On a view controller shown as part of a UINavigationController's stack, how do I tell if the Back button was pressed? The previously suggested answer from ages ago, to check isBeingDismissed(), seems to always return a false value.

When I try to re-open the storyboard I was just editing in the current production version of Xcode it says"The document Main.storyboard could not be opened. The operation couldn't be completed. (com.apple.InterfaceBuilder error -1)"What in the world do I do to fix that? I *really* don't want to go back to my last git commit for that file because there have been quite extensive changes with pretty complex autolayout settings.

Apple's docs show using NSString.localizedUserNotificationString for local push notifications in Swift. Why not just use the normal NSLocalizedString() methods? Is there something special about the former method?

I'm trying to have a navigation link that is triggered programatically. If I use the following code, on iOS, then the second NavigationLink is not put into the UI, as expected. On watchOS, however, there's a visible button with no text. How can I accomplish this on watchOS? var body: some View {   NavigationView {     VStack {       NavigationLink("No login required", destination: UnprotectedView())       NavigationLink(destination: ProtectedView(), isActive: $isActive) {         EmptyView()       }       Button("Login required", action: pushIfAuthenticated)     }     .navigationBarTitle("Choose")   } }

When my SwiftUI based watch app responds to an WKSnapshotRefreshBackgroundTask, how do I change the navigation stack? Before using SwiftUI we'd just do this: if let root = WKExtension().shared.rootInterfaceController { 		root.pushController(withName: "Controller1", context: nil) 		root.pushController(withName: "Controller2", context: nil) } And now I'd have the screen I wanted. Not sure how to accomplish that same thing with SwiftUI

In my watchOS extension, I'm using the WKUserNotificationHostingController. If I override isInteractive and return true, how do I allow for opening the app? Essentially I want to know how to make the app open when tapping on specific elements of the custom View which is displayed. In previous versions I'd just call the performNotificationDefaultAction method on the WKUserNotificationInterfaceController.

I'm trying to debug some connectivity issues on real devices and can't figure out how to do so. If I plug in the phone and then run that scheme it starts up. If I then switch the scheme to the watch and run, the phone debugging stops and I just have the watch. How do I get both at once so I can see messages from each device?

I'm trying to understand the background URL download from the "Keep Your Complications Up To Date" video. I'm confused as to what the refresh method does. In his example, all it does is stores a completion handler. If schedule(first:) is what actually schedules/runs the file download, why not just pass/store the completion handler there? Seems like my applicationDidFinishLaunching method would call schedule(first: true)?

On my watch only app I added capabilities for Push Notifications and Background remote notifications. Then, in the App I created an instance of my provider. I see the initializer being called, but the delegate methods are never called, so I have no device token. What am I missing? import Foundation import PushKit import ClockKit final class PushNotificationProvider: NSObject {   let registry = PKPushRegistry(queue: .main)   override init() {     super.init()     registry.delegate = self     registry.desiredPushTypes = [.complication]   } } extension PushNotificationProvider: PKPushRegistryDelegate {   func pushRegistry(_ registry: PKPushRegistry, didUpdate pushCredentials: PKPushCredentials, for type: PKPushType) {     let token = pushCredentials.token.reduce("") { $0 + String(format: "%02x", $1) }     print(token)   }   func pushRegistry(_ registry: PKPushRegistry, didReceiveIncomingPushWith payload: PKPushPayload, for type: PKPushType) async {     // Called on the main queue based on the PKPushRegistry queue parameter.     let server = CLKComplicationServer.sharedInstance()     server.activeComplications?.forEach {       server.reloadTimeline(for: $0)     }   } }

In the WWDC2020 "Keep your complications up to date" session, Mike shows that you have to create an App ID that ends with ".watchkitapp.complication" in order to support PushKit. Any time I try to add ".complication" to the end of my App ID, it gives an error: An App ID with Identifier 'com.x.y.watchkitapp.complication' is not available. Please enter a different string.

My standalone watchOS app is trying to read from the calendar via EventKit. It seems to only see local calendars though, not any of my iCloud calendars. Do I have to do something special to be able to view the iCloud based calendars?

When sharing a watch face that includes complications, the CLKComplicationDataSource method gets called. When switching to WidgetKit, is there an equivalent method that gets called?

I see that if I go to the CloudKit web services pages that they're in an archived area. I've got (really old) PHP code that processes data and then uploads it to a public container. Should I be changing to something different?

I'm trying to write a method to take a string and break it up into an array where each element of the array is the next 10 characters. So a string that's 32 characters long would end up with 3 array elements containing the first 30 characters, and then the 4th array element would have the last 2 characters. I was trying to use substringWithRange for this but as soon as I advance past the str.endIndex it throws an exception, and I can't figure out how to work around that. I know it's just a silly syntax thing, but I'm stuck.

Everything I see from googling says that time travel is gone now on the Apple Watch. However, if I create a brand new watchOS project with complications, there's still a getTimelineEntries(for:after:limit:withHandler) method. So if it exists, how do I use it now, since the setting seems to be gone from the watch app, and if it doesn't, why does the default template still include it?