Hi all, I’m working on a UIKit app where I embed a SwiftUI TextField using UIHostingController. I’m using an ObservableObject model to drive the textfield content: class TextFieldModel: ObservableObject { @Published var text: String @Published var placeholder: String @Published var isSecure: Bool @Published var isFocused: Bool init(pText: String, pPlaceholder: String, pIsSecure: Bool, pIsFocused: Bool) { self.text = pText self.placeholder = pPlaceholder self.isSecure = pIsSecure self.isFocused = pIsFocused } } And my SwiftUI view: struct TextFieldUI: View { @ObservedObject var pModel: TextFieldModel @FocusState private var pIsFocusedState: Bool var body: some View { TextField(pModel.placeholder, text: $pModel.text) .focused($pIsFocusedState) } } I embed it in UIKit like this: let swiftUIContentView = TextFieldUI(pModel: model) let hostingController = UIHostingController(rootView: swiftUIContentView) addChild(hostingController) view.addSubview(hostingController.view) hostingController.didMove(toParent: self) Question: In UIKit, if I subclass UITextField, I can override insertText(_:) and choose not to call super, effectively preventing the textfield from updating when the user types. Is there a SwiftUI equivalent to intercept and optionally prevent user input in a TextField, especially when it’s embedded inside UIKit? What is the recommended approach in SwiftUI for this?

Hi everyone, In UIKit, I can detect which key and modifier keys are pressed from an external hardware keyboard using the pressesBegan method in a UIResponder: override func pressesBegan(_ presses: Set<UIPress>, with event: UIPressesEvent?) { for press in presses { if let key = press.key { print("Key: \(key.charactersIgnoringModifiers ?? "")") print("Modifiers: \(key.modifierFlags)") } } } I am now working in SwiftUI (iOS), and I couldn’t find a direct equivalent for pressesBegan. What is the recommended way in SwiftUI to detect modifier keys + key presses from an external keyboard? Is there a built-in API, or should I always wrap a UIKit view/controller for this purpose? Thanks in advance!

Hi, I am an absolute beginner at IOKit registry and have a usecase to obtain the device manufacturer name, device serial number and device USB vendor name progrmatically. I m able to obtain the same using ioreg command but I wanted to get these values within my program. Thanks in advance. Device serial number: ioreg -rd1 -c IOPlatformExpertDevice | grep 'IOPlatformSerialNumber' Device manufacturer name: ioreg -rd1 -c IOPlatformExpertDevice | grep 'manufacturer' USB device vendor names: ioreg -rd1 -c IOUSBHostDevice | grep "USB Vendor Name"

I have been using the Cpp-Swift Interoperability in Xcode15 for direct communication between Cpp and Swift code. It required a few Build settings changes for the Swift Compiler, creating clang modules(module map file) to access cpp code in swift, specifying module map path to the swift compiler etc. I wanted to use this interoperability feature in my visual studio project which is using Cmake. I want to build via cmake, using Xcode generator. Prior to Swift5.9, we were using a ObjC bridging header whose support was provided in the Cmake using the Xcode attribute flag 'XCODE_ATTRIBUTE_SWIFT_OBJC_BRIDGING_HEADER'. Similarly we were specifying the generated header using the attribute 'XCODE_ATTRIBUTE_SWIFT_OBJC_INTERFACE_HEADER_NAME' I m not able to find similar Xcode attribute property flags for my Cmake to enable this interoperability. What are the changes that we need to make in the Cmake(using Xcode generator) for this new interoperability to work. Can someone help with this?

I m trying to create an xcode project with cpp-swift interoperability(introduced in xcode15) using cmake xcode generator. I m able to invoke cpp code in swift and vice-versa but when opening the project in xcode, the build setting for 'C++ and Objective-C Interoperability' is still set to 'C/Objective C' like in image below. I want to set it to 'C++/Objective-C++'. I m using the below cmake for this: . . add_library(cxx-support ./Sources/CxxSupport/Student1.cpp ./Sources/CxxSupport/Teacher.swift ) #include the directory to access modulemap content target_include_directories(cxx-support PUBLIC ${CMAKE_SOURCE_DIR}/Sources/CxxSupport) target_compile_options(cxx-support PUBLIC "$<$<COMPILE_LANGUAGE:Swift>:-cxx-interoperability-mode=default>" ) . . I Have also tried the below in cmake, but it didn't work. #set(SWIFT_OBJC_INTEROP_MODE "objcxx" CACHE STRING "") #target_compile_options(cxx-support PUBLIC #"SWIFT_OBJC_INTEROP_MODE=objcxx") Any help on how this can be achieved?

I have a project where I m making direct swift calls from cpp as introduced in swift5.9. Below is my swift class whose method is being invoked on cpp. import Foundation public class MySwiftClass { public static func testInterop () -> Void { NSLog("----------- hey --------") } } I m able to successfully invoke 'testInterop()' in cpp with the above class, however if I add conformance to NSObject in the 'MySwiftClass' class, then the swift call fails with the error "No member named 'MySwiftClass' in namespace 'Module2'", where Module2 is my swift target. I m not able to identify why is this happening. Any help?

I was going through this apple documention and it states, "By default, the generated header contains interfaces for Swift declarations marked with the public or open modifier", however, In my Xcode project, the public methods are not visible in the objective C code, and only the methods that are marked with @objc are visible. Is there some problem in my code or Is this a bug?

I have observed that some of the applications like xcode show a list of recently opened documents in their dock menu like in the image below. I wanted to show similar recently opened docs for my application but I not able to find any resource on how to achieve this. Can someone help on how to do this?

