When using FileImporter in SwiftUI, the following error is always returned when closed; even if the user taps "Cancel" The view service did terminate with error: Error Domain=_UIViewServiceErrorDomain Code=1 "(null)" UserInfo={Terminated=disconnect method} Recreation rate is 10/10. It feels like a threading issue, but in SwiftUI we are leveraging the .fileImporter modifier, so we cannot hold on to the reference like we would in a class. Is there a different approach we should be using for this? Code for recreation import SwiftUI struct ContentView: View { @State private var fileURL: URL? @State private var showFileImporter: Bool = false var body: some View { VStack { if let fileURL { Text(fileURL.absoluteString) } Button { showFileImporter = true } label: { Text("Select PDF") } .fileImporter( isPresented: $showFileImporter, allowedContentTypes: [.pdf], allowsMultipleSelection: true ) { result in switch result { case .success(let files): files.forEach { file in let gotAccess = file.startAccessingSecurityScopedResource() if !gotAccess { return } fileURL = file file.stopAccessingSecurityScopedResource() } case .failure(let error): print(error) } } } } }

I have a sandboxed Mac app which I can grant access to a folder using an NSOpenPanel. Once it’s been granted access it can enumerate the contents of the folder just fine. If I rename the folder while the app is open and then make the app enumerate the folder’s contents again, though, it seems to have lost access. What’s the recommended way to have an app’s sandbox “track” files as they’re moved around the filesystem? (NSDocument handles this for you, from what I can tell.) I’ve managed to hack something together with a combination of Dispatch sources and security-scoped bookmarks, but it feels like there must be an easier solution …

I was able to add new domain with 'NSFileProviderManager.add' function in Xcode past 2 months. Yesterday I created .pkg file (installer file) for distribution with 'pkgbuild' and 'productbuild' commands in terminal. I successfully install application and test it then uninstall it. However after this, In Xcode I cannot add new domain anymore. I keep getting "Error Domain=NSFileProviderErrorDomain Code=-2001 "No valid file provider found with identifier ‘’." Command that used to create .pkg file pkgbuild --root "path" --scripts "path" --identifier "same bundle identifier with app" --version 1.0 --install-location /Applications "newpkg.pkg" productbuild --synthesize --package "newpkg.pkg" Distribution.xml productbuild --distribution Distribution.xml --package-path "newpath.pkg" "newpathrelease.pkg" NOTE: When app is installed (But not running). I am able to add new domain in Xcode. After I uninstall app, I start to get same error again NOTE: I uninstall app by move it to Trash from Applications directory in finder Any suggestion about add new domain in Xcode during development? Or How to fix 'No valid file provider found with identifier' error

