iPadOS is the operating system for iPad.

Posts under iPadOS tag

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USDZ files with camera can't be opened on IOS 18.2/iPadOS 18.2 correctly.
Hi experts, When I open a USDZ file which contains perspective cameras by "Files" app in IOS 18.2/iPadOS 18.2, I can't see anything. And when I open the USDZ file in IOS 18.1/iPadOS 18.1, it works well. On the other hand, when I open a USDZ file which contains orthographic cameras in IOS 18.1 or IOS 18.2, the scene is stuck. Could you help to solve these issues please? Thanks.
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Dec ’24
App Directories And Data
Hello everyone, I hope you’ll all bear with me as I get up to speed. My background is in Unix, procedural languages, mission critical databases and enterprise applications. I’ve just started heading a team with an iOS app used in healthcare that contains confidential patient information (PHI) that's governed by HIPAA and FDA cybersecurity, etc. It seems there’s some contention in the team over whether the app, SQLite db, and medical images belong in the Documents or an Application Support directory in the Library. From everything I’ve read, it seems that Apple’s intent is Library/Application Support. Two questions: Which is the correct location? And hopefully, a few compelling justifications. On one of our iPads, the app stopped displaying what was two years of data in SQLite. I haven’t yet tested for index corruption, however one of the programmers believes this resulted from an iOS update that needed space and cleared data in the cache (but that makes no sense to myself). Feedback highly appreciated. Many thanks, David Why, because somebody has to
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Dec ’24
iOS/iPadOS Updates via MDM fail if the device has OS Deferral settings applied
We have noticed that if we apply forceDelayedSoftwareUpdates in Restrictions profile, it causes ScheduleOSUpdates to fail or go into an invalid state. For example: On my iOS device, we have set the forceDelayedSoftwareUpdates to 90 days which removed the latest iOS update iOS 18.2 from the Software Updates section on the device. Post this, if I schedule an update for iOS 18.2 using ScheduleOSUpdateCommand, it fails to download. If I schedule the same without forceDelayedSoftwareUpdates, the update works as expected. Please help what could be the reason for this behavior as forceDelayedSoftwareUpdates should not block ScheduleOSUpdates.
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SwiftUI Popover Crash During Resizing in Stage Manager
SwiftUI Popover Crash on iPad During Resizing in Stage Manager with Exception. *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Trying to layout popover in the delegate callback popoverPresentationController:willRepositionPopoverToRect:inView: will lead to recursion. Do not force the popover's container view or an ancestor to layout in this callback.' (Occurred from iPadOS 18.1) struct ContentView: View { @State var showPopover: Bool = false var body: some View { VStack { Text("Hello, world!") Button(action: { showPopover = true }, label: { Text("Open Popover") }) } .padding() .popover(isPresented: $showPopover, attachmentAnchor: .point(.trailing), content: { VStack { Text("Popover Content") } }) } }
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Safari goes into an infinite loading loop if it cannot load the webpage
I have a Safari extension which allows the user to load their own homepage upon opening a new tab. The extension works by retrieving the homepage URL from UserDefaults and then redirecting to it using window.location.replace. In iOS 18, if the homepage is unable to be loaded due to, for example the user having no internet connection, Safari will go into an rapid loading loop, which eventually stops after a while. This is unlike iOS 17, where trying to reproduce the same scenario will end up with a Safari error page, which should be the expected behaviour. In short, instead of Safari going into an infinite loading loop, it should display a Safari error page like iOS 17 does. As this issue is only happening on iOS 18, I am almost certain it's an iOS bug and would appreciate if this can be fixed as soon as possible. I have created a Feedback Assistant report with ID FB15853821, which contains a sysdiagnose file from my iPhone 16 Pro, as well as two videos, one from my iPhone 16 Pro with iOS 18.2 beta 3 and the other video showing a comparison between iOS 18 and 17. Both videos first show the extension functioning correctly with an active internet connection, but when I disable my internet, the iOS 18 Safari goes into an infinite loop. Here are the steps to reproduce the issue: Download the Homepage for Safari app from the App Store: https://apps.apple.com/gb/app/homepage-for-safari/id6481118559 Enter any valid homepage URL, such as https://apple.com and tap Save Go to Settings -> Apps -> Safari -> Extensions -> Homepage and enable the extension Make sure Open New Tabs is set to “Homepage” Turn off both WiFi and cellular data and attempt to open a new tab in Safari Please note that this also happens with iOS 18.2 beta 4.
