I am seeking for this User Interface(UI) effect --> "Spotlight" a specific IBOutlet (Please see attached Image2.png below) for a week! Explain the "Spotlight" effect : I wish to create is effect similar to NSAlert or beginSheet effect which user cannot click or access the entire window/view until user trigger a button and it back to normal. The whole window/view will becoming darken or gray EXCEPT a specific button I allow my user to interact with. Yet, I found that there is no any trick to create such effect neither in XIB file nor objective-c code. This is urgent for me. Eagerly waiting for your reply. Much Appreciated. (Image 1.png) (Image 2.png)

Hi I have an objective project and when I'm extending the project to Swift It works fine when locally testing it and also when testing it over testflight. But after submitting the app to the appstore and when users download it and use I see crash reports coming from the Sentry related with the swift extensions created over the objective-c class. I'm unable to reproduce this locally. Any Help would be appreciated. Attached the crash report. 605534285f8e4c96af32cf25bb283439-symbolicated.crash

Hi, I have an application Unity that uses the iOS static library. Then this application Unity is build in XCode. I found several utilities that allow you to obfuscate the library in the application. for example this -PPiOS-Rename. I carefully read their documentation "Obfuscate Static Libraries", but at the time of building, the iOS static library are already "hidden in the root" of the Unity app, and XCode cannot obfuscate this. so I need to first obfuscate the library and then add it to the application. Maybe you can suggest another tool(or workaround)? I'll be very grateful.

I’m asking for knowledge after researching the documentation and found the File System in the filter search, if I migrate my code to export it from Objective-C to Swift to access the file system, can a code my own file extension ?

objc[2247]: Class _PathPoint is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore (0x11a0e8a78) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/TextInputUI.framework/TextInputUI (0x130fb08b0). One of the two will be used. Which one is undefined. objc[2247]: Class _PointQueue is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore (0x11a0e8a50) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/TextInputUI.framework/TextInputUI (0x130fb08d8). One of the two will be used. Which one is undefined.

We have noticed recently that when our app is installed from the App Store, it is automatically launched into the background. After the App Store installs our app, it is started into the background (no UI) without the user pressing ‘Open’ from the App Store or tapping the app icon in the home screen. Testing with iOS 15. I assume this is not the correct behavior, an app automatically being launched after being installed. I submitted a bug report (FB9971657), but wanted to know if anyone else was seeing this behavior.

My application is currently crashing in production in iPhone devices running iOS 15.x. The app will work as normal while running developer mode, enterprise builds and Test Flight builds. Unfortunately, I am unable to reproduce this issue even app is downloaded from the app store. I observed crash is happening at main.m. Can someone help me to reproduce this issue? How to read this crash log file? Please find the crash log details attached. 2022-03-04_14-15-23.6227_+0900-a1899fd803a4ed683466702be71b9d224b4cd5bc.crash

Hi everyone, How should I find the root cause of this type of crash with 0x08fd4dbfade2dead? Some file descriptor which is protected but my code closed it, is it correct? But Here's the crash log and from top is close + 8, stack num.1 is a CFRelease(a) function, we do check if a is null before call CFRelease on it. And the for next a few lines are (number 2-6), we don't see any of those function calls open or close a file, no socket network call at all. No sqlite, coredata or even dup and etc... Is there a memory management issue which makes the a point to somewhere else which is the file descriptor?