I need to detect the triggering of an auto-mount operation when accessing the path to a formerly unknown mount point at the file system (BSD, POSIX, NSURL) level, and how to wait for it to finish the operation. Network shares can have sub-volumes on them Consider a Windows server. Let's say there's a SMB sharepoint at C:\Shared. It has some folders, one of which is at C:\Shared\More. Furthermore, there's another partition (volume) on the PC, which is mounted at C:\Shared\More\OtherVol. If you mount the initial share on a Mac with a recent macOS, macOS initially only sees a single mount point at /Volumes/Shared, which can be checked with the "mount" command. Now, if you use Finder to dive into the Shared/More folder, Finder will trigger an auto-mount action on the containing OtherVol folder, and after that, the "mount" command will list two mount points from this server, the second being at /Volumes/Shared/More/OtherVol. (This was a bit surprising to me - I'd have thought that Windows or SMB would hide the fact that the share has sub-volumes, and simply show them as directories - and that's what it did in older macOS versions indeed, e.g. in High Sierra. But in Sequoia, these sub-volumes on the Windows side are mirrored on the Mac side, and they behave accordingly) Browse the volume, including its sub-volumes Now, I have a program that tries to dive into all the folders of this Shared volume, even if it was just freshly mounted and there's no mountpoint at /Volumes/Shared/More/OtherVol known yet (i.e. the user didn't use Finder to explore it). This means, that if my program, e.g. using a simple recursive directory scan, reaches /Volumes/Shared/More/OtherVol, the item will not appear as a volume but as an empty folder. E.g, if I get the NSURLIsVolumeKey value, it'll be false. Only once I try to enter the empty dir, listing its contents, which will return no items, an auto-mount action will get triggered, which will add the mountpoint at the path. So, in order to browse the actual contents of the OtherVol directory, I'd have to detect this auto-mount operation somehow, wait for it to finish mounting, and then re-enter the same directory so that I now see the mounted content. How do I do that? I.e. how do I tell that a dir is actually a auto-mount point and how do I wait for it to get auto-mounted before I continue to browse its contents? Note that newer macOS versions do not use fstab any more, so that's of no help here. Can the DA API help? Do I need to use the old Disk Arbitration functions for this, somehow? I have used the DA framework in the part to prevent auto-mounting, so I imagine I could hook into that handler, and if I get a callback for a mount operation, I could then queue the newly mounted volume for scanning. The problem, however, is that my scanning code may, having only seen an empty directory at the not-yet-mounted mountpoint, already decided that there's nothing there and finished its operation. I'd need some reliable method that lets my recursive scanning code know whether an auto-mount has been triggered and it therefore needs to wait for the DA callback. So, is there some signal that will let me know IMMEDIATELY after entering the empty mountpoint directory that an auto-mount op is on the way? Because I suspect that the DA callbacks come with a delay, and therefore would come too late if I used that as the notifier that I have to wait.

It says that the APFS (Apple File System) is the default file system on iOS, but I just want to confirm that all Apple provided apps such as Photos, Notes, Keynote, Mail, use it also. (hope this question isnt as ****** as it sounds, I guess I’m always a bit uncertain with Apple provided stuff as they have secret privileges)

When my app launches, it makes maybe 9 or so network requests to load initial data. It also reads some data from disc. Sporadically, I'm seeing an issue where some of the network requests succeed, but anything involving reading from disc does not load immediately. I'm able to move around in the app, tap buttons, swap tabs, swipe pages, so my main actor isn't stuck. Other data that don't involve disc reading / writing is also blank. About 2 minutes in, suddenly everything loads (both stuff from disc and stuff from the network), nearly instantly, the way it should have done when the app launched. Server logs show more initial network requests succeed than we can see data loaded in the app, and then about 2 minutes later, there's a flood of the rest of the requests which then succeed. The responses to some of these initial network requests cause us to make other network requests, and the sever sees some of those start right away. However, other consequences of these first requests are to touch the disc (to search for manually-cached data), and anything that is supposed to happen after that does not succeed until the 2 minute mark. But what bothers me is some things in the app which don't touch the disc also seem to have successful network requests. I'm seeing it on an iPhone 14Pro running iOS 18.2.1, with 607 GB of disc space available. When I take screenshots of the loading screens in my app during the apparent freeze, the clock in the screenshots are right - they reflect the clock at the moment I took the screenshot, but the EXIF data in all dozen or so images shows the exact second 2 minutes later when the server gets the resulting flood of network requests. Screenshots taken after the freeze is over have exif timestamps that match the screenshots, as short as 5 seconds after the freeze ends. The screenshot file names, though sequential, are out of order. for instance, some screenshots from 12:58 have file names numbered after screenshots taken at 12:59. but not all are out of order. This seems like disc contention has spread outside the app, and is impacting the system writing the images to disc. How do I diagnose a cause for this? How does disc contention affect the networking? I have caching turned off for my network requests. We only have a manual image cache, but I don't know how that would stall the display of data that should fetch and display without attempting to hit the image cache. This happens maybe a couple of times a day for some people, maybe once every couple of weeks for others, but of course, it never when we're trying to debug it.