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Nov ’24
Starting iOS & iPadOS App Development: Seeking Guidance and Learning Path
I am basically a front-end engineer and am eager to transition into app development, particularly for iOS and iPadOS platforms. I am aware of tools like Xcode and Swift but would greatly appreciate guidance on the best place to start. Please suggest a structured learning path or resources that would help me build a strong foundation and advance my skills effectively? Thank you!
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Nov ’24
Limiting UITableView Width Across Different Table View Configurations
I have an iOS App which looks great on iPhone, portrait only, which makes a lot of use of UITableViews. On iPad those tables look stretched out in Landscape. On MacOS with Apple Silicon the app can be resized to any size and the table views look very stretched. There are views in the App which users want to resize so limiting app size not an option. I've been modifying the app's table views to limit their width and centre them using constraints. This isn't easy, it's a lot of work as UITableViewController doesn't allow for constraining the table width. Or does it? So I've changed them to UIViewControllers with UITableView imbedded in the root UIView with constraints. Looks really nice. Now I've just run into the limitation that static tables, which I have a number of, aren't allowed to be embedded. So how can I limit the width of them? I really don't want to add a lot of dynamic code. Please tell me there's an simpler, more elegant method to what really makes a much more aesthetically pleasing UI on iOS App running on iPad and MacOS? TIA!
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Nov ’24
UICollectionView Auto cell height problem
Hi, I'm trying to create a UICollectionView where the cell high is automatic. Cells contains a UILabel with all anchors to the contentView of the cell. It seems to work but I have a strange behavior with longer text, on reload data and on device rotation: Cells do not display the whole text or they change row, both randomly. To create my collection view I first create the collection view with a custom flow layout setting the automatic size on viewWillAppear: let collectionViewFlowLayout = CustomFlowLayout() collectionViewFlowLayout.estimatedItemSize = UICollectionViewFlowLayout.automaticSize collectionView = UICollectionView(frame: .zero, collectionViewLayout: collectionViewFlowLayout) and I have also overridden: override func willAnimateRotation(to toInterfaceOrientation: UIInterfaceOrientation, duration: TimeInterval) { collectionView.setNeedsLayout() self.collectionView.layoutIfNeeded() self.collectionView.collectionViewLayout.invalidateLayout() //self.collectionView.reloadData() } Then, I created the custom layout as follow: import UIKit final class CustomFlowLayout: UICollectionViewFlowLayout { override func layoutAttributesForElements(in rect: CGRect) -> [UICollectionViewLayoutAttributes]? { let layoutAttributesObjects = super.layoutAttributesForElements(in: rect)?.map{ $0.copy() } as? [UICollectionViewLayoutAttributes] layoutAttributesObjects?.forEach({ layoutAttributes in if layoutAttributes.representedElementCategory == .cell { if let newFrame = layoutAttributesForItem(at: layoutAttributes.indexPath)?.frame { layoutAttributes.frame = newFrame } } }) return layoutAttributesObjects } override func layoutAttributesForItem(at indexPath: IndexPath) -> UICollectionViewLayoutAttributes? { guard let collectionView = collectionView else { fatalError() } guard let layoutAttributes = super.layoutAttributesForItem(at: indexPath)?.copy() as? UICollectionViewLayoutAttributes else { return nil } layoutAttributes.frame.origin.x = sectionInset.left if(indexPath.section == 0){ layoutAttributes.frame.size.width = collectionView.safeAreaLayoutGuide.layoutFrame.width - sectionInset.left - sectionInset.right } else if (indexPath.section == collectionView.numberOfSections - 1){ let width = ScreenUtility.getCollectionCellWidthForElement(in: collectionView, sectionLeft: sectionInset.left, sectionRight: sectionInset.right, minimumInteritemSpacing: minimumInteritemSpacing, multiplier: 3) layoutAttributes.frame.origin.x = ScreenUtility.getCollectionCellOriginForElement(in: collectionView, at: indexPath, forElementHavingWidth: width, sectionLeft: sectionInset.left, sectionRight: sectionInset.right, minimumInteritemSpacing: minimumInteritemSpacing, multiplier: 3) layoutAttributes.frame.size.width = width } else if (indexPath.section == collectionView.numberOfSections - 3) || (indexPath.section == collectionView.numberOfSections - 4){ let width = ScreenUtility.getCollectionCellWidthForElement(in: collectionView, sectionLeft: sectionInset.left, sectionRight: sectionInset.right, minimumInteritemSpacing: minimumInteritemSpacing) layoutAttributes.frame.origin.x = ScreenUtility.getCollectionCellOriginForElement(in: collectionView, at: indexPath, forElementHavingWidth: width, sectionLeft: sectionInset.left, sectionRight: sectionInset.right, minimumInteritemSpacing: minimumInteritemSpacing) layoutAttributes.frame.size.width = width } else { let width = ScreenUtility.getCollectionCellSizeForElementFullRow(in: