With iPadOS26, if I create a UITabBar, and use that to switch between views, the selected state never updates. I created this simple UIViewController to demonstrate the issue: class SimpleTabBarController: UIViewController, UITabBarDelegate { let tabBar = UITabBar() let redItem = UITabBarItem(title: "Red", image: nil, tag: 0) let blueItem = UITabBarItem(title: "Blue", image: nil, tag: 1) override func viewDidLoad() { super.viewDidLoad() view.backgroundColor = .white tabBar.items = [redItem, blueItem] tabBar.selectedItem = redItem tabBar.delegate = self tabBar.translatesAutoresizingMaskIntoConstraints = false view.addSubview(tabBar) NSLayoutConstraint.activate([ tabBar.leadingAnchor.constraint(equalTo: view.leadingAnchor), tabBar.trailingAnchor.constraint(equalTo: view.trailingAnchor), tabBar.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor) ]) updateBackground(for: redItem) } func tabBar(_ tabBar: UITabBar, didSelect item: UITabBarItem) { updateBackground(for: item) } private func updateBackground(for item: UITabBarItem) { switch item.tag { case 0: view.backgroundColor = .systemRed case 1: view.backgroundColor = .systemBlue default: view.backgroundColor = .white } } } The tabBar didSelect item method is called, and the background color gets updated as expected, but the selected state of the UITabBar stays the same. I files a feedback for a related issue: FB17841678

Hi, I have an app that uses Core Data to store user information and display it in various views. I want to know if it's possible to easily integrate this setup with FoundationModels to make it easier for the user to query and manipulate the information, and if so, how would I go about it? Can the model be pointed to the database schema file and the SQLite file sitting in the user's app group container to parse out the information needed? And/or should the NSManagedObjects be made @Generable for better output? Any guidance about this would be useful.

Hi, I am testing a situation with shared CKRecords where the data in the CKRecord syncs fine, but the creatorUserRecordID.recordName and lastModifiedUserRecordID.recordName shows "defaultOwner" (which maps to the CKCurrentUserDefaultName constant) even though I made sure I edit the CKRecord value from a different iCloud account. In fact, on the CloudKit dashboard, it shows the correct user recordIDs in the metadata for the 'Created' and 'Modified' fields, but not in the CKRecord. I am mostly testing this on the iPhone simulator with the debugger attached. Is that a possible reason for this, or is there some other reason the lastModifiedUserRecordID is showing the value for 'CKCurrentUserDefaultName'? It would be pretty difficult to build in functionality to look up changes by a different userID if this is the case.

I'm using the #Playground macro in Xcode 26.0, running on macOS 26.0. I can get the basics working, but I don't understand how it hooks into the rest of the app, like the App Delete or the Core Data stack. Do we have to create a new Core Data stack, like for SwiftUI Previews, or can it hook into the stack from the main app (if so, how)?

In my UIKit app, in my view controller, I have a toolbar at the bottom of the screen and a UITextView, and I need to get the size of the toolbar to calculate the correct keyboard intersection, and change my text view layout so that the text doesn't get obscured when the keyboard is shown on screen. It's been working fine till now, but with iOS26, I am running into an issue, because the toolbar size is completely different. For this code: NSInteger offset = (self.navigationController.isToolbarHidden == NO)? (self.navigationController.toolbar.frame.size.height): 0; iOS18 returns '49' iOS26 returns ''812'. This obviously throws off the calculations for keyboard avoidance. Is there a way to overcome this, other than ignoring or hard-coding toolbar height?

I have a couple of questions about NSSharingService, specifically with NSSharingServiceNameComposeEmail:1) I use [NSSharingService sharingServiceNamed:NSSharingServiceNameComposeMessage], then set the correct parameters and call `performWithItems` on it. This works fine if the Mail app is configured to be the "Default email reader" in Mail.app's Preferences. If I change this to some of the other email clients I have, this doesn't work anymore. I have tried MS Outlook, Airmail and Unibox apps, and this doesn't work in any of them. Is this intentional? Does the sharing service with NSSharingServiceNameComposeMessage only work for Mail.app?2) If that isn't the case, and other apps can be responsible for composing emails as well, what does an app have to do to handle this? If I want to set myself as an email client app, and let others call ComposeMessage, what API should I implement? If anyone has an idea on how to do this, would really appreciate the help.Thanks.

Hi,I'm starting to work on adding a auto-renewable subscription in my app to unlock certain features. I understand the StoreKit and iTC details, but one thing that's not clear to me is *why* we need to do receipt validation for in-app purchases? There seems to be a lot of empasis on doing this, and it gets complicated because you need to either import different libraries to do this client-side (which isn't the recommended option) or do it server-side, which adds a lot of overhead. In my case, I don't have any server running at all, and my whole app relies on CloudKit instead. So I'm wondering why it's so essential in case of IAP. a) if it's for preventing piracy, shouldn't that apply to paid-apps as well? But no one talks about reciept validation for paid-up-front apps.b) when StoreKit's paymentQueue "updatedTransactions" delegate tells us that someone has purchased an IAP, is that something that can be spoofed? I would imagine not, and even so, this would only be possible with jailbroken devices. Is that what people are worried about? How much of a problem is this in the real world? c) is there certain information in the reciept that is essential for subscriptions to work correctly? In my mind, the simplest implementation would be this: display the IAP products, implement the storekit delegate to see when the user purchased the product and mark that user's CloudKit "User" record with the type and date of subscription (this can also be used to restore the IAP on another device) and unlock the features. When the next billing cycle comes, I can wait for StoreKit to tell me whether the user cancelled or continued the subscription, and lock/unlock the feature accordingly. I don't see the necessity of receipt validation in this case. But I might be wrong and misguided about my assumptions. Would love some comments about this.

