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CGPDFDocument Rendering Issue with Custom Fonts in iOS 18
we’ve identified that our PDF rendering pipeline leverages the native CGPDFDocument APIs to convert PDF pages into images. However, in the latest release of iOS 18, the provided document fails to render even at the CGPDFDocument level. Our analysis suggests that the issue may stem from the embedded custom fonts not being correctly processed in this version of the iOS platform. This appears to be consistent with several other reports and discussions around font rendering problems introduced in iOS 18, particularly involving subset fonts. We’ve attached a collection of relevant community threads and references, including: Apple Developer Discussion: Subset Font Rendering Issue in iOS 18 Given that our implementation is tightly coupled with Apple’s native PDF rendering APIs, this issue presents a blocking limitation for us. With your permission, we would like to use this document as a sample case to formally report the issue through the appropriate Apple Developer forums and feedback channels.
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134
May ’25
[CarPlay] CPNowPlayingTemplate not being accepted when being passed to pushTemplate:animated:completion
Hey team, I have an app in CarPlay where i was pushing the CPNowPlayingTemplate as follows: self.interfaceController.pushTemplate(CPNowPlayingTemplate.shared(), animated: true) This used to work perfectly, but suddenly I have started to get this error NSInvalidArgumentException: Unsupported object <CPNowPlayingTemplate: 0x119a0b5c0> <identifier: 6EE4E5A9-B1FB-4341-A485-78D7DDEBD8D0, userInfo: (null), tabTitle: (null), tabImage: (null), showsTabBadge: 0> passed to pushTemplate:animated:completion:. Allowed classes: {( CPActionSheetTemplate, CPAlertTemplate, CPVoiceControlTemplate, CPTabBarTemplate, CPListTemplate, CPInformationTemplate, CPContactTemplate, CPMapTemplate, CPGridTemplate, CPSearchTemplate )} How is this possible? Even on Apple docs, it says to pushTemplate Refer https://developer.apple.com/download/files/CarPlay-Developer-Guide.pdf https://developer.apple.com/documentation/carplay/cpnowplayingtemplate/
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858
2w
IOS 26.1 Issue
When I updated IOS 26.1, When someone call me over voice call phone kept vibrating after call has been picked for 15 sec. Can you please check what’s the issue
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882
3w
iOS 26 Developer Beta Issues
Hi, I’ve recently installed the iOS 26 DB, and I’m experiencing heating issues on my iPhone. Is there a fix to this? Also, is it a bug or a feature, that I can’t remove certain sections in the Photos app rather than rearranging them. Pls lemme know. Thanks.
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258
Jun ’25
The proximity sensor works abnormal in some devices.
Steps to Reproduce make an outbound call cover the sensor Actual Behavior the screen won't go dark device iOS Result iphone15 17 Pass iphone14p 18.0.1 Pass iphoneXs_pro max 18.1.1 Pass iphone13pro max 18.2.1 Pass iphone16pro 18.2 Fail iphone15pro max 18.3 Fail iphone12 pro max 18.3 Fail ps: Skype has the same probelm Seems like this issue only happens on iOS18.2+ on some devices, so is there a bug for this?