collectionView, sectionLeft: sectionInset.left, sectionRight: sectionInset.right) layoutAttributes.frame.origin.x = ScreenUtility.getCollectionCellOriginForElementFullRow(in: collectionView, sectionLeft: sectionInset.left, sectionRight: sectionInset.right) layoutAttributes.frame.size.width = width } return layoutAttributes } } And finally on collection view cells: override func preferredLayoutAttributesFitting(_ layoutAttributes: UICollectionViewLayoutAttributes) -> UICollectionViewLayoutAttributes { setNeedsLayout() layoutIfNeeded() let targetSize = CGSize(width: layoutAttributes.frame.width, height: 0) layoutAttributes.frame.size = contentView.systemLayoutSizeFitting(targetSize, withHorizontalFittingPriority: .required, verticalFittingPriority: .fittingSizeLevel) return layoutAttributes } override func prepareForReuse() { self.nameLabel.text = "" self.idLabel.text = "" self.contentView.setNeedsLayout() self.contentView.layoutIfNeeded() } Let me show you an example on the iPad that is the worst. First Time I open the collection view I have cells on wrong rows and not sized properly Then I rotate the device portrait and the cells are fine On landscape again it changes behavior: This is just an example, things happens apparently randomly, and also sometimes cells disappear (I think the height is set to 0). I really do not understand why, cells width seems to be computed correctly, and cell label is set via setter: open var step: String = "" { didSet { nameLabel.text = step nameLabel.sizeToFit() self.contentView.setNeedsLayout() self.contentView.layoutIfNeeded() } }
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Nov ’24
[Technical Issue] BDK Native: Unexpected UI element (notch) appearing only in iPad environment
Hi, my name is Yuki. I'm developing an application with generative AI for junior and high school students based on the Nocode tool "bubble" (BDK Native). I want to upload this app to the App Store, however, a notch-like interface element is appearing only in the iPad environment, which is causing my app to fail App Store review. I've reached out to the BDK Native support team about this issue, but they were unable to identify the cause and only offered a refund as a solution. This is particularly frustrating as I'm unable to proceed with the App Store publication, and time is passing without a resolution. Technical details: The notch appears only on iPad devices The issue is not present on iPhone versions The app was built using bubble/BDK Native Multiple App Store submissions have been rejected due to this UI issue Has anyone encountered a similar issue or knows how to resolve this iPad-specific interface problem? Any guidance or suggestions would be greatly appreciated, as this is blocking our app's release. Thank you in advance for your help!
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Nov ’24
Xcode 16.x Simulators sometimes draw the screen with the wrong aspect ratio and appear distorted
Simulators sometimes draw the screen with the wrong aspect ratio and appear distorted. I'm on macOS 14.7 and using Xcode 16.1, but Xcode 16 was also sometimes doing this. This is happening in both iPhone simulator and iPad simulators. Is anyone else seeing this? It's not just the Home Screen, it happens in apps too. I have a weird bug when testing on the iPad simulators and I can't tell if it is a bug in the simulator or in my app. All my iPads are broken, so I can't actually test on device right now.
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Nov ’24
iOS 18.1 - Shared iPad Wi-Fi picker
I work as the end user compute engineer at my employer. My test managed shared iPad Pro was on iOS 18.0.1 and from the sign in screen I was able to double click the lock/wake button twice to open the Wi-Fi picker. I upgraded it to the latest iOS 18.1 update and the Wi-Fi picker screen no longer comes up when double clicking the lock/wake button. Has this feature been removed? If so, this will pose a huge issue when it comes to new users signing in when not on a known Wi-Fi network.
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Nov ’24
iPad external display inconsistency
iPadOS behavior with secondary displays is inconsistent. Firstly, Apple has not published what is the lower limit for supporting the extended display in non-mirrored mode. In iPadOS 16.1 beta even lower resolutions were supported, but it looks like the monitor must now support at least Full HD (1920x1080). Otherwise there will only be the possibility for mirroring the iPad screen and the Arrangement menu will not be visible in iPadOS Settings. This is the case with all iPadOS versions from 16.1 to 18.2 (beta). Secondly, even on monitors that do support Full HD or better resolution, iPadOS may still choose to only support mirroring with a strange resolution such as 1280x1024 even though 1920x1080 would be available. I have tested with various iPad Pro 11" models from gen 1 to gen 4, various USB-C adapters, and cables. Extended display does work properly with certain monitors, but the above issues still exist on others. I have filed feedbacks FB13576000 (Feb '24) and FB11467189 (Sep '22) on this bug. On the Support Community Forums there are a lot of users mentioning the same issues.
