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Camera's settings at calibration time
Hi everyone, I am wondering under which settings the camera(s) were set by the time they were calibrated. For instance, one aspect that is easy to find is the reference resolution of the images taken when calibrating the intrinsics, this is by retrieving intrinsicMatrixReferenceDimensions. Making sure that the principal point is referenced to the by the time resolution used when the calibration was ongoing. However, recently I saw that there are focusing modes that potentially displace the lens' physical position. Settings like: AutoFocusRangeRestriction: none, near, far setFocusModeLocked: Locks the lens position at the specified value, and sets the focus mode to a locked state. My concern lies the impact this focusing lens displacements have on the intrinsic matrix parameters, if the lens is displaced, these parameters no longer describe the camera since the lens position has changed w.r.t. the lensPosition set when they were calibrated [0-1]. If my understanding is correct the AutoFocusRangeRestriction is just a range freedom the system is allowed to auto-focus and not a specific lens position. Conversely, the setFocusModeLocked does indeed fix the lensPosition to a certain value [0 - 1]. In simple words, what is the focus lensPosition the cameras were set when calibrating them for intrnisics?
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468
Jan ’25
Can a Default Messaging App Handle Legacy SMS Messages on iOS
I have been reviewing the documentation on preparing your app to be the default messaging app, and I am wondering about the following: If I set my app as the default messaging app, will it be able to send and receive legacy SMS messages? Does iOS provide any SMS-specific framework or APIs to facilitate handling SMS messages directly within my app? I’d appreciate any clarification on whether iOS supports such functionality and, if so, how to integrate it into my app. Thank you!
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205
Jan ’25
Make Developer Forums Better!
Too many irrelevant posts come up when I attempt to search for something. There should be an easy button or something to earmark posts as something irrelevant- something that shouldn't come up in a search. I'm looking for something in Xcode 15 and frequently the top posts in the search are 10 years old and don't have any relevance whatsoever to the solution to my problem.
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486
Feb ’25
Developer Program Billing
Hi, I did get the renew invoice in email but there was an additional charge the same day / time for $6.19 from Apple , seems like it is related but cannot find any invoice in email or anything other than a charge line on the credit card. Does anyone have any idea what this additional charge might be? Still waiting to hear back from Apple.
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239
Jan ’25
There is no Driver Extensions option to resolve this error.
I have a Logitech Yeti GX microphone, which is working, but i am unable to fully use all its features because of a driver issue. Logitech states the following to resolve "The program Logitech G Hub Driver installer tried to load a new driver extension. To enable this extension, open Systems Settings>General>Login Items & Extensions>Logitech G Hub HID Driver Extension> Toggle on.... that appears to be simple enough... only problem is that Driver Extension doesnt exist as an option for me. Any thoughts as to why not? Thanks for your help.
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363
Feb ’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
Apple Music glitch
I have 2017 GMC Sierra and no bluetooth so I have to use USB. It worked fine for years but as soon as I down loaded the iOS 18 update when I try to listen to music, it plays a small clip of the song then stops and forwards through the rest of the song and skips to the next. It does this with every song whether it’s a playlist or downloaded on to my phone. I hate listening to the radio and having to listen to commercials which is why I have a 1 year subscription to Apple Music. Because of this glitch I have to listen to the friggin radio in the truck and search for the radio stations I like and suffer through stupid commercials every 10 minutes. None of the updates have fixed this glitch. Please, I beg you, fix it.
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431
Jan ’25
Messages app (iOS) - unintentional trigger of voice memo
There appears to be a bug or a hidden feature where after sending a message in Messages and you hover over or touch near the back button in the top left, voice memo activates and starts recording. This is an unexpected behavior and it has been an issue going back several iOS releases to the current release. This has happened on various phone models, so it isn't limited to a specific model. In addition, (and yes, this does add a second bug/issue) there is a hidden feature where touching in the top left of a message thread, above the back button, causes the focus of the message thread to jump back to some texts/messages from an earlier time. This is unexpected and seems like it should be addressed.
