We are using AVFoundation to create a Barcode/Qrcode reader.In there we created a Qr/Barcode detection square area to show in the middle of the ipad/iphone screen with red color boarder and we were able to read below types Barcode/Qrcode in ios 15.4 within that detection area. Below are the barcode types that we read. private let supportedCodeTypes = [ AVMetadataObject.ObjectType.codabar, AVMetadataObject.ObjectType.qr, AVMetadataObject.ObjectType.upce, AVMetadataObject.ObjectType.code39Mod43, AVMetadataObject.ObjectType.code39, AVMetadataObject.ObjectType.code93, AVMetadataObject.ObjectType.code128, AVMetadataObject.ObjectType.ean8, AVMetadataObject.ObjectType.ean13, AVMetadataObject.ObjectType.aztec, AVMetadataObject.ObjectType.pdf417, AVMetadataObject.ObjectType.itf14, AVMetadataObject.ObjectType.dataMatrix, AVMetadataObject.ObjectType.interleaved2of5] But when we update our source to iOS 16, only "AVMetadataObject.ObjectType.codabar" type barcode cannot read inside the detection area. All other barcode can be detect and read inside detection area. if we expand detection area to full screen "AVMetadataObject.ObjectType.codabar" can be readed. So is there a specific reason for this scenario or is it a problem comes with iOS 16?

I have deployed a angular site with nginx server in GKE and set the SSL authentication. I installed the client certificate using Mobileiron Cloud MDM in my ipad. Then i was able to access and validate the certificate using Safari . But when i trying to do the same thing using my application WkWebView it always giving me the "400 Bad Request" error. After some search i realize that we cannot acces the certificates which installed in the Apple Key chain and it they can be only access by applications Safari or apple Mail app. As a solution for this problem then i set the client certifcate inside App Bundle and was able to do the authentication by importing it using "SecPKCS12Import" and do the authentication. let securityError = SecPKCS12Import(data as NSData,                       [ kSecImportExportPassphrase as String : password ] as CFDictionary,                       &_items); Now WKwebView is loading only if authentication is correct. But for this methos i need to upload the client certificate to my App Bundle. So i would like to know, is there a way to do the SSL authentication in WKWebview without bundeling the client certificate to app bundle. I would like a way that i can deploy it in a remote way like Mobileiron Cloud MDM(i already have the subscription so there is no probles accesing all Mobileriron services.) and access that certifcate to authenticate in the WKWebview url loading.

I would like to know what errors can be handled by the UIPrintInteractionController.CompletionHandler.According to the UIKit documentation, four constants were defined for UIPrintError.Code, but that is very rough and I don't know which error codes are returned at specific times. When I print from my iPad using AirPrint, can I get detailed errors such as out of ink, paper jam, or insufficient paper? Also, is there another way to get and handle print errors other than using the UIPrintInteractionController.CompletionHandler?

I'm using UIPrintInteractionController(AirPrint) to print documents in my swift application. I was able to print the documents using my application, but all of them are printing in one-sided. Now i want to add a double-sided printing as an option to my application. After some research i found that it can be implement by adding info.duplex = UIPrintInfo.Duplex.longEdge to printInfo. I tried it using the below code. private var printController = UIPrintInteractionController.shared let info = UIPrintInfo.printInfo() info.duplex = UIPrintInfo.Duplex.longEdge <<<<<< info.jobName = "XXXPrint" info.orientation = .portrait printController.printInfo = info printController.print(to: printer, completionHandler: { [self] controller, completed, error in if(error != nil){ print("successfully") }else{ print("Printing error: \(error.localizedDescription)") } } But whether i set it in the code and run my application it is printing the pages by one-sided. So if some one can guide me to double-sided printing workable solution highly appreciated!!