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Oct ’24
Crash in iOS 18 regarding [AVPlayerController _observeValueForKeyPath:oldValue:newValue:]
There are significant crash reports coming from iOS 18 users regarding AVKit framework that starts from this line [AVPlayerController _observeValueForKeyPath:oldValue:newValue:] which seems to be coming from iOS internal SDK. There are 2 kinds of crash we found: UI modification on background thread From the stack trace it seems like when AVPictureInPictureController is being deallocated and its view is being removed from superview somehow the code is being executed in background thread because there is this line there _AssertAutoLayoutOnAllowedThreadsOnly highlighted before the crash. But I’ve checked our code that plays around AVPictureInPictureController, in the locations where we would deallocate the object it will always be called on main thread which are insideviewDidLoad and deinit inside UIViewController class. From the log, it seems like the crash happened when user try to open another content when PIP player is active resulting in the current PIP instance will be replaced with a new one. My suspect is the observation logic inside AVPlayerController could be the hint to this issue, probably something broken over there since this issue happened across our app versions on iOS 18 users only. Unfortunately, I was unable to reproduce this issue yet but one of my colleagues reproduced it once but haven’t been able to do it again since. The reports keep raising each day up to 1.3k events in the last 30 days now. Over release object This one has lower reports than the first one but I decided to include it since it might have relevant information regarding the first crash since the starting stack trace is similar. The crash timing seems to be similar to the first one, where we deallocate existing AVPictureInPictureController and later replace it with a new one and also found only in iOS 18 users which also refers to [AVPlayerController _observeValueForKeyPath:oldValue:newValue:]. I also was unable to reproduce this issue so far. Oh, and both of the issues happened on both iPhone and iPad. We’d appreciate any advice on what we can do to avoid this in the future and probably any hint on why it could happened. I have reported this issue with bug number: FB15620734 I also attached one sample crash report for each of the crashes here. non ui thread access.crash over release.crash
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Oct ’24
In PKCanvasview of IOS18, UIPanGestureRecognizer cannot be added
I am creating an application using PKCanvasview. One function of that app is the ability to trace and retrieve a UITextView that has been addSubviewed to a PKCanvasView. We have confirmed that this functionality works correctly in the simulator and on the actual device on IOS 17.4. This feature did not work correctly on the IOS18 simulator and the actual device. Is this a bug? And if it is normal behavior, is there an alternative?
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Oct ’24
ManagedAppleIDDefaultDomains
https://support.apple.com/en-gb/guide/deployment/dep6fa9dd532/web dangles a carrot about being able to facilitate "A list of domains that the Shared iPad sign-in screen displays. The user can pick a domain from the list to complete their Managed Apple ID." - this sounds ideal! In the absence of this seemingly being supported by Apple Configurator or iMazing Profile Editor at the time of writing, I have tried to create my own but I fall foul of knowing what PayloadIdentifier or PayloadType to use? This is the draft/work in progress/doomed to failure config so far (which doesn't - as expected - work): <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>HasRemovalPasscode</key> <false/> <key>PayloadContent</key> <array> <dict> <key>PayloadDescription</key> <string>Configures Managed Domains</string> <key>PayloadDisplayName</key> <string>Domains</string> <key>PayloadIdentifier</key> <string>com.apple.domains.DE12211A-CFDD-4F8C-8D7B-72E569CE3B6C</string> <key>PayloadType</key> <string>com.apple.domains</string> <key>PayloadUUID</key> <string>DE12211A-CFDD-4F8C-8D7B-72E569CE3B6C</string> <key>PayloadVersion</key> <integer>1</integer> <key>WebDomains</key> <array> <string>domain.com</string> </array> </dict> </array> <key>PayloadDescription</key> <string>For Shared iPad login convenience</string> <key>PayloadDisplayName</key> <string>DefaultDomain</string> <key>PayloadIdentifier</key> <string>Tom.77CF3CA5-4A48-41DD-9179-EF6F4C5E786E</string> <key>PayloadRemovalDisallowed</key> <true/> <key>PayloadType</key> <string>Configuration</string> <key>PayloadUUID</key> <string>A5594F17-155B-4A1C-8696-3F502D118C37</string> <key>PayloadVersion</key> <integer>1</integer> </dict> </plist> The support article is probably ~2-year old information so I'd have thought that by now that this would be documented somewhere - am I just not looking hard enough?
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Oct ’24