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351
Apr ’25
How Should a Beginner Properly Start iOS Development? Seeking Advice from Experienced Developers
Hello everyone, I'm a 2nd-year Computer Science student who's excited to dive into iOS development, and I'd really appreciate some guidance from the experienced developers in this community. MY CURRENT BACKGROUND I have a solid foundation in programming fundamentals through my university coursework (data structures, algorithms, OOP concepts), and I'm familiar with general software development principles. However, iOS development is entirely new territory for me, and I want to make sure I start on the right foot. WHAT I'M LOOKING TO UNDERSTAND Learning Path & Technologies Should I start with UIKit or SwiftUI? I've heard conflicting opinions about this How important is it to learn Objective-C in 2025, or should I focus solely on Swift? Are there any foundational Apple frameworks I should prioritize learning early on? Roadmap & Structured Learning Is there a recommended roadmap or learning sequence I should follow? What skills/topics should I master before moving to more advanced concepts? Should I learn iOS development in a linear fashion, or is it better to learn as I build projects? Are there any official Apple learning paths or certifications worth pursuing? Common Mistakes to Avoid What are the most common pitfalls beginners face when starting iOS development? Are there any bad habits or patterns I should consciously avoid from day one? What misconceptions did you have as a beginner that you wish someone had corrected earlier? Project-Based Learning What types of projects would you recommend for someone at my level? Should I build several small apps or focus on one comprehensive project? At what point should I start contributing to open-source iOS projects? Best Practices & Design Patterns Which iOS-specific design patterns (MVC, MVVM, etc.) should I learn first? How can I develop good habits around memory management and app architecture from the beginning? What resources do you recommend for learning iOS best practices, not just syntax? Apple Ecosystem & Tools Beyond Xcode, what tools should be in my toolkit? How important is it to learn about TestFlight, Instruments, and other Apple developer tools early on? Should I get comfortable with CocoaPods/SPM from the start, or wait until I'm more experienced? MY GOALS My goal is to build a solid foundation over the next 6-8 months, create a few portfolio-worthy apps and pursuing iOS development as a career path after graduation. SPECIFIC QUESTIONS How many hours per week would you recommend dedicating to learning iOS development while managing university coursework? What's the best way to stay updated with Apple's annual changes and new frameworks? When should I start thinking about publishing apps to the App Store? Are there any mentorship programs or communities specifically for beginner iOS developers you'd recommend? I know this is a lot of questions, but I genuinely want to learn the right way rather than picking up bad habits I'll have to unlearn later. Any advice, resources, or personal experiences you're willing to share would be incredibly valuable to me. Thank you in advance for taking the time to help a beginner. I'm committed to putting in the work and learning properly!
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244
Oct ’25
USB audio/midi interface with OS 26 Tahoe
The first Beta install stopped recognizing a Yamaha USB audio interface. The next two installs brought the recognition back. The last Beta install doesn't recognize the interface completely. The midi implementation works but the audio implementation isn't recognized in Audio/Midi setup. This might be something to look at in the next Beta release or something audio interface venders should look at in their next driver release.
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507
Sep ’25
Mac Studio – Wake from sleep – Desktop picture not stretching to fill Desktop
On wake from sleep the Mac Studio's Desktop picture is shown in actual resolution instead of stretched to fit screen. For example, a picture which is 2059 × 1371 is shown at that resolution on a 5K Retina screen and so only fills about 60% of the screen area. It starts with the picture positioned in the top left corner but sometimes moves down the screen. This behaviour does not change if the screen is scaled up or down – the picture size is also scaled. Notice that icons on the Desktop are displayed in the correct position. At the same time, the Dock is shown at the bottom of the picture instead of at the bottom of the screen. Usually, the Desktop redisplays correctly. But increasingly, the only solution is to log out and in again. This might be related to my other question on the Desktop picture Pref Pane. See attached example which is a full screen capture i.e. command-shift-3 (with my personal details obscured):
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1.1k
Jan ’25
Sequoia 15.3 Beta 24D5034f
Hi folks, First - I'm not a developer. Some time ago I came across Sequoia Beta and installed it thinking it was just a usage data collection thing. I recently wanted to delete it because I suspected it was causing other issues, but was only offered to have updates stopped. My MacBook Pro M2 still says I'm running Sequoia 15.3 (Beta 24D5034f). I have another, maybe unrelated issue and posted a question about it on Apple Community but the question was deleted and I was pointed here because I mentioned the Beta! This was my question: I can FaceTime from the iPhone but when I try to FaceTime from the Mac, I get a notification on the Mac saying: "iPhone calls not available. Your iPhone is not configured to allow calls using this Mac". My iPhone is a 14Plus on iOS 18.2.1 (22C161). I've tried the iPhone and Mac fixes suggested by Apple but no luck there - that was all about turning iMessages and FaceTime off or signing out for both devices, then power cycling both devices. I don't understand how this is supposed to work. Could my issue be related to the Beta? If so, and in any case, how do I remove the Beta? TIA
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582
Jan ’25
macOS sequoia docking station sporadically disconnects
After recently updating my MacBook Pro (14-inch, 2021, M1 Pro) to macOS Sequoia (15.6), my docking station sporadically disconnects and reconnects about once every 1-5 minutes. This causes my external screens to switch off for about a second, and my external drive to disconnect. This has (obviously) completely broken my workflow, and I've had to resort to connecting two screens directly to the MacBook. I've had to completely disconnect the external drive for fear of corrupting due to the sudden disconnects. I've seen other people report the same or similar issues here, and other places. I've tried all kinds of fixes suggested on various forums (reinstalled drivers, cleared preference files, etc.) without any luck. To be frank, this is a completely unacceptable bug that needs to be fixed ASAP. I cannot accept that installing an os update completely breaks something as fundamental as connecting to external devices via a docker. Especially when this worked completely fine on macOS 13, and I was essentially forced to update because the (working) macOS 13 was no longer supported.