I understand what the *.tbd files are doing however what I don't understand is why when I look at the install-name: key there is a path for the actual *.dylib library however I cannot see these, they don't exist with ls. For example below is the head of the MacOSX11.3.sdk/usr/lib/libblas.tbd yaml file: --- !tapi-tbd tbd-version: 4 targets: [ x86_64-macos, x86_64-maccatalyst, x86_64h-macos, x86_64h-maccatalyst, arm64-macos, arm64-maccatalyst, arm64e-macos, arm64e-maccatalyst ] uuids: - target: x86_64-macos value: 86F0C2E1-6A2D-34E8-AA84-D4224BB49B33 - target: x86_64-maccatalyst value: 86F0C2E1-6A2D-34E8-AA84-D4224BB49B33 - target: x86_64h-macos value: 8151F97D-CE36-3B38-AEF0-AAC55E9F537B - target: x86_64h-maccatalyst value: 8151F97D-CE36-3B38-AEF0-AAC55E9F537B - target: arm64-macos value: 00000000-0000-0000-0000-000000000000 - target: arm64-maccatalyst value: 00000000-0000-0000-0000-000000000000 - target: arm64e-macos value: 46295B04-B6A4-36A1-A4F7-C9B606CF75A5 - target: arm64e-maccatalyst value: 46295B04-B6A4-36A1-A4F7-C9B606CF75A5 install-name: '/System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib' exports: - targets: [ arm64e-macos, x86_64-macos, x86_64h-macos, x86_64-maccatalyst, It says the install-name is /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib But I cannot see this file and I am afraid neither can the projects I am trying to compile with cmake/make. $ ls /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib ls: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib: No such file or directory

Hi, For some of my use cases, I'm extending an interface using a category. I am overriding some of the methods in the base Interface, but want to call the base interface method after I'm done with the workflow inside the category method. Essentially, doing something similar to a "super" call. While I was looking into how to achieve this, have found something called Method Swizzling( https://nshipster.com/method-swizzling/ , https://newrelic.com/blog/best-practices/right-way-to-swizzle), but this looks too 'hacky'. Is there a better way to achieve this?

How to deduce from NSMethodSignature that a struct argument is passed by pointer? Specifically on ARM. For example if I have: @protocol TestProtocol <NSObject> - (void)time:(CMTime)time; - (void)rect:(CGRect)point; @end And then I do: struct objc_method_description methodDescription1 = protocol_getMethodDescription(@protocol(TestProtocol), @selector(time:), YES, YES); struct objc_method_description methodDescription2 = protocol_getMethodDescription(@protocol(TestProtocol), @selector(rect:), YES, YES); NSMethodSignature *sig1 = [NSMethodSignature signatureWithObjCTypes:methodDescription1.types]; NSMethodSignature *sig2 = [NSMethodSignature signatureWithObjCTypes:methodDescription2.types]; const char *arg1 = [sig1 getArgumentTypeAtIndex:2]; const char *arg2 = [sig2 getArgumentTypeAtIndex:2]; NSLog(@"%s %s", methodDescription1.types, arg1); NSLog(@"%s %s", methodDescription2.types, arg2); The output is: v40@0:8{?=qiIq}16 {?=qiIq} v48@0:8{CGRect={CGPoint=dd}{CGSize=dd}}16 {CGRect={CGPoint=dd}{CGSize=dd}} Both look similar, no indication that CMTime will be actually passed as a pointer. But when I print the debug description: NSLog(@"%@", [sig1 debugDescription]); NSLog(@"%@", [sig2 debugDescription]); The first prints: ... argument 2: -------- -------- -------- -------- type encoding (^) '^{?=qiIq}' flags {isPointer} ... While the second prints: ... argument 2: -------- -------- -------- -------- type encoding ({) '{CGRect={CGPoint=dd}{CGSize=dd}}' flags {isStruct} ... So this information is indeed stored in the method signature, but how do I retrieve it without parsing the debug description? Are there rules I can use to deduce this myself? I tried to experiment with different structs but it is hard to spot a pattern.

we got the following crash from one of our customers: crash log this is happening once they initialize our SDK, with the following command: public static func initialize() { SDKManager.shared().setup(AppKey) } the shared() call doesn't seem to have the crash error since it uses a dispatch_once which in that case would have been displayed in the crash log. the setup method is just a facade method that calls another method which acts as facade as well. after this, in the 3rd method there is bunch of things happening. the issue is that if we look into the crash log, we see only 2 calls to the SDK framework, which like i said are only 2 facades. - (void)setup:(NSString *)appKey {   [self initSDK:appKey]; } - (void)initSDK:(NSString *)appKey {   [self initSDK:appKey withParams:nil]; } its also not clear, what does the mention of objc-runtime-new.mm have to do with this crash since the SDK does not import or access any runtime objects. also, unfortunately we do not have a valid dsym to decrypt the 2 calls pointing to the SDK.