I had raised a support request in Apple DTS for an issue related to notification. I had a few iteration with the support team related to this but the problem remains unresolved. Everytime I send a response for what has been asked, it takes more than a week for the team to reply. This issue has been pending for over a month now and my work is blocked due to this. Can someone help me in getting a quick response or tell me how to reach the relevant people who can help me with this? Here is my Case ID : 5269018

I have observed that in my application, Even If I set the QoS value of all the thread created to USER_INTERACTIVE, the OS is producing a warning "Thread running at User-Interactive QoS class waiting on a lower QoS thread running at Default QoS class. Investigate ways to avoid priority inversions". I am aware that it is not right to set all threads as USER_INTERACTIVE QoS, but If we assume this case for once, then it means that the OS can dynamically change the QoS of the threads even if we are explicitly setting it. Is this the correct understanding? Also, the main thread has QoS value USER_INTERACTIVE, then is it the case that its child threads will inherit the QoS value from the parent thread, If we are not setting any QoS for a pthread?

I have a project implementing new interop mechanism and I m able to successfully invoke swift class method directly from swift. However, when I try to invoke the swift extension method it produces an error : No member named 'GetExtData' in 'InteropExtension::SwiftCode' Below is my cpp code: #include "CppSource.hpp" #include "InteropExtension-Swift.h" void CppSource::CppToSwiftCall() { // successfull call InteropExtension::SwiftCode::GetClassData(); //Below call is causing error. Why is swift extension method not invoked? InteropExtension::SwiftCode::GetExtData(); } Below is my swift code: import Foundation public class SwiftCode { public static func GetClassData () -&gt; String { return "classMethod" } } extension SwiftCode { public static func GetExtData () -&gt; String { return "ExtMethod" } } Can someone helpout on why is the extension methods not being invoked, and how can I invoke it?

I have implemented the new cpp-swift interop mechanism using modulemap file. I have a use case to pass a swift string to the cpp function. I observed that the below code works and I am able to pass a swift String type directly to a cpp function which received it as const char *. This works only if its received as const char * in cpp(and not char *). However, this is not an interop documented behaviour for interoperating String types and wanted to know whether this is safe to use. If not, can someone suggest an alternative approach to pass a swift string to Cpp. // Swift code public static func StringToCharPointer () -&gt; Void { // calling cpp function and passing a swift String type as argument, which is received as const char * Student.Convert (sUItextdata) //sUItextdata is of type 'String' } //static Cpp function void Student::Convert (const char * pStr) { std::string s(pStr); std::cout &lt;&lt; "char * converted from swift String : " &lt;&lt; s &lt;&lt; std::endl; } Note : I am aware that there is a way to pass it to cpp and receive it as std:string, but I do not wish to use that.

I am having a bundled application(.app file) and I am wanting to run this application via ssh session which does not have GUI access. Launching this application in a desktop GUI session, runs the application perfectly. However, on running it on the same machine via ssh session produces an error. Note: My application does not bring up any GUI window(it' just produces some logs on the terminal), so running it in a non-GUI environment should have worked. I get the below error when trying to launch the unix exe in the .app bundle( ./Myapp.app/Contents/MacOS/Myapp ) on the terminal. I have observed that applicationDidFinishLaunching(_:) gets called and then the below error occurs. +[NSXPCSharedListener endpointForReply:withListenerName:replyErrorCode:]: an error occurred while attempting to obtain endpoint for listener 'ClientCallsAuxiliary': Connection interrupted I tried running other bundled applications via ssh, but all seems to produce the same error. Can someone confirm Is running bundled application in a non GUI session not allowed by Apple. If its allowed, how can I solve this? Even running the .app file using the open command fails to launch the application, although it produces a different error which is consistent across different applications.

I have an exception handling frame for an Xcode application in macOS, which contains Cpp and Swift code. I am using the Unix signals frame for handling exceptions using sigaction. My sigaction signal handler get invoked when there is a swift or Cpp exception. However for some exceptions like SIGSEGV, the signal handler gets called repeatedly. To handle this I am using the SA_RESETHAND flag so that the handler gets invoked only once, and then the default action for the signal take over to terminate the process. This approach works well when an exception occurs due to Cpp code, however when it occurs due to Swift code, the signal handler still gets invoked repeatedly. Can someone explain why is this happening and What is the solution to this?

Can someone update about the current state of the Automator app in macOS. Automator seems like a valuable tool for automating tasks on macOS but in the recent years I have noticed a growing emphasis on the Shortcuts app for automation. It would be great if you could clarify the following: • Current Status of Automator: Is there any official statement regarding the continued support of the Automator app in future macOS versions? • Future of Automator: Does Apple plan to introduce new features or updates for Automator in upcoming releases? • Indifference to Shortcuts App: From what I understand both the ‘Automator’ and the ‘Shortcuts’ app are used for creating workflows/shortcuts to automate tasks. What is it that Automator app has to offer which cannot be done using the Shortcuts app? assuming the continued support for the Automator app. Can all the automator workflows not be automated using the shortcuts app? I understand that Apple is constantly innovating and introducing new tools. However, clarity regarding the future of Automator would be helpful for users like myself. In addition, as a developer I wanted to offer some actions for my application in the Automator app, so that the user can make use of it to create some workflows. But from what I found in the apple documentation here, these action are created using the ‘Automator action’ Project type template in the xcode. However, in the current version of xcode 15, this project type seems to be missing. Does it indicate that apple no longer provides support for applications to create new automator action? If not, how can I provide automator actions for my xcode application?