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Reply to Adaptive Column Count for Condensed Grid Sections

Hi, You are correct that today only 2 columns are supported. Please file an enhancement request. You will receive updates via Feedback Assistant should the API behavior change in the future.

CarPlay

CarPlay Q&A

Jun ’26

Adaptive Column Count for Condensed Grid Sections

Condensed grid sections currently use a fixed two-column layout. On larger or higher-resolution head units, this underutilizes the available screen real estate. Is there support (or planned support) for adaptive breakpoints that expand to three or more columns on wider displays?

App & System Services CarPlay

346

Jun ’26

The requested app is not available or doesn't exist

Hey everyone, hoping someone here has seen this before because I'm losing my mind. I uploaded my first TestFlight build yesterday and added two internal testers. Both of them accept the invite fine, but the moment they tap Install in the TestFlight app, they get: ▎ The requested app is not available or does not exist My developer account is about a month old, but yesterday was the first time I actually pushed a build to App Store Connect. I've spent the last several hours triple-checking every setting and as far as I can tell, everything looks right: Free Apps Agreement is Active under Business Price Schedule is set to USD 0 (Free) App is available in 175 countries Bundle ID matches between my project and App Store Connect Build metadata shows App Uses Non-Exempt Encryption: No (and the same key is in my Info.plist) The build status in my Internal Testing group Team is Testing with the green checkmark Both testers were added under Users and Access first, then to the internal group One tester shows Accepted st

App Store Distribution & Marketing TestFlight

184

Jun ’26

[License Agreement] Can not accept license agreement

Hi, can someone help me, I can not find any button to accept this license agreement. I am Account Holder, and after clicking to account link, it redirects to my developer account. I accepted it in my developer account, but when I come back to Apple Store Connect, this agreement is still there, and no accept button for me in Action column.

Developer Tools & Services Apple Developer Program Developer Program

3.1k

Jun ’26

Reply to NavigationSplitView no longer pops back to the root view when selection = nil in iOS 26.4 (with a nested TabView)

I've encountered the same issue, though in a slightly different configuration than @jwcarr's case. In my setup, it's a 3-column NavigationSplitView (sidebar + content + detail) where the content column contains a TabView with List inside (whereas in @jwcarr's 2-column setup, the TabView/List lives in the sidebar column). When I programmatically set the List selection to nil from the detail column (e.g., after a delete operation), the detail column does not pop back to the content column on iPhone (compact size class). The detail column's content correctly switches to the placeholder view because my state is properly cleared, but the column itself stays on screen. I've confirmed the version-specific behavior on simulators: iOS 26.2: works correctly (pops as expected) iOS 26.3.1: works correctly iOS 26.4 / 26.4.1: does not pop iOS 26.5: works correctly I also verified that removing the TabView and using a plain List in the content

UI Frameworks SwiftUI

Jun ’26

Reply to A few issues with the iPhone Photos app

Thanks for the positive observation about the Photos app's grid zoom — it is genuinely smooth, and wanting to replicate that in your own app is a reasonable aspiration. I spent some cycles putting together the following summary of APIs you may wish to explore pursuing this goal. A framing note before getting to the substance: I can't share the specifics of how Apple's Photos app is implemented internally, since that's not something DTS can detail. What I can do is point you to the public APIs and techniques that let you build similar grid-zoom behavior in your own app. The good news is that the public surface includes a class for the interpolated-zoom effect you're after. The SwiftUI path For a photo-library-backed grid with smooth pinch-to-zoom in SwiftUI, the building blocks are: LazyVGrid for the grid container (iOS 14 or later). MagnifyGesture (iOS 17 or later) for pinch input. MagnifyGesture replaced the now-deprecated MagnificationGesture; the gesture's value gives you the magnification factor to drive

App & System Services General

May ’26

Reply to After binding to NSBrowser indexPaths the browser assumes I'm using NSBrowserCell and calls unimplemented methods on my NSCell subclass