Hi. I am working on Xcode 13.1 When I am building my code and running it on my iPhone (Not on the simulator), the code is crashing. Below is the error message. Please help me out anyone..... *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSBundle initWithURL:]: nil URL argument' *** First throw call stack: (0x1827e9cac 0x199858758 0x183f3c0e0 0x183f12d64 0x103288590 0x1032884b4 0x103288d30 0x102d87544 0x102d86000 0x184c59804 0x184c5c178 0x184d57360 0x184d53a04 0x184f6c928 0x184e4be78 0x184d7a73c 0x1dc3649d4 0x184c3ab28 0x1862a4c4c 0x186297d40 0x1862ab4a4 0x1862b408c 0x184c14b50 0x182795f34 0x182767578 0x182762b0c 0x182775d8c 0x19c8829a0 0x184faafa8 0x184d3f22c 0x102d5bbb0 0x104288190) libc++abi: terminating with uncaught exception of type NSException dyld4 config: DYLD_LIBRARY_PATH=/usr/lib/system/introspection DYLD_INSERT_LIBRARIES=/Developer/usr/lib/libBacktraceRecording.dylib:/Developer/Library/PrivateFrameworks/DTDDISupport.framework/libViewDebuggerSupport.dylib *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSBundle initWithURL:]: nil URL argument' terminating with uncaught exception of type NSException

