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AVCaptureSession Pausing Session
With the new camera privacy indicator, there is a new need to pause the session at certain times, ie when the full-screen view is presented over the camera preview. This was the only solution for me: func pauseSession () { self.sessionQueue.async { if self.session.isRunning { self.session.stopRunning() } } } func resumeSession () { self.sessionQueue.async { if !self.session.isRunning { self.session.startRunning() } } } This seems to be an expensive operation that takes time. The issue I seem to have is if pause and resume are called near each other in time, the whole app freezes for about 10 seconds, till going back to being responsive. This is mostly due to it still hasn't finished the last process (whether to stop or start). Is there a solution to this? The native camera app seems to do this fine. If you open it, open the last photo, you can see the green indicator on the top right going off (after becoming orange briefly), meaning the session has paused/stopped. If you swipe down on the photo, the session resumes. If you swipe and let it get canceled, quickly swipe again you can see the session pauses and resumes quickly over and over without any issues.
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2.4k
Mar ’21
WidgetKit Crash
On the crash reports, I am getting a lot of crashes with this crash report for two iOS 14 Widgets: Foundation&#9;&#9;_NSFileHandleRaiseOperationException .... SwiftUI&#9;&#9;&#9; FileArchiveWriter.AppendByes(_size:) .... My Widget&#9;&#9;&#9; closure #1 in MyTimelineProver.getTimeline(in:completion:) When checked within the project, this happens in: func getTimeline(in context: Self.Context, completion: @escaping (Timeline<Self.Entry>) -> Void) I have one timeline that asked to update every 5 mins.
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3.5k
Nov ’21
API to use New SF Pro Condensed/Compressed/Expanded
New variants of SF Pro were introduced for iOS 16, but I do not see an update to UIFont API to use them. https://developer.apple.com/documentation/uikit/uifont Another thread on here specified that it could be done through UIFontDescriptor, but it doesn't seem like thee that is the official way. I really wish there is more information on this. I am wanting to use Expanded for my iOS update.
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2k
Aug ’22
App Privacy Listing and Crash Reports
Currently, I have an app that does not collect any user data. So the App privacy listing on the App Store is listed as "Does not collect any data." However, it still receives app crashes and other reports that are available via Xcode Organizer. I believe the user enables this via the prompt "Share analytics, diagnostics, and usage information with Apple" at the system level. So given above, do I need to change the listing to say it explicitly collects crash data?
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2.0k
Jan ’23
Burst Mode Using Bracketed Capture?
Eventhough some apps out there figured out how to do proper burst capture that is equal to stock iOS Camera App, there is no official API to do so.Currently I have it where it wil call capturePhoto over and over, which is not fast enough. I've seen some hints floating around that the proper way to do this is using bracketed capture any input on this?Thanks in advance.
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3.4k
Apr ’23
Stop viewSafeAreaInsetsDidChange() being called
I have a child view controller added and its view gets viewSafeAreaInsetsDidChange() called every time a frame change happens. how do I avoid this? So far I am using these: self.viewRespectsSystemMinimumLayoutMargins = false self.view.insetsLayoutMarginsFromSafeArea = false self.view.preservesSuperviewLayoutMargins. = false However, viewSafeAreaInsetsDidChange() is till being called. Is there a way to stop that?
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898
Jul ’23
UIImageView preferredImageDynamicRange not working
I am trying to display HDR Images (ProRAW) within UIImageView using preferredImageDynamicRange. This was shown in a 2023 WWDC Video let imageView = UIImageView() if #available(iOS 17.0, *) { self.imageView.preferredImageDynamicRange = UIImage.DynamicRange.high } self.imageView.clipsToBounds = true self.imageView.isMultipleTouchEnabled = true self.imageView.contentMode = .scaleAspectFit self.photoScrollView.addSubview(self.imageView) I pull the image from PHImageManager: let options = PHImageRequestOptions() options.deliveryMode = .highQualityFormat options.isNetworkAccessAllowed = true PHImageManager.default().requestImage(for: asset, targetSize: self.targetSize(), contentMode: .aspectFit, options: options, resultHandler: { image, info in guard let image = image else { return } DispatchQueue.main.async { self.imageView.image =image if #available(iOS 17.0, *) { self.imageView.preferredImageDynamicRange = UIImage.DynamicRange.high } } } Issue The image shows successfully, yet not in HDR mode (no bright specular highlights, as seen when the same image ((ProRAW) is pulled on the native camera app. What am I missing here?
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1.1k
Sep ’23
New iOS 18 UIView animation methods not available yet?
On the WWDC24 session video 'Enhance your UI animations and transitions', Appls shows these new animation methods for UIKIT: switch gesture.state { case .changed: UIView. animate(.interactiveSpring) { bead.center = gesture.translation } case .ended: UIView. animate(spring) { bead.center = endOfBracelet } } As of iOS 18 Beta 2, I get an error for `UIView. animate(.interactiveSpring)` These new methods are not available yet?
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940
Jul ’24