Thanks a lot for the reply! I had a bug I recently introduced in my app where I missed syncing model/UI with a selection change. I was already using the target-action but my app is pretty large and also programmatically changes the selection in many different places. As far as a I know there is no way to pick up all selection changes globally (other than the binding) so I decided to try the binding but that didn't work out as described in the original post. So instead of the binding to resolve I'm now overriding four different set methods (in addition to responding in the target-action). - (void)selectRow:(NSInteger)row inColumn:(NSInteger)column; - (void)selectRowIndexes:(NSIndexSet *)indexes inColumn:(NSInteger)column -(void)setSelectionIndexPath:(NSIndexPath *)selectionIndexPath -(void)setSelectionIndexPaths:(NSArray *)selectionIndexPaths Maybe overriding only two is required, not sure but if so that is undocumented and subject to change anyway. So a binding or a notification like NSBrows

UI Frameworks AppKit

May ’26

Reply to PDFView left-anchors to window edge instead of centering between sidebar and inspector (macOS Tahoe)

Thanks for the clear writeup and screenshots — they made this easy to reproduce. With a 3-column NSSplitViewController + PDFView in macOS 26, I confirmed exactly what you're seeing. With detailItem.automaticallyAdjustsSafeAreaInsets = true, the detail view's frame extends under the panels and safeAreaInsets reports correct values — but PDFView's autoScales math positions and scales the page based on the full bounds, ignoring the safe-area region. The page anchors at the left of the bounds, partly under the sidebar, regardless of where the visible gap is. I tested the workarounds that look like they should help, and none of them work: Setting pdfView.additionalSafeAreaInsets to mirror the safe area — PDFView's scaling math doesn't read it. Setting contentInsets on the internal scroll view (pdfView.documentView?.enclosingScrollView) with automaticallyAdjustsContentInsets = false — works for one layout pass, then autoScales recomputes against the full bounds on resize and reverts. Disabling autoScales a

UI Frameworks AppKit

May ’26

PDFView left-anchors to window edge instead of centering between sidebar and inspector (macOS Tahoe)

I'm building a document viewer on macOS Tahoe with a 3-column NSSplitViewController (sidebar | detail | inspector), trying to replicate how Preview displays PDFs with the page centered in the visible gap between the panels, with content bleeding under them when panning or zooming. I'm using the approach from Build an AppKit app with the new design (WWDC25): detailItem.automaticallyAdjustsSafeAreaInsets = true safeAreaInsets reports the correct values (e.g. left: 208, right: 240), and the frame does extend under both panels. But PDFView with autoScales = true anchors the page to the left edge of the window instead of centering it in the visible gap between the sidebar and inspector. I can get the page to center correctly by constraining PDFView to view.safeAreaLayoutGuide, but then content no longer extends under the panels when panning or zooming, which defeats the whole purpose. What's the correct way to center PDFView content within the visible gap while keeping the frame full-width so content blee

UI Frameworks AppKit

302

May ’26

Device stuck in processing

I have had this notice for a while: Registration is being processed for these devices. They may become available for development and ad hoc distribution in 24 to 72 hours. Changes to device availability will appear in the Status column. The status for my new iPhone has been stuck in this Processing state. See image:

Developer Tools & Services Apple Developer Program Developer Program

24k

May ’26

Can Core Data avoid index rebuild when adding a new attribute during lightweight migration?

I’m investigating Core Data lightweight migration behavior with SQLite and ran into a performance issue. Scenario: Model V1: EntityA has one fetchIndex Model V2: EntityA adds a new optional attribute timestamp (Integer 64), with no changes to existing attributes or fetchIndex definitions From a SQLite perspective, this change should be handled by a simple: ALTER TABLE ZENTITYA ADD COLUMN ZTIMESTAMP INTEGER But I observe that Core Data rebuilds the existing index, which becomes a significant performance issue for large databases. CoreData: sql: DROP INDEX IF EXISTS Z_EntityA_id CoreData: sql: ALTER TABLE ZENTITYA ADD COLUMN ZTIMESTAMP INTEGER CoreData: sql: CREATE INDEX IF NOT EXISTS Z_EntityA_byID ON ZENTITYA Question: Is there any way to avoid or bypass index rebuilding for this kind of schema changes?