I want to write a disk image (ISO, img) to an SD card, but I always get permission errno 13 (permission denied). let diskPath = "/dev/rdisk99" guard let diskHandle = FileHandle(forWritingAtPath: diskPath) else { throw NSError(domain: "DiskWriter", code: Int(errno), userInfo: [NSLocalizedDescriptionKey: "errno \(errno)"]) } It seems that when other macOS applications try to read from a raw block device it triggers an Access Removable Media prompt and when other applications try to write to a raw block device it triggers a Full Disk Access prompt. How can I trigger that prompt? And then how do I elevate my write to use that permission? P.S. I'm not a Swift coder, but I'd like to be... if it weren't that every "simple" thing I've tried launches me directly into a brick wall. :slight_smile: (not a criticism, just that the kinds of problems I like to solve tend towards uncommon and not as well supported in the ecosystem) What I've tried I did change Sandbox App to NO in MyApp.entitlements I have tried manually adding my Debug Archive to Full Disk Access Why? As to why I'm I interested in this: Well, it just seems silly that UI tools that do what dd does are hundreds of megabytes. Can't we do this in a UI that uses all the default macOS libraries and is just a few kilobytes (or megabytes at worst)?

I am working on an iOS application using SwiftUI where I want to convert a JPG and a MOV file to a live photo. I am utilizing the LivePhoto Class from Github for this. The JPG and MOV files are displayed correctly in my WallpaperDetailView, but I am facing issues when trying to download the live photo to the gallery and generate the Live Photo. Here is the relevant code and the errors I am encountering: Console prints: Play button should be visible Image URL fetched and set: Optional("https://firebasestorage.googleapis.com/...") Video is ready to play Video downloaded to: file:///var/mobile/Containers/Data/Application/.../tmp/CFNetworkDownload_7rW5ny.tmp Failed to generate Live Photo I have verified that the app has the necessary permissions to access the Photo Library. The JPEG and MOV files are successfully downloaded and can be displayed in the app. The issue seems to occur when generating the Live Photo from the downloaded files. struct WallpaperDetailView: View { var wallpaper: Wallpaper @State private var isLoading = false @State private var isImageSaved = false @State private var imageURL: URL? @State private var livePhotoVideoURL: URL? @State private var player: AVPlayer? @State private var playerViewController: AVPlayerViewController? @State private var isVideoReady = false @State private var showBuffering = false var body: some View { ZStack { if let imageURL = imageURL { GeometryReader { geometry in KFImage(imageURL) .resizable() ... } } if let playerViewController = playerViewController { VideoPlayerViewController(playerViewController: playerViewController) .frame(maxWidth: .infinity, maxHeight: .infinity) .clipped() .edgesIgnoringSafeArea(.all) } } .onAppear { PHPhotoLibrary.requestAuthorization { status in if status == .authorized { loadImage() } else { print("User denied access to photo library") } } } private func loadImage() { isLoading = true if let imageURLString = wallpaper.imageURL, let imageURL = URL(string: imageURLString) { self.imageURL = imageURL if imageURL.scheme == "file" { self.isLoading = false print("Local image URL set: \(imageURL)") } else { fetchDownloadURL(from: imageURLString) { url in self.imageURL = url self.isLoading = false print("Image URL fetched and set: \(String(describing: url))") } } } if let livePhotoVideoURLString = wallpaper.livePhotoVideoURL, let livePhotoVideoURL = URL(string: livePhotoVideoURLString) { self.livePhotoVideoURL = livePhotoVideoURL preloadAndPlayVideo(from: livePhotoVideoURL) } else { self.isLoading = false print("No valid image or video URL") } } private func preloadAndPlayVideo(from url: URL) { self.player = AVPlayer(url: url) let playerViewController = AVPlayerViewController() playerViewController.player = self.player self.playerViewController = playerViewController let playerItem = AVPlayerItem(url: url) playerItem.preferredForwardBufferDuration = 1.0 self.player?.replaceCurrentItem(with: playerItem) ... print("Live Photo Video URL set: \(url)") } private func saveWallpaperToPhotos() { if let imageURL = imageURL, let livePhotoVideoURL = livePhotoVideoURL { saveLivePhotoToPhotos(imageURL: imageURL, videoURL: livePhotoVideoURL) } else if let imageURL = imageURL { saveImageToPhotos(url: imageURL) } } private func saveImageToPhotos(url: URL) { ... } private func saveLivePhotoToPhotos(imageURL: URL, videoURL: URL) { isLoading = true downloadVideo(from: videoURL) { localVideoURL in guard let localVideoURL = localVideoURL else { print("Failed to download video for Live Photo") DispatchQueue.main.async { self.isLoading = false } return } print("Video downloaded to: \(localVideoURL)") self.generateAndSaveLivePhoto(imageURL: imageURL, videoURL: localVideoURL) } } private func generateAndSaveLivePhoto(imageURL: URL, videoURL: URL) { LivePhoto.generate(from: imageURL, videoURL: videoURL, progress: { percent in print("Progress: \(percent)") }, completion: { livePhoto, resources in guard let resources = resources else { print("Failed to generate Live Photo") DispatchQueue.main.async { self.isLoading = false } return } print("Live Photo generated with resources: \(resources)") self.saveLivePhotoToLibrary(resources: resources) }) } private func saveLivePhotoToLibrary(resources: LivePhoto.LivePhotoResources) { LivePhoto.saveToLibrary(resources) { success in DispatchQueue.main.async { if success { self.isImageSaved = true print("Live Photo saved successfully") } else { print("Failed to save Live Photo") } self.isLoading = false } } } private func fetchDownloadURL(from gsURL: String, completion: @escaping (URL?) -> Void) { let storageRef = Storage.storage().reference(forURL: gsURL) storageRef.downloadURL { url, error in if let error = error { print("Failed to fetch image URL: \(error)") completion(nil) } else { completion(url) } } } private func downloadVideo(from url: URL, completion: @escaping (URL?) -> Void) { let task = URLSession.shared.downloadTask(with: url) { localURL, response, error in guard let localURL = localURL, error == nil else { print("Failed to download video: \(String(describing: error))") completion(nil) return } completion(localURL) } task.resume() } }```