I want to use the AirPrint API, which is a standard OS printing function, programmatically on an iOS application to print directly to a printer by specifying single-sided printing instead of double-sided printing for the first print after the OS is initialised. 〇Verification environment ・Device: iPad 9 generation ・OS：OS16.6 ・Printer model: EPSON PX-S730 / Brother MFC-J7300CDW / Canon G5030 / EPSON PX-M791FT ※All printers used for verification support AirPrint and are capable of duplex printing. 〇Issue The duplex printing option can be specified from the program using the AirPrint API property "duplex", However, when printing is executed from the program, the specified print option "duplex printing" is not reflected in the AirPrint API. 〇Verification results Installed the developed print verification app on the device in factory default state, and executed the print process from the app to the printer. (1st time) Set the property "duplex printing" = duplex or single-sided in the AirPrint API of iOS → In both cases, printing was performed on both sides. (2nd and subsequent times) Set the property "duplex printing" = duplex or single-sided in the AirPrint API of iOS → In both cases, printing is done on one side. 〇Source Code The print verification application we developed uses the UIPrintInteractionController class in Swift to specify the printing options for duplex printing. We believe we can specify this by setting "info.duplex = UIPrintInfo.Duplex.none" in the following source code and adding it to printInfo. func buttonClick(_ sender: Any) { let printController = UIPrintInteractionController.shared let printInfo = UIPrintInfo(dictionary: nil) printInfo.jobName = "PrintJob from PrintTestApp" // color printInfo.outputType = UIPrintInfo.OutputType.general // duplex mode for the print printInfo.duplex = UIPrintInfo.Duplex.none // set the single side option printController.printInfo = printInfo // PDF printing in project folder printController.printingItem = Bundle.main.url(forResource: "sample", withExtension: "pdf")! // printer settings let printer = UIPrinter(url: URL(string: "ipps://XXXXXXX/ipp/print")!) // direct printing printController.print(to: printer, completionHandler: { controller, completed, error in guard error == nil else { return } }) }

Environment→ ・Device: iPad 9th generation ・OS：iPadOS17.1、iPadOS16.6 ・Printer model：EPSON PX-S730 What I want→ I want to determine whether the printer and iPad are connected to the same Wi-Fi network. Current issues→ When I run the below code on an iOS17 iPad, contactPrinter() becomes true even though you are not connected to the same network as the printer. Problem Description→ I want to pass the URL of the printer that I have set in advance and print directly from the device to the printer. So in iOS 16 when i execute the below code, without connecting to the same network as printer, return value of the "contactPrinter" method is FALSE. once i update to iOS 17 and ran the same code with the same conditions(iPad and printer not connected to same network), return value becomes TRUE. [I'm using "contactPrinter" method because after update to iOS 17 i was able to successfully launch a print job even if your device isn't connected to the same network as your printer.But in iOS 16 it return as an Error.] Is this a bug in iOS 17? Or is the method used incorrectly? Test code: let printer = UIPrinter(url: URL(string: "printer url")!) printer.contactPrinter { (available) -> Void in if (available) { // iOS17.1:true, iOS16.6:false print("connected to printer") printController.print(to: printer, completionHandler: printCompletionHandler) } else { print("not connected to printer") } }

I’m creating a hybrid app using Swift and Angular. Angular content is loading on top of the Native Swift WkWebView. Starting from iPad 10th generation only in the app initial launch header area become invisible(invisible means header text becomes white). But once I send the app to background and return to foreground header text becomes black and it will show without problem. I would really like to know whether this is a OS problem and if so is there any pro-grammatical solution for this? if anyone can guide me to proper way fix this much a appreciated!!! Environment: ・Device: iPad 10th generation ・OS：iPad OS 17.3.1 ・Native App : Swift 5

