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Local Swift Package does not update in my project
in my xcode project, i created a new package by going through File > New > Package, just like they said in https://developer.apple.com/documentation/xcode/organizing-your-code-with-local-packages I have a package, but the problem is, whenever I made any changes in the package's source code, it never showed in the main project. I can import the package just fine, but the package does not show anything. no added apis, functions, nothing. Im using Xcode 26.0.1
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38
4w
Can SwiftUI Views serve as delegates?
Structs are value types, and the SwiftUI gets reinitialized many times throughout its lifecycle. Whenever it gets reinitialized, would the reference that the delegator has of it still work if the View uses @State or @StateObject that hold a persistent reference to the views data? protocol MyDelegate: AnyObject { func didDoSomething() } class Delegator { weak var delegate: MyDelegate? func trigger() { delegate?.didDoSomething() } } struct ContentView: View, MyDelegate { private let delegator = Delegator() @State counter = 1 var body: some View { VStack { Text("\(counter)") Button("Trigger") { delegator.trigger() } } } func didDoSomething() { counter += 1 //would this call update the counter in the view even if the view's instance is copied over to the delegator? } }
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40
2w
What is the difference between CLBackgroundActivitySession and the current Always Allow location authorization?
I saw in https://developer.apple.com/videos/play/wwdc2023/10180/ at 12:51 that the CLBackgroundActivitySession will relaunch the app to resume location updates even if user closed the app (which I interpret to mean swiping the app from app switcher) -- despite the fact that the CLBackgroundActivitySession only require a when-in-use location permission. Since this api can give the app location updates even after the user swiped the app from the switcher, how is the api different than using the current always allow authorisation system to continuously record user movements? For the use case of continously tracking them whenever they move (let's say you wanted to record their driving behaviours), can't the app just launch the CLBackgroundActivitySession and continue to recreate this session every time the app is relaunched to keep on tracking?
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964
Jun ’23
How do I check if a version of an sdk I am using in my app uses a privacy impacting sdk?
I am assuming that even if the app i am using is not listed in the ios list of privacy impacting sdks, if they use a privacy impacting sdk in their sdk, then my app will be required to get the privacy manifest for that privacy impacting sdk: the rule must (logically!) be transitive. So far apple has not sent any email about the app needing to provide that for any of our sdks. but i am worried that maybe apple has not done the check for us yet, and by the time they do , we will be near deadline to submit an app.
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1k
Mar ’24
Sdk access to filemanager documents directory
Not sure if my question is weird or not, but I didnt find any documentation about an sdks access to an apps documents directory. Im assuming that because sdk is part of the sandbox that it can access and read from the documents directory? i.e. if i used NSFileManager.defaultManager.URLForDirectory( directory = NSCachesDirectory, inDomain = NSUserDomainMask, appropriateForURL = null, create = false, error = null, ) to write a file called "file.txt", then any sdk my app used has the ability to access the contents of said directory? If yes, why isnt this considered something more worth mentioning? usually in filemanager tutorials they never warn about this. FYI: Im asking more for iOS and iPadOs then MacOs.
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509
Jan ’25
iOS Sdk Version vs iOS Version
When you update XCode it updates the sdk version, but do changes in the sdk take effect for apps running in a lower iOS version or only the corresponding iOS version or higher? For instance, https://developer.apple.com/documentation/ios-ipados-release-notes/ios-ipados-18_1-release-notes Do changes listed in the notes only happen for apps that are running on iOS 18.1 devices or on any device with the app compiled against the 18.1 sdk version? Am I the only person who finds the docs totally unclear on this?
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480
Feb ’25
When getting the PHPickerResult from user selecting media in the Photos app, how to check file extension?
when I get results from picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) and I load the image using itemProvider .loadFileRepresentation (the itemProvider is the NSItemProvider provided by the PHPickerResult) will the url that's returned by this method be guaranteed to have the file extension ie, "file://image.jpeg" not "file://image" I want to know if i need to just check the extension to know its file type. (FYI in case this makes a difference, im only interested in user screenshots and screenrecordings)
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136
Apr ’25
FileAttributeKey.protectionKey's value is always nil in Simulator
It seems like this is not supported in the Simulator because when I run my Unit tests and I try to read protection key-value the value is always nil, even if I set the data protection level when I write the file. On device this key returns the expected value. Is it possible to have the simulator support the data protection classes to run my unit tests? FYI Im testing on iOS
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119
Apr ’25
Unable to create SwiftUI previews in Xcode 26 for iOS 15.5
I am getting this error msg when I try to run a SwiftUI Preview on an iOS 15.5 simulator: Termination Reason: Namespace DYLD, Code 1, Library missing | Library not loaded: /usr/lib/swift/libswift_StringProcessing.dylib | Referenced from: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/iphonesimulator/libLiveExecutionResultsLogger.dylib | Reason: tried: '/Users/hfg/Library/Developer/Xcode/DerivedData/Testios15sim-aawlbfbtggzozseoekycwwpadhrc/Build/Intermediates.noindex/Previews/iphonesimulator/Testios15sim/Products/Debug-iphonesimulator/libswift_StringProcessing.dylib' (no such file), '/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 15.5.simruntime/Contents/Resources/RuntimeRoot/usr/lib/swift/libswift_StringProcessing.dylib' (no such file), '/usr/lib/swift/libswift_StringProcessing.dylib' (no such file), '/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 15.5.simruntime/Contents/Resources/RuntimeRoot/usr/lib/libswift_StringProcessing.dylib' (no such file) FYI I tried with the Legacy Preview Execution both on and off
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122
Nov ’25