Capability to read and write ofd HFS disks on Mac has been removed since a long time. Capability to simply read was also removed since Catalina I think. That is surprising and sometimes frustrating. I still use a 90's MacBook for a few tasks and need from time to time to transfer files to newer Mac or read some old files stored on 3.5" disks. Solution I use is to read the disk on an old Mac with MacOS 10.6 (I'm lucky enough to have kept one) and transfer to USB stick or airdrop… As there is no USB port on the Macbook of course (and I have no more a working 56k modem to transfer by mail), only option if not 3,5" disk is using PCMCIA port on the MacBook for writing to an SD Card to be read in Mac Sonoma. But reading directly 3.5" disk would be great. Hence my questions for the forum: how hard would it be to write such a driver for READING only HFS on Mac Sonoma? There are some software like FuseHFS. Did anyone experience it ? Did anyone have a look at the source code (said to be open source). does anyone know why Apple removed such capability (I thought it was a tiny piece of code compared to the GB of present MacOS)? Thanks for any insights on the matter.

the Xcode Version 16.2 (16C5032a), I want to know how to setup a directory in Xcode project when develop the iOS app. Here is the whole thing: I start a new iOS App project "test_path". then I right click, and choose "New Folder", to make a new folder "configx" then I right click on the configx folder, and choose the "add files to test_path", add a file in it But the folder does not exist in the project when try to access by "Bundle.main.urls" func. 5. when ls in the Mac, /data/Containers/Bundle/Application/E4F11903-3FAD-467F-A4CD-60AC68D64934/test_path.app, the file just at the root path of test_path.app, no "configx" folder ahead the file. so, how to setup a directory or a path in iOS project?