Environment→ ・Device: iPad 9th generation ・OS：**iOS17.5.1 ・Printer model：EPSON PX-S730 Current issues→ An error message is not returned from the printer if a print job is sent while the printer is off. Problem Description→ The AirPrint feature on an iPad 9th generation running iOS 17.5.1 is being used with an EPSON PX-S730 printer. When sending a print job while the printer is off, the Print Center shows the ongoing printing job, but the printing cannot be executed because the printer is off. What I want→ I would like an error to be returned when I submit a printing job while the printer is off. Test code: Note: printController.print response is completed but Print Center status is printing let printInfo = UIPrintInfo(dictionary: nil) printInfo.jobName = "Print Job" printController.printInfo = printInfo let pdfURL = Bundle.main.url(forResource: "sample", withExtension: "pdf")! printController.printingItem = pdfURL let printer = UIPrinter(url: printerUrl) printController.print(to: printer, completionHandler: { [self] printController, completed, error in if(error != nil){ print("error"). }else if completed{ print("completed"). //this scenario handles completion response }else{ print("cancel") } })

I'm developing two native apps and one is a authentication app and other one is business app. In the main flow if buisness application is on the foreground and did nothing for at least 10 minutes it will automatically time out and redirect to the autentication app for token refresh. In this flow universal link redirect to the authetication app without opening Safari. But if i execute the below flow buissness app redirect to the Safari. Buisness App In Foregorund → Displaying a OS screen while app is in Foreground(Like Push Notification Center) → On this satate leave device for 10 minutes → Buisness app will automatically timeout and rediret to Safari(In safari 「NoSuchKey The specified key does not exist.」message is displaying but authentication app Universal link Start button is showing) → After click the Universal Link start button in Safari Authentication App open. I use the below code to start the Universal Link: if let url = URL(string: path) { UIApplication.shared.open(url) } So i would like to know is there a special reason that when Displaying a OS screen while app is in Foreground(Like Push Notification Center) affect the normal flow of Universal redirection to another app?

Environment→ ・Device: iPad 10th generation ・OS：**iOS18.3.2 I'm using AVAudioSession to record sound in my application. But I recently came to realize that when the app starts a recording session on a tablet, OS automatically sets the tablet volume to 50% and when after recording ends, it doesn't change back to the previous volume level before starting the recording. So I would like to know whether this is an OS default behavior or a bug? If it's a default behavior, I much appreciate if I can get a link to the documentation.

Environment→ ・Device: iPad 10th generation ・OS：**iOS18.3.2 We're using AVAudioPlayer to play a sound when a button is tapped. In our use case, this button can be tapped very frequently — roughly every 0.1 to 0.2 seconds. Each tap triggers the following function: var audioPlayer: AVAudioPlayer? func soundPlay(resource: String, type: String){ guard let path = Bundle.main.path(forResource: resource, ofType: type) else { return } do { audioPlayer = try AVAudioPlayer(contentsOf: URL(fileURLWithPath: path)) audioPlayer!.delegate = self try audioSession.setCategory(.playback) } catch { return } self.audioPlayer!.play() } The issue is that under high-frequency tapping (especially around 0.1–0.15s intervals), the app occasionally crashes. The crash does not occur every time, but it happens randomly — sometimes within 30 seconds, within 1 minute, or even 3 minutes of continuous tapping. Interestingly, adding a delay of 0.2 seconds between button taps seems to prevent the crash entirely. Delays shorter than 0.2 seconds (e.g.,0.15s,0.18s) still result in occasional crashes. My questions are: **Is this expected behavior from AVAudioPlayer or AVAudioSession? Could this be a known issue or a limitation in AVFoundation? Is there any documentation or guidance on handling frequent sound playback safely?** Any insights or recommendations on how to handle rapid, repeated audio playback more reliably would be appreciated.