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651
Oct ’25
Beta update 18.3 on IOS
Beta Update Feedback: iOS 18.3 The iOS 18.3 beta update has been a deeply frustrating experience due to numerous critical issues that severely impact the device's functionality. Below is a detailed report of the problems encountered: All major social applications, including WhatsApp, Instagram, and Photos, consistently crash. When launching these apps, the screen often turns dark before reverting to the home screen. This issue persists across other third-party and native apps, making the device unusable for basic tasks. The system frequently hangs, failing to process basic operations effectively. Restarting the device is often the only temporary solution; however, even after multiple restarts, the issues remain unresolved. Significant charging drops are observed, and the device intermittently fails to recognize the charger. Charging efficiency has drastically decreased, creating inconvenience for daily usage. The Photos app is riddled with bugs, making it nearly impossible to use. Basic functions such as viewing, editing, or sharing photos do not work properly. Every aspect of the update feels unstable, with issues cropping up in every corner of the system. The phone’s functionality has deteriorated, so it no longer performs as expected. Device Affected: iPhone 13 Impact Level: Severe This update has caused immense frustration and has made the iPhone 13 difficult.
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2.3k
Jan ’25
Backup and restore Personal IOS data to Supervised device?
Backup and restore Personal IOS data to a Supervised device? We currently have around 200+ iPhone users that are using their devices as personal devices. We are planning on moving them to Intune using Automated Device Enrollment (Supervised). Is it any way possible to backup their devices, do a factory reset, enroll them in Intune, then restore the old data? Is it possible to do backup and restore in this situation? Is there an alternative way to restore the data back to a supervised device?
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596
Feb ’25
About region detection in the iBeacon app
We plan to use signals emitted from iBeacon to perform region detection in an app currently under development. We would like to know if region detection (didEnterRegion) can be performed when the app is in certain states. Region detection must be performed reliably. Is it possible to perform region detection in all of the following situations? • When the app is in the foreground • When the app is in the background • When the app is force-closed • When the smartphone is in sleep mode • When the smartphone is restarted Translated with DeepL.com (free version)
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98
Aug ’25
multidatepicker and saving multiple dates via swiftdata
Any help will be greatly appreciated. Trying to build a calendar/planner app for public school teachers. Classes are held on multiple dates so there is a need for swiftdata to save multiple dates. There are lots of tutorials demonstrating a multidatepicker but none of the tutorials or videos save the dates, via swiftdata. My goal is to save multiple dates. Step 1 is to initialize mockdata; this is done a class called ToDo. var dates:Set = [] Step 2 is the view containing a multidatepicker and other essential code Step 3 is to save multiple dates using swiftdata. Lots of tutorials, code snippets and help using a single date. But after almost 2 weeks of researching youtube tutorials, and google searches, I have not found an answer on how to save multiple dates via swiftdata. Also, I don't know how how to initialize the array of for the mockdata. Here are some code snippets used but the initialization of the array of DateComponenets doesnt work. And saving multiple dates doesn't work either @MainActor @Model class ToDo { var dates:Set<DateComponents> = [] init(dates: Set<DateComponents> = []) { self.dates = dates } } //view struct DetailView: View { @State var dates: Set<DateComponents> = [] @Environment(\.modelContext) var modelContext @State var toDo: ToDo @State private var dates: Set<DateComponents> = [] MultiDatePicker("Dates", selection: $dates) .frame(height: 100) .onAppear() { dates = toDo.dates } Button("Save") { //move data from local variables to ToDo object toDo.dates = dates //save data modelContext.insert(toDo) } } } #Preview { DetailView(toDo: ToDo()) .modelContainer(for: ToDo.self, inMemory: true) }
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640
Feb ’25
SOS
Hi guys, I am looking for some help from anyone very desperate I am being hacked at the system level dealing with Malious 3rd party TVapp Exhibited ksophicisted container based persistence Possible Zero Day exploration Active Network connection to cloud infrastructure resistance to standard removal I did attempt to report to apple security and have not had an update but fear loss of account access even with 2fa since they have ability Currently I can't access internet/wifi(EVEN with ethernet cable) Honestly any help from anyone
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404
Feb ’25