Please can somebody help me? I have a document-based iOS in the App Store (iNetWorth). I was able to run it on my M1 Mac Mini as a Mac (Designed for iPad) app without any issues until macOS 15. So, I created a simple test app based on a TabView to try and find out why I cannot get iNetWorth to run successfully on my Mac. The issue is that when TabViewApp.swift file looks like this: import SwiftUI @main struct TabViewApp: App { var body: some Scene { /*WindowGroup { ContentView() }*/ DocumentGroup(newDocument: TextFile()) { file in ContentView(document: file.$document) } } } TabView fails to load the ContentView() - in Xcode 16.2 running on macOS 15.3.2. On opening, the TabView app prompts the user to open a new or existing file normally but it then opens a window that is empty, apart from a Documents button and a label displaying the filename with a dropdown menu (Duplicate, Move, Rename..., Export As…). If the @Binding var document: TextFile line is removed from the ContentView() and the TabViewApp.swift file is changed to: import SwiftUI @main struct TabViewApp: App { var body: some Scene { WindowGroup { ContentView() } /*DocumentGroup(newDocument: TextFile()) { file in ContentView(document: file.$document) }*/ } } the TabView app loads and displays the ContentView() correctly. Both versions of TabView, when running in Xcode on My Mac (Designed for iPad), produce these warnings: CLIENT: Failure to determine if this machine is in the process of shutting down, err=1/Operation not permitted LSPrefs: could not find untranslocated node for <FSNode 0x6000013901a0> { isDir = ?, path = '/private/var/folders/3f/8788c4dj50q050_4wg9fssbr0000gp/X/518B55E1-0EC4-5D84-9202-4E44410EB249/d/Wrapper/TabView.app' }, proceeding on the assumption it is not translocated: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted" LSPrefs: could not find untranslocated node for <FSNode 0x6000013901a0> { isDir = ?, path = '/private/var/folders/3f/8788c4dj50q050_4wg9fssbr0000gp/X/518B55E1-0EC4-5D84-9202-4E44410EB249/d/Wrapper/TabView.app' }, proceeding on the assumption it is not translocated: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted" LSPrefs: could not find untranslocated node for <FSNode 0x6000013901a0> { isDir = ?, path = '/private/var/folders/3f/8788c4dj50q050_4wg9fssbr0000gp/X/518B55E1-0EC4-5D84-9202-4E44410EB249/d/Wrapper/TabView.app' }, proceeding on the assumption it is not translocated: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted" LSPrefs: could not find untranslocated node for <FSNode 0x6000013901a0> { isDir = ?, path = '/private/var/folders/3f/8788c4dj50q050_4wg9fssbr0000gp/X/518B55E1-0EC4-5D84-9202-4E44410EB249/d/Wrapper/TabView.app' }, proceeding on the assumption it is not translocated: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted” However, the document-based version of TabView also displays these warnings: cannot open file at line 49450 of [1b37c146ee] os_unix.c:49450: (2) open(/private/var/db/DetachedSignatures) - No such file or directory I suspect that the lack of the DetachedSignatures file is the root cause of the ContentView() not being loaded but I cannot find out how to generate a DetachedSignatures file. Adding an empty DetachedSignatures file or directory to /private/var/db/ does not help. Has anyone else experienced this problem (and maybe found a solution)? Should I raise it as a bug via Feedback or am I missing something obvious? Thanks!