App & System Services iCloud Core Data

553

May ’26

Reply to MSAL login with Developer ID signed app

DevForums is primarily focused on Apple APIs and tools, so I can’t offer specific help with this issue. It’s possible that another third-party developer has seen this before and can help you. If not, I recommend that you seek help via the support channel for the library you’re using. However, I can address this: [quote='826107021, szigetics_nt, /thread/826107, /profile/szigetics_nt'] The problem seems to be that such keychain access groups access cannot be configured for Developer ID signed applications. [/quote] There’s a bunch to unpack here. First up, macOS has multiple keychain implementations. For the details, see TN3137 On Mac keychain APIs and implementations. Keychain access groups imply that you’re using the data protection keychain. Second, the data protection keychain is available to directly distributed programs that use Developer ID signing. See the intersection of the Keychain Sharing row and the Developer ID column in the table in Developer Account Help > Reference > Supported ca

Developer Tools & Services General

May ’26

Reply to How do I make an editable NSTextField wrap inside an NSTableView cell?

This is a tricky aspect of NSTextField in table views. usesAutomaticRowHeights relies on the text field's intrinsicContentSize to determine row height. When isEditable is true, NSTextField internally changes its sizing behavior and stops reporting a multi-line intrinsic height, so the row collapses to a single line. Your observation that the text still wraps internally but the cell height doesn't update is exactly right. The fix is to stop using usesAutomaticRowHeights for editable text fields and calculate row heights manually using tableView(_:heightOfRow:). Use a separate non-editable text field as a measurement prototype — since non-editable text fields calculate wrapping height correctly — and call noteHeightOfRows(withIndexesChanged:) when the text changes so the row resizes as someone types. Here is a working example: // Prototype field for height measurement (non-editable, so wrapping height is correct) let measureField: NSTextField = { let tf = NSTextField(wrappingLabelWithString: ) tf.isEditable = f

UI Frameworks AppKit

May ’26

Reply to Why I can't test the app on my own device even if I signed it with a valid development certificate

Thanks for the post, I would recommend to put the output of the console errors on the body of the message as well will easier to see and warning and errors to that point The error I see at the last screen may happen when Xcode attempts to install your app onto a physical device, but the app or probably one of its embedded 3rd party frameworks lacks a valid code signature? If you haven't set up code signing yet, the easiest way to fix this is to let Xcode handle it. Look first at the app team dropdown and make sure everything is valid. Go to the Signing & Capabilities tab and check the box for Automatically manage signing. In the team dropdown, select your Apple Developer account/team. If your main app is signed but a third-party library or framework is not, Xcode will throw this exact error. In General, scroll down to Frameworks, Libraries, and Embedded Content. Look at the Embed column for your frameworks. If you have dynamic frameworks like .framework or .xcframework files that are not Apple, m

Developer Tools & Services Xcode

May ’26

Reply to Is it possible to locally test a Network Extension without a paid development account?

[quote='825136021, KirkBeamedUp, /thread/825136, /profile/KirkBeamedUp'] Can this be done … ? [/quote] Probably, but whether it’s worth it depends on how much you value your time. First, some background. Most NE entitlements are available to all developers who are members of a paid team. And you’re right that there’s a bunch of backstory to this, but the info in my Network Extension Framework Entitlements post is up to date. Also, Developer Account Help > Reference > Supported capabilities (macOS) is a good page to bookmark, because it lists a bunch of common capabilities and their team requirements. The Apple Developer column in that table is what you get with free provisioning, also known as Personal Team in Xcode. Now, for iOS and its child platforms that’s the end of the story. For macOS you have options. You can disable SIP and then disable bits of the trusted execution system and thereby claim any entitlements you want. For an example of this, see this post. IMPORTANT This is not a suppor

App & System Services Networking

May ’26

Reply to Adaptive Column Count for Condensed Grid Sections

Hi, You are correct that today only 2 columns are supported. Please file an enhancement request. You will receive updates via Feedback Assistant should the API behavior change in the future.

CarPlay

CarPlay Q&A