I have declared an NSMutableArray and the count should not exceed 100. If some one calls addObject method to add an item to that array when the count is 100 then that method call should not be executed until someone removes an item so that count will go down below 100. Can we use semaphore or group dispatch for signaling or mutex/NSLock is recommended.

How to make one task(insert) wait for another to task(remove) in Objective C?

What is the best way to print in the order for the given implementation (void) print:(NSString*) str while(true) { NSLog(@“%@”, str); } } [self print:@“123”]; [self print:@“ABC”]; [self print:@“456”]; [self print:@“DEF”]; output should be printing in the order continuously 123 ABC 456 DEF 123 ABC 456 DEF … … …

I linked a framework as optional/weak and it's working fine in the latest Xcode but in the older Xcode version compilation is failing due to "framework not found". Is there a way to fix the compilation error in the older Xcode version?

My client is using Xcode 11 but the iOS framework imported in the project is available only in Xcode 13. Client is getting "framework not found" in Xcode 11 . Is there a way to make my project compatible with older Xcode Version?

Xcode is not responding when opening a workspace. I deleted the cache, derived data, saved application state and xcuserdata. I tried with different Xcode version too. Any help is much appreciated.

I wanted to separate a few file from the framework. Let's say I have Class A,B,C,D,E,F,G. I wanted to move Class D and E out of the framework and keep it separate. Creating a new static/dynamic framework/SPM/Target is giving compilation error as Class D and E dependent on other classes. Is there a way to separate Class D and E by putting them in a separate container and import them in the framework?

Sticky key settings including activating it by tapping the shift key 5 times are disabled. However, the sticky key is activated automatically, so macOS behaves like the Shift Key is being pressed. I updated to the latest OS version and logged into safe mode a few times but no help. I verified all the settings related to Sticky keys are disabled Anyone faced this experience. How to stop activating the Sticky keys.

I have a framework written in Objective-C. My framework is in Swift and imported the 3rd party Objective-C framework in my project. @interface AAAA: NSObject(void)setHandler:(idHandler)handler @end I wanted to implement the Handler protocol in my Swift project. I did like this Class ZXY: NSObject, Handler{ init(){ super.init AAAA.setHandler(self) } // Implemented Handler Protocol optional methods func aaaa(){ } } Handler protocol optional method aaaa never called. Am I missing anything

I need to get content-length from response header but it seems that content-length header is missing due to chunked Transfer Encoding. Is there anyway to get the content-length for Transfer-Encoding type

class  a {     b().download ({ data in     }) } class  b{     func download (downloadedData: @escaping (_ data: Data? ) -> Void )  {         c().download()     } } class c {     func download () -> Data {         let semaphore = DispatchSemaphore(value: 0)           NetworkManager().downloadRequest: { (result: Result<Data, Error>) in                                             switch result {                                             case .success(let success)                                                 ......                                              case .failure(let error): .....                                             }                                             semaphore.signal()                                    }                         )         semaphore.wait()         return data     } } Class a initiates the download and class c interacts with network manager to download the data. Class c issues semaphore wait as soon as it sends request to download the data and issues signal when download completes. Is there a way to issue signal from class a when download is in progress. Basically class a should be able to skip wait by issuing signal command

I am trying to localize Swift framework and added a file Localizable.Strings and that file is included in the target but the app that consumes this framework is showing the key not the actual string. NSLocalizedString("string_key", comment: "Actual String") I think issue is related to bundle. Do I need to add bundle parameter to NSLocalizedString? If so what is the bundle parameter value? If bundle is not required then what must be the issue

I believe weak references are not required when using self inside the dispatch queues. Is there any other occasions where weak self is not required related to closure?

I wanted to move a few .swift files from the framework to different container. I tried creating framework/static-library/SPM to move a few files from the framework but getting compilation errors for the new framework and old framework due to dependancy. I don't want ondemand resource and wanted to keep it local. So I looking for some container to move a few files from framework and load/import them back. I tried moving those files to Settings.bundle but unable to load/import them in the framework? Is there any other way to achieve this?

Is there a way to mock the CBPeripheral? I need to stub the CBPeripheral(name & identifier) data in Xcode.