Hi all, i am trying to implement File Provider Extension. I have some questions about conflict resolution Same file is changed at user local and remote storage before it's synced. File has 2 different version at user local and remote storage. After trigger a new enumeration by calling signalEnumerator for the extension, I want to move user's local version to new conflicted copy (with new itemIdentifier: NSFileProviderItemIdentifier) and import remote storage version to user local (with current itemIdentifier: NSFileProviderItemIdentifier). Then users local version should uploaded to remote storage server with new conflicted copy name Any suggestion about this scenario? Or any documentation about conflict resolution

Hello Dev, The App, which I am working on, uses fcopyfile() to copy file from external storage (USB, thunderbolt) to internal disk. Looks like this call provides the best performance. fcopyfile(from, to, nullptr, COPYFILE_DATA); I need to be sure the data is copied after the call. Are there any necessity to synchronize a file's state with that on disk the data? (e.g. call fsync()) Thank you in advance! Pavel

In my App I want to create a new directory structure in a user selected base directory. In the entitlements com.apple.security.files.user-selected.read-write = true is defined. I call URL.startAccessingSecurityScopedResource( ) and get a true value back. When calling FileManager.createDirectory( at: directoryURL, withIntermediateDirectories: true, attributes: nil ) an error is thrown that write access is missing. User has write permissions in that directory. When the user selects a directory I store a bookmark via an @AppStorage variable. After write attempt URL.stopAccessingSecurityScopedResource() is called. I have also implemented a SharedExtension (especially for the Photo app). When user calls the SharedExtension of my app and the app just uses the bookmark stored with @AppStorage and follows the same process as described above no difficulties appear and directories are created as expected. Changing back to the main app, using again the untouched bookmark and execute the exactly same code as in the first attempt everything works fine and as expected. The phenomenon appears on real devices but not on simulator. Any ideas how to solve the issue of having no write access in first attempt?

Hi all, i am trying to implement File Provider Extension. I have some scenarios that I can not figure out, User delete a file on local. 'deleteItem' callback is triggered. I send delete request to remote server. Remove server failed to apply deletion (for some reason deletion failed, blocked). I call 'completionHandler' with necessary error but here is the problem. File is removed in user local but exit in remote server. After some time 'deleteItem' callback is triggered multiple times for this file. I need to put same file in user local (rollback deletion) and stop triggered callbacks. I have a folder named "New folder". This folder is dataless (its sub items is not enumerated yet). User add a file named "a.txt" to this folder on remote server. I detect that addition. When I apply that addition with 'NSFileProviderChangeObserver' observers 'didUpdate' method then enumerate this directory "a.txt" is duplicated (a 2.txt is created). Is there any way to control folder named "New folder" is dataless (its sub items is not enumerated) so that I can skip file addition to prevent duplication. Any suggestion about above scenarios

Can be reproduced with a shared iPad setup (https://support.apple.com/de-de/guide/deployment/dep9a34c2ba2/web) and the example app provided by Apple (https://developer.apple.com/documentation/fileprovider/synchronizing-files-using-file-provider-extensions). The issue is that when using the File Provider extension implemented with 'NSFileProviderReplicatedExtension', the content of the share does not display in the iPadOS Files app. The 'NSFileProviderEnumerating.enumerator' function is invoked, but none of the functions of the returned 'NSFileProviderEnumerator' are executed: neither 'currentSyncAnchor', 'enumerateChanges', nor 'enumerateItems'. Instead, the 'NSFileProviderEnumerator' is immediately invalidated. This issue can be reproduced with iPadOS 18.3 and a shared iPad setup. Maybe i missing some additional steps/ settings in my extension to work properly on Shared iPads. Created also a post on the feedbackassistent: FB16587660 (NSFileProviderReplicatedExtension does not work in Shared iPad setup) Steps to reproduce: iPad with a Shared iPad profile Enroll the iPad and log in as a Guest user Turn on developer mode Install the example app from Apple (as mentioned above) Add some test files to the FruitBasket storage Add this FruitBasket domain to the FruitBasket-iOS app You may need to provide "Privacy - Local Network Usage Description" in the Info.plist of the FruitBasket-iOS example app to be able to find local FruitBasket storage. Check in the Files app to see that the FruitBasket share is empty -> The expected behavior is that the FruitBasket share should contain the test files added previously. (This works fine without a shared iPad setup).