HiI'm trying to use Xcode's "Build With Timing Summary" feature. It kicks off a build, and I can see the new build in the Build Reports navigator, but when I look through All Messages in the build results, there is "Timing Summary" information. It just says "Build Success - <date> - 75 seconds", but there isn't a breakdown of the timing results.My target builds an iOS app with many extensions, so I can't post the whole logs here. But is there any reason why I can't find the timing results? I do have that older Xcode flag 'ShowBuildOperationDuration' which still works, but only gives the same overall build summary time, not a breakdown.

I am having a hard time uploading data to my CloudKit container in a series of operations. I have an 'uploader' function in my app that can populate the CloudKit private database with a lot of user data. I batch the records into multiple CKModifyRecordsOperations (with 300 records in each operation as a maximum), before I upload them. When I do this with a lot of data (less than 50MB even), I get CKErrorRequestRateLimited errors for some of the operations, with a value for CKErrorRetryAfterKey specified in the CKError. I respond by creating new operations for the same records, delaying them by the specified CKErrorRetryAfterKey key, and then retrying the operations. But those operations end up getting more CKErrorRequestRateLimited errors again. Usually one or two operations go through at a time, and all others have the same error, and then I have to retry again after 90 seconds or whatever the retry-key says.  Doing all of this can take dozens of minutes to do a simple upload. I checked the CloudKit dashboard, and for the container's 'developer' telemetry section, the 'server latency' seems very very high (over 100,000 for 95% percentile). It also suggests the 'average request size' is 150KB on average across the last few days as I've been testing this, which doesn't seem like a lot. I've tried throttling the requests so only 20 modify operations are sent at a time, but it doesn't seem to help. I'm not sure what else I can try to improve this. I have 'query' indexes for 'recordName' field for each recordType, and 'query, searchable, sortable' on some of the custom fields on the recordTypes (though not all). The CKModifyRecordsOperations' configurations have 'qualityOfService' set to 'userInitiated'. Is there anything else I can try to improve the upload speeds? Or is it out of my control?

Hi, When I login to App Store connect, I get a banner message saying "Review the updated Paid Applications Schedule": In order to update your existing apps, create new in-app purchases, and submit new apps to the App Store, the user with the Legal role (Account Holder) must review and accept the Paid Applications Schedule (Schedule 2 to the Apple Developer Program License Agreement) in the Agreements, Tax, and Banking module. When I click the link, select "View and Agree Terms", and select the checkbox and select the "Agree" button to accept the terms, I get an error message: We are currently unable to process your request. Please try again later. This has been happening for the past 2 days now. What should I try to do to overcome this problem? I'll file a bug with Apple, but it takes them many days to respond to these issues usually.

I'm confused about this ... the MailKit headers files seem to suggest that MailKit APIs are available for iOS16 now. But I haven't seen any documentation mention it, and you can't create a MailKit extension for iOS (using Xcode 14) like you can with macOS. So is it available to use in iOS or not? If so, how do we create an iOS target for the MailKit extension?

Hi, I have a paid macOS app available in the Mac App Store for the past few years, and I'm looking into converting it into a freemium app. I wanted to add a check to see if the app was purchased legitimately or not, since I know there's a lot of pirated copies available on the internet. I just did some basic analytics with the app already on the store, the app receipt validation fails because there's no file found at the receipt URL location. I'm just doing this basic check and it fails for a lot of the cases ....     NSURL *receiptURL = [NSBundle mainBundle].appStoreReceiptURL;     BOOL exists = [[NSFileManager defaultManager] fileExistsAtPath:receiptURL.path isDirectory:nil]; Does this signify that the user has a non-AppStore copy of the app? Or could the receipt be missing for other legitimate reasons? Do I have to make a call to refresh the receipt to confirm this (as I would on iOS)? Again, this is for an existing app on the Mac App Store, not testing for sandbox users. Thanks.

Hi, My iOS app includes 4 dependencies added through SPM, and a xcframework file from an external source. When I build the iOS app for the visionOS simulator, it works fine, and it runs in the compatibility mode. When I try to build for the new visionOS SDK, I get build errors related to these external dependencies, like "When building for visionOS Simulator, no library for this platform was found ..." How do I remove these dependencies for just the visionOS SDK? Any help would be appreciated. Thanks.

Hi, I am trying to migrate my custom intents to App Intents, and was running into some issues. My current intentdefinitions file and all intent handling code are in a framework that is shared with my app target. I went through the migration assistant and added the App Intents codes directly to my main app target. When I run a shortcut with the App Intent, it doesn't work ... I get some messages in the console that say: Could not find an intent with identifier MyCustomAddContactIntent, mangledTypeName: Optional("") I guess the old custom intents and new App Intents should both live in the same package to see each other. In this case, I'm not sure if all the existing custom intents file and all the intents handler logic should be moved into the main app bundle (and removed from framework), or should I add the new App Intents handlers into the framework (in addition to the main app)? Also, will the custom framework even be needed or run in iOS16+? Thanks.

Hi, I am looking at the ContactAccessButton and contactAccessPicker functionality that's new in iOS18. I had a couple of questions about this: is this available through UIKit as well as SwiftUI, or is it a SwiftUI-only feature? is it going to be available on the Mac as well as iOS? Thanks.