Hello, I'm trying to address the following crash from an old Objective-C code. Crashed: com.apple.main-thread 0 libobjc.A.dylib 0x88e8 object_isClass + 16 1 Foundation 0x1d748 KVO_IS_RETAINING_ALL_OBSERVERS_OF_THIS_OBJECT_IF_IT_CRASHES_AN_OBSERVER_WAS_OVERRELEASED_OR_SMASHED + 48 2 Foundation 0x2be10 -[NSObject(NSKeyValueObservingPrivate) _changeValueForKeys:count:maybeOldValuesDict:maybeNewValuesDict:usingBlock:] + 284 3 Foundation 0x21c5c -[NSObject(NSKeyValueObservingPrivate) _changeValueForKey:key:key:usingBlock:] + 72 4 Foundation 0x2daf8 _NSSetBoolValueAndNotify + 316 5 SDKCore 0x47854 __45-[CameraSession processPhoto:orientation:]_block_invoke_3 + 239 (CameraSession.m:239) 6 libdispatch.dylib 0x2914 _dispatch_call_block_and_release + 32 7 libdispatch.dylib 0x4660 _dispatch_client_callout + 20 8 libdispatch.dylib 0x12b60 _dispatch_main_queue_callback_4CF + 944 9 CoreFoundation 0x51cd4 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 16 10 CoreFoundation 0xbeac __CFRunLoopRun + 2540 11 CoreFoundation 0x1f3b8 CFRunLoopRunSpecific + 600 12 GraphicsServices 0x138c GSEventRunModal + 164 13 UIKitCore 0x5196a8 -[UIApplication _run] + 1100 14 UIKitCore 0x2987f4 UIApplicationMain + 2092 15 MyApp 0x79bc main + 11 (main.swift:11) 16 ??? 0x102161a24 (Missing) The crash is due to setting takingPhoto to NO in - (void)processPhoto:(AVCapturePhoto *)photo orientation:(UIDeviceOrientation)orientation. From what I understand, the crash would be caused by a released observer receiving the notification, but I don't see how it's possible given the following code (this is an excerpt with relevant parts). @implementation CameraSession @synthesize takingPhoto = _takingPhoto; - (void)dealloc { [self _cleanupObservers]; } - (instancetype)init { self = [super init]; if (self) { [self _setupObservers]; } return self; } - (void)setTakingPhoto:(BOOL)takingPhoto { if (!takingPhoto) { [self.triggerDecider reset]; } _takingPhoto = takingPhoto; } - (BOOL)isTakingPhoto { return _takingPhoto; } - (void)takePhoto { if (self.isTakingPhoto) { return; } self.takingPhoto = YES; // … [self.capturePhotoOutput capturePhotoWithSettings:[self buildCapturePhotoSettings] delegate:self]; } - (void)processPhoto:(AVCapturePhoto *)photo orientation:(UIDeviceOrientation)orientation { dispatch_async(self.captureSessionQueue, ^{ [self.delegate cameraSessionDidSnapPhoto:self]; [self.cameraCaptureHandler processPhoto:photo orientation:orientation onSuccess:^(Scan *scan) { dispatch_async(dispatch_get_main_queue(), ^{ self.takingPhoto = NO; [self.delegate cameraSession:self didGenerateScan:scan]; }); } failure:^(NSError *error) { self.takingPhoto = NO; [self.delegate cameraSession:self didFailToSnapPhotoWithError:error]; }]; }); } #pragma mark - KVO - (void)_setupObservers { [self addObserver:self forKeyPath:@"takingPhoto" options:NSKeyValueObservingOptionInitial|NSKeyValueObservingOptionNew context:CameraSessionKVOContext]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(captureSessionRuntimeError:) name:AVCaptureSessionRuntimeErrorNotification object:self.captureSession]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(captureSessionDidStartRunning:) name:AVCaptureSessionDidStartRunningNotification object:self.captureSession]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(captureSessionDidStopRunning:) name:AVCaptureSessionDidStopRunningNotification object:self.captureSession]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(captureSessionWasInterrupted:) name:AVCaptureSessionWasInterruptedNotification object:self.captureSession]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(captureSessionInterruptionEnded:) name:AVCaptureSessionInterruptionEndedNotification object:self.captureSession]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationDidEnterBackground) name:UIApplicationDidEnterBackgroundNotification object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationWillEnterForeground) name:UIApplicationWillEnterForegroundNotification object:nil]; } - (void)_cleanupObservers { [self removeObserver:self forKeyPath:@"takingPhoto" context:CameraSessionKVOContext]; [[NSNotificationCenter defaultCenter] removeObserver:self]; } - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary&lt;NSString *,id&gt; *)change context:(void *)context { if (context == CameraSessionKVOContext) { if (object == self &amp;&amp; [keyPath isEqualToString:@"takingPhoto"]) { // While taking the photo, stop processing video frames // ... } } else { [super observeValueForKeyPath:keyPath ofObject:object change:change context:context]; } } @end Am I missing something here? Thanks! Bruno

Hi all, I am experiencing crash issue when my app is trying to register the device for notification function. It runs well on a iphone 6 device with ios 11, but this line of code crashes on a newer iphone model with latest ios 15. self.hub registerTemplateWithDeviceToken:sharedManager.pushTokenData name:@"myTemplate" jsonBodyTemplate:template expiryTemplate:nil tags:tagSet completion:^(NSError *error) Have anyone of you encountered similar issue before? Or is it possible that there is some configuration settings I may left out in XCode? Thanks a lot in advance.

my app is newsstand app. it is success download issue in my app with iOS14 & iOS15 simulate. when i try on real device, it fail to download. log Error Domain=NSCocoaErrorDomain Code=513 "“1318303744724624100” couldn’t be moved because you don’t have permission to access “Caches”." UserInfo={NSSourceFilePathErrorKey=/var/mobile/Media/Downloads/7803184277104936561/1318303744724624100, NSUserStringVariant=(   Move ), NSDestinationFilePath=/private/var/mobile/Containers/Data/Application/1C6FE6AF-1670-48ED-BE04-2806C8AECC65/Library/Caches/bgdl-4119-6c4a7ac1c9c0c671.xzip, NSFilePath=/var/mobile/Media/Downloads/7803184277104936561/1318303744724624100, NSUnderlyingError=0x282aa3d80 {Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"}} i have set Privacy - Downloads Folder Usage Description in info.plist please help

When my app is terminate in background, I found the class's + (void)load method called before I relaunch or bring it to foreground.