We’re building a hybrid iOS app using Angular (web) rendered inside a WKWebView, hosted by a native Swift app. Recently, we encountered a crash related to UIKeyboardStateManager in UIKit when switching between text inputs continuously within an Angular screen. Scenario The screen contains several text input fields. A “Next” button focuses the next input field programmatically. After about 61 continuous input field changes, the app crashes. It seems like this may be related to UIKit’s internal keyboard management while switching focus rapidly inside a WebView. crash stack: Crashed: com.apple.main-thread 0 WebKit 0xfbdad0 <redacted> + 236 1 UIKitCore 0x10b0548 -[UITextInteractionSelectableInputDelegate _moveToStartOfLine:withHistory:] + 96 2 UIKitCore 0xd0fb38 -[UIKBInputDelegateManager _moveToStartOfLine:withHistory:] + 188 3 UIKitCore 0xa16174 __158-[_UIKeyboardStateManager handleMoveCursorToStartOfLine:beforePublicKeyCommands:testOnly:savedHistory:force:canHandleSelectableInputDelegateCommand:keyEvent:]_block_invoke + 52 4 UIKitCore 0xa36ae4 -[_UIKeyboardStateManager performBlockWithTextInputChangesIgnoredForNonMacOS:] + 48 5 UIKitCore 0xa160f0 -[_UIKeyboardStateManager handleMoveCursorToStartOfLine:beforePublicKeyCommands:testOnly:savedHistory:force:canHandleSelectableInputDelegateCommand:keyEvent:] + 440 6 UIKitCore 0xa07010 -[_UIKeyboardStateManager handleKeyCommand:repeatOkay:options:] + 5760 7 UIKitCore 0xa2fb64 -[_UIKeyboardStateManager _handleKeyCommandCommon:options:] + 76 8 UIKitCore 0xa2fb08 -[_UIKeyboardStateManager _handleKeyCommand:] + 20 9 UIKitCore 0xa30684 -[_UIKeyboardStateManager handleKeyEvent:executionContext:] + 2464 10 UIKitCore 0xa2f95c __42-[_UIKeyboardStateManager handleKeyEvent:]_block_invoke + 40 11 UIKitCore 0x4b9460 -[UIKeyboardTaskEntry execute:] + 208 12 UIKitCore 0x4b92f4 -[UIKeyboardTaskQueue continueExecutionOnMainThread] + 356 13 UIKitCore 0x4b8be0 -[UIKeyboardTaskQueue addTask:breadcrumb:] + 120 14 UIKitCore 0x4a9ed0 -[_UIKeyboardStateManager _setupDelegate:delegateSame:hardwareKeyboardStateChanged:endingInputSessionIdentifier:force:delayEndInputSession:] + 3388 15 UIKitCore 0xfa290 -[_UIKeyboardStateManager setDelegate:force:delayEndInputSession:] + 628 16 UIKitCore 0xf617c -[UIKeyboardSceneDelegate _reloadInputViewsForKeyWindowSceneResponder:force:fromBecomeFirstResponder:] + 1140 17 UIKitCore 0xf5c88 -[UIKeyboardSceneDelegate _reloadInputViewsForResponder:force:fromBecomeFirstResponder:] + 88 18 UIKitCore 0x4fe4ac -[UIResponder(UIResponderInputViewAdditions) reloadInputViews] + 84 19 WebKit 0xfbe708 <redacted> + 100 20 WebKit 0xfbf594 <redacted> + 340 21 WebKit 0x8a33d8 <redacted> + 32 22 WebKit 0x8cee04 <redacted> + 144 23 WebKit 0x1c83f0 <redacted> + 22692 24 WebKit 0x73f40 <redacted> + 264 25 WebKit 0x162c7c <redacted> + 40 26 WebKit 0x1623b4 <redacted> + 1608 27 WebKit 0x73298 <redacted> + 268 28 WebKit 0x72e48 <redacted> + 660 29 JavaScriptCore 0xdb00 WTF::RunLoop::performWork() + 524 30 JavaScriptCore 0xd744 WTF::RunLoop::performWork(void*) + 36 31 CoreFoundation 0xf92c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 28 32 CoreFoundation 0xf744 __CFRunLoopDoSource0 + 172 33 CoreFoundation 0xf5a0 __CFRunLoopDoSources0 + 232 34 CoreFoundation 0xff20 __CFRunLoopRun + 840 35 CoreFoundation 0x11adc CFRunLoopRunSpecific + 572 36 GraphicsServices 0x1454 GSEventRunModal + 168 37 UIKitCore 0x135274 -[UIApplication _run] + 816 38 UIKitCore 0x100a28 UIApplicationMain + 336 39 APP1 0xa2ed0 main + 21 (AppDelegate.swift:21) 40 ??? 0x1aa889f08 (シンボルが不足しています) From reviewing the crash log, it appears that the crash occurs inside UIKeyboardStateManager while handling keyboard or cursor updates. Questions Has anyone seen this specific crash pattern involving UIKeyboardStateManager? Are there known UIKit or WebKit bugs related to UIKeyboardStateManager when continuously changing focus between text fields (especially in WKWebView)? Any insights or workarounds would be greatly appreciated. Thanks!

