(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 SecondViewController2- 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.storyboardI 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?

(macOS, Swift, storyboards)Can I change a label on hover?WHAT I HAVE TRIED1- I have put a button in storyboard and make it transparent. It works if I click, but I could nof find how to if hover@IBOutlet weak var label1: NSTextField!@IBAction func button1(_ sender: NSButton) { label1.textColor = NSColor.gray}2- I have put a NSView and drag a NSClickGestureRecognizer to it. Again, it works on click but I cannot find a way to do it with hover@IBOutlet weak var label2: NSTextField!@IBAction func gestureRecognizer1(_ sender: NSClickGestureRecognizer) { label2.textColor = NSColor.gray}I could find something in Apple documentation. But it talks about UIButton. I cannot find a way to adapt to my case:https://developer.apple.com/documentation/uikit/uihovergesturerecognizer

Swift, Storyboards, Core DataI have this code that makes an insert with Core Data. How would it be read, update and delete in this specific case?I have seen a lot of tutorials and each one makes things a bit different. I could not adapt to this case.(I have already created the data model with the entity Users and the Attrituves name and password. I also have linked the buttons read, update and delete. I am looking for the most bàsic, without tables... Just like the insert I have here. Thank you!)import UIKit import CoreData class ViewController: UIViewController { @IBOutlet weak var name: UITextField! @IBOutlet weak var password: UITextField! lazy var context : NSManagedObjectContext = { let appDelegate = UIApplication.shared.delegate as! AppDelegate return appDelegate.persistentContainer.viewContext }() // INSERT @IBAction func button(_ sender: UIButton) { guard name.hasText && password.hasText else { return } let user = Users(context: context) user.name = self.name.text! user.password = self.password.text! do { try context.save() print ("saved") } catch { print(error) } } // READ @IBAction func readButton(_ sender: UIButton) { } // UPDATE @IBAction func updateButton(_ sender: UIButton) { } // DELETE @IBAction func deleteButton(_ sender: UIButton) { } }

What is the right way to insert or write today's date in Core Data?in .xcdatamodeld I have the Entity Contingut and the Attributes:dateCreated of Type Datetext1 of Type String func today1() { let date = Date() let calendar = Calendar.current let day = calendar.component(.day, from: date) let month = calendar.component(.month, from: date) let year = calendar.component(.year, from: date) let avui = "\(year)-\(month)-\(day)" print (avui) } // CREATE @IBAction func createData(_ sender: UIButton) { guard let appDelegate = UIApplication.shared.delegate as? AppDelegate else { return } let managedContext = appDelegate.persistentContainer.viewContext let contingutEntity = NSEntityDescription.entity(forEntityName: "Contingut", in: managedContext)! let contingut = NSManagedObject(entity: contingutEntity, insertInto: managedContext) contingut.setValue(today1(), forKey: "dateCreated") contingut.setValue("some text", forKey: "text1") do { try managedContext.save() } catch let error as NSError { print("Could not save. \(error), \(error.userInfo)") } }When I create a new text1, I want to register the day. What is the right way to do that?

I update one field in Core Data. This code works well:func updateData(){ guard let appDelegate = UIApplication.shared.delegate as? AppDelegate else { return } let managedContext = appDelegate.persistentContainer.viewContext let fetchRequest:NSFetchRequest = NSFetchRequest.init(entityName: "User") fetchRequest.predicate = NSPredicate(format: "username = %@", "John") do { let test = try managedContext.fetch(fetchRequest) let objectUpdate = test[0] as! NSManagedObject objectUpdate.setValue("John2", forKey: "username") objectUpdate.setValue("John2@example.com", forKey: "email") objectUpdate.setValue("newPassword", forKey: "password") do { try managedContext.save() } catch { print(error) } } catch { print(error) } }I would like to add a way to check if what I try to update exists. In that specific case, I want to check first if I have in the database the username John

macOS, Swift, StoryboardsI have two windows. I have opened the second window with a Storyboard Segue Kind Sheet. I want to close that window with a fade out. I put that in SecondViewController.swift. This works well to make the fade out. But, if I understand, the window is not visible but it is still there and I cannot click any button behind. How to solve that?(If I use dismiss(self) I close the window but without the fade out. I want fade out, and then close) @IBAction func close1(_ sender: NSButton) { self.view.window?.animationBehavior = .none self.view.window?.makeKeyAndOrderFront(nil) NSAnimationContext.runAnimationGroup({ (context) -> Void in context.duration = 2 self.view.window?.animator().alphaValue = 0 }, completionHandler: nil) // dismiss(self) }

macOS, Storyboards, Swift.I have a button to perform a segue to a second page. I can make a control drag from the button to the second page. In Attributes, I have selected a Kind Sheet. Is it possible to open it with a fade in?To make things easy let's say that:The first window is ViewController.swiftThe second window is SecondViewControllerI have button1 in ViewController.swift with segue1 that goes to SecondViewController.swift

macOS, Swift, storyboardsI have a label with minutes and seconds of a countdown. 00:00I want it horizontally centered in the container and at a certain distance from the top. When I put those constraints, all the label moves when there is a new second as it tries to center: 00:01, 00:02... it creates and strange effect. I suppose that the correct behaviour would be to have the two points fixed in the center. How to use constraints in this case?

Is it possible to have a small WebView? for instance 200 x 250I have a Webkit View from the LibraryIn the ViewController: import Cocoa import WebKit class ViewController: NSViewController { @IBOutlet weak var webView1: WKWebView! override func viewDidLoad() { super.viewDidLoad() let url = URL(string: "https://www.apple.com") let request = URLRequest(url:url!) webView1.load(request) }I can see the content of the web site but it is cut. I do not need a full web browser only an image representation of the site.

macOS, SwiftIs it possible to remove the scroll in WebKit View? (or make it not visible)I have a WebKit View from library and I have made the connection to the ViewController.swift:@IBOutlet weak var webView1: WKWebView!

When I Run a project I see nothing, the window does not appear. I see no error. I see the "Build succeed" and the general menu of the bar, but no window.Even when I create a new project, with no code, sometimes I see the window, sometimes I do not. When I see the window, if I add some code, just a few lines, then run, and I cannot see the window anymore. I tried many things and I do not see a pattern, it seems random. I tried to give a different name, use the shortcut, use the button, I am sure that is not hidden behind or something, I compare a project that works and one that does not and I see no difference ...I can do no work and I have no idea what's going on. Any suggestion?macOS Catalina 10.15.5Xcode 11.5Swift

macOS, Swift, User Interface: Storyboard I have two pages: ViewController and Preferences. I have a button on the Preferences window and I want to trigger an action on the ViewController window. How can I do that? The button is in Preferences window and the action should be in the ViewController window. (In storyboard, If I open the Assistant Editor I get Preferences.swift. I cannot make the regular connection with the control drag)

macOS, Swift, storyboards How can I make the window active in all spaces? I could find how to do that with storyboard: Select the window > Attributes > Spaces > Can join all spaces. How can I do the same with code (activate and de-activate)

I have an NSView and I want it to be half of the window. This is what I have tried: In storyboard I dragged a Custom View I give it a Constraint of 0 in Top, Left and Bottom How can I make it half of the screen even when the user changes the size of the screen?  @IBOutlet weak var nsView1: NSView! nsView1.wantsLayer = true nsView1.layer?.backgroundColor = NSColor.red.cgColor

How to make a link when I click to a button in macOS? This works well in iOS. How to do the same with macOS:     @IBAction func button1(_ sender: UIButton) {         if let url = URL(string: "some link") {             UIApplication.shared.open(url)         }     }