Hi all, reposting this from here: https://unix.stackexchange.com/questions/789849/xattr-c-not-removing-com-apple-finderinfo-attribute I came to this problem because my Xcode project was failing to build due to the error "resource fork, Finder information, or similar detritus not allowed" (was trying the solutions on this post). Basically, running xattr -cr . in the terminal on my project directory removes all extended attributes except com.apple.FinderInfo, which stays on all .xcodeproj and .xcworkspace files. I've tried everything under the sun, from sudo to xattr -d to dot_clean to tar to rsync and nothing works. Is this just an immortal attribute that can never be removed? I'm truly at a loss here, this is for my senior thesis project.

In my app I need to have access to the users desktop, and I would like to implement the standard dialogue for the user to give permission for this access at launch. I do not want to use the NSOpenPanel() for the user to select the desktop, as I dont think that is an elegant solution. However I am having issues implementing this. I use the following code to be granted access to the Desktop URL: let accessGranted = desktopURL.startAccessingSecurityScopedResource() However no dialogue box appears and the call returns false I have also included "Desktop Usage Description" in my plist. Here is my code @State var message:String = "Good Luck!" var body: some View { VStack { Button("Get Desktop files") { accessDesktopWithPermission() } Text(message) } .padding() } //: –—–—–—–—–—–—–—–—–—–—–—–—–—–— :// func accessDesktopWithPermission(){ guard let desktopURL = getDesktopURL() else{ return } let accessGranted = desktopURL.startAccessingSecurityScopedResource() if accessGranted{ if let content = try? FileManager.default.contentsOfDirectory(at: desktopURL, includingPropertiesForKeys: nil ){ message = "Found \(content.count) on Desktop" } else{ message = "issue loading file from desktop" } } else{ message = "Access denied to:\(desktopURL )" } } obviously I have setup something incorrectly so I have also attached my code if anyone is interested to take a look. [https://www.openscreen.co/DesktopAccess.zip)

Howdy! I'm in the R&D phase of this project and I need help. I can't find any sources that verify what I want to do is even possible. I need to connect an iPhone or iPad using a USB cord to an external device which will transfer files to the iPhone or iPad. I have an app already made which can organize the files and whatever else I need to do (app is from a similar project). I'll refer to this device as Alfred (for poops and giggles) The plan (if possible) is for Alfred to recognize my app and use its documents folder as the destination of the transfer. The iDevice doesn't have to communicate with Alfred, but that would be a bonus. I don't want Alfred to run on an SOC. My goal is to have it be as simple as possible. No OS, just firmware. If the only way to interact with Apple Devices is Bluetooth or Wifi than so be it. If Matter or Thread could be utilized I wouldn't be apposed. Any help with this project would be greatly appreciated. Thanks in advance.

I want a user to be able to save a URL of a folder on a cloud share using the standard FileManager APIs. I'm testing with Dropbox in particular. The initial interaction is working (I can select a folder, save it as a bookmark, and scan the files in that folder). However, no changes made externally to the folder will be reflected in the app when I refresh the contents. Launching the Files app and browsing to the folder DOES show the updated contents, and once that step is complete, then my app will again show up-to-date contents. Is there perhaps some API I should be calling to trigger the Dropbox File Provider extension to update it's cache? Sample project demonstrating issue: https://github.com/dhennessy/FolderScan STEPS TO REPRODUCE Launch the app on a physical device Tap Choose, browse to folder on a Dropbox share, tap Open to select The app will show the contents of the folder (the 'test' folder) Switch to the Dropbox app and create a new subfolder of the test folder Return to the test app and tap Refresh. Notice that the changes do not appear Re-launching the app also does not show the changes Workaround Launch the Files app (or re-open the UIDocumentPickerViewController by tapping choose and then dismiss it) Tap Refresh and the changes will appear in the app Note: None of the other 'cloud file providers' (google drive, one drive, box) even allow the user to even select a folder.