We have a login flow where the user authenticates in Safari, and at the end of the process the authentication server redirects back to our app using a Universal Link. On most devices, the app opens automatically without any confirmation banner. However, on several iPads, Safari always shows the “Open App A?” banner after the redirect. The user must tap Open every time. Other devices running the same iOS version do not show this issue. Expected Flow (working devices): Start authentication Safari login Authentication server redirects using a Universal Link App A opens automatically Problematic Flow (several iPads): Start authentication Safari login Authentication server redirects using a Universal Link Safari shows “Open App A?” confirmation banner User must tap Open App A starts Questions: Is this a known issue in iOS? Or is this expected behavior under certain conditions (i.e., is there a specific Safari/iOS specification that causes this banner to appear)? Is there any way to prevent Safari from showing the “Open App A?” banner and allow automatic redirection? ＊This issue did not occur on iOS 16, but it started appearing after updating to iOS 17. Devices : iPad 9th Gen/iPad 10th Gen

I want to connect to Wi-Fi programmatically using swift in my iPad application and I want to create according to bellow flow. Enter the network name programmatically Set the programmatically "WAP2-Enterprise" for security. Set username/password. A certificate popup will appear, so tap "Trust". "Turn on the following information." otherwise off. Automatic connection Restrict IP address tracking Set the programmatically IPV4 address below. Configure ID: Manual IP address: 192.XXX.XXX.XXX For tablets, ○○: 1 to 20 Subnet mask: 255.255.255.0 Router: 192.XXX.XXX.XXX Configure DNS server(Set the programmatically) Manual Add server: 8.8.8.8 HTTP proxy(Set the programmatically) Configure proxy: off if anyone you can guide me to proper way much a appreciated!!!

I'm trying to handle the error in NEHotspotConfigurationManager connection method.When i try even OS network connect dialog showing with "Cannot connect" response return as "Success". In my flow i'm trying to connect to a private network. First i connect using below code and then set the IP Address,SubNetMask,Router and DNS server address manually to already added Wifi by running below code. I'm doing this manually because as i understand you cannot set the IP Address,SubNetMask,Router and DNS server address using Swift. https://forums.developer.apple.com/forums/thread/96834?page=2 I read the above thread and what i can understand from that is it's a bug in the os method. So does this problem fixed on latest iOS version? or is there a way to handle this problem? Error handler code→ let eapSetting = NEHotspotEAPSettings() eapSetting.username = self.username eapSetting.password = self.password eapSetting.supportedEAPTypes = [NEHotspotEAPSettings.EAPType.EAPPEAP.rawValue as NSNumber] eapSetting.trustedServerNames = ["ABC"] NEHotspotConfigurationManager.shared.removeConfiguration(forSSID: self.ssid) let hotspotConfiguration = NEHotspotConfiguration(ssid: self.ssid, eapSettings: eapSetting) manager.apply(hotspotConfiguration){ (error) in if let error = error { print("Error") return } else { print("Success") return } }