS, Swift, storyboards)

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

What I have tried:

1- CREATE A NEW WINDOW

- 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

2- MAKE IT LAUNCH FROM THE BEGINNING

- AppDelegate.swift inside applicationDidFinishLaunching:

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

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

windowController.showWindow(self)

- 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?

AppKit

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Posted by

narcisfromgirona

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Answer 1

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 {
          windowController.showWindow(self)
        }
    }

Posted by

Claude31

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Answer 2

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.

Posted by

Claude31

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Answer 3

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)

Posted by

narcisfromgirona

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Answer 4

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 {
          windowController.showWindow(self)
        }
    }

Posted by

Claude31

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Two windows from the beginning

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