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347
Mar ’25
XCode and Running On iPad Hardware Instead of Simulator
Last year's submission form says that if you select (Run on Xcode) the app will be in the simulator not on an iPad. Has that changed this year, as I don't see it in the terms? (My app has imported local package dependencies for Reality Composer Pro that I am not certain would work on playgrounds for iOS. And it needs the iPad camera for AR functionality.)
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Jan ’25
Firebase Code Help
Hello Developer Community. I need help with Firebase. I have Problems with a Code, so if you can help me, simply reply on this Post and then I share the Code. Thanks for the Help :D
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190
Jan ’25
Screen time
My screen time report says that I’m on Google an average of 24 hrs and 4 minutes a day. How is this possible? I can’t be on Google more than 10 minutes a day let alone 24 hrs. I think it’s probably tracking whatever Google does when I’m not in the app or on the cite as part of screen time, but I can’t get it to stop. Are other people having this issue? How do I stop this so I can see my real screen time?
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361
Jan ’25
CarPlay shows black screen on my car for first connection if iOS version larger than 17.5
iPhone: iPhone 12 pro max, iOS:18.3.1 Step: Connect CarPlay to my car, after connection success, CarPlay screen is black. This issue only happens of first time connection; I have asked OEM factory, they told me because of my iOS version is larger than 17.5, and above this version, will have this issue. So, I need your help to figure problem and update in new version.
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328
Mar ’25
swift编写的工程无法获取OC制作的sdk传输的数据
在使用xcode15.2与iOS14.2版本的手机进行调试时,发现OC编译的sdk无法正常传输数据给swift编写的项目。当我的手机连接xcode调试的时候,数据能够正常传输、转换。当我断开手机与xcode的连接的时候,就无法正常获取数据了。而这个问题目前我只发现在iOS14.2中。当我使用iOS17与iOS18手机调试时没有出现这个问题。请问有没有人遇到过相似的问题。
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Feb ’25
macOS 15.4 Beta (24E5222f) Killed My External Displays – Send Help (or an Exorcist)
For 9 Glorious Months, My MacBook Pro & J5 Create JCD543 HUB Were Best Friends… Until I Updated macOS For nearly a year, my MacBook Pro 14” (2023, M2 Pro, 16GB RAM) worked flawlessly with my J5 Create JCD543 HUB, allowing me to run: ✅ 4 External Displays (Samsung, LG, Insignia, Samsung) A setup that worked perfectly… until I updated macOS. Then Came the Update… and the Issues Began First, I updated last week. Two of my four displays stopped working. No big deal, I thought—I’ve dealt with display quirks before. Then, like an optimist ignoring red flags, I updated again last night to 15.4 Beta (24E5222f) and… well, now things are completely broken. My Once-Perfect Setup (Now a Display Disaster) JCD543 HUB → 2 HDMI displays (not working) JUD380 HUB → 1 HDMI display (partially working, unstable) MacBook HDMI port → 1 HDMI display (working, but feeling abandoned) JCA365 USB-C to Dual HDMI Adapter (Not part of my setup, but tested—also not working) What I’ve Tried (aka My Troubleshooting Journey) ✔ Restarted my Mac multiple times ✔ Uninstalled and reinstalled J5 drivers ✔ Swapped cables, unplugged/replugged everything, tested known-working HDMI cables (they work fine on other devices) ✔ Deleted /Library/Preferences/com.apple.windowserver.displays.plist (this fixed a similar issue in the past, but the file no longer exists in this update) The Likely Culprit? It seems to be a J5 driver issue triggered by the macOS update—and I’m not alone. Others are reporting similar problems. Apple… Any Fixes? I just want my four screens back. The setup worked flawlessly for 9 months, so it’s hard to believe it was never meant to work. If anyone has a workaround, I’m open to testing any solution—whether it’s a driver update, system tweak, or hidden macOS setting that might bring my displays back to life. Any advice would be greatly appreciated! Thanks in advance. (P.S. Apple, if you’re reading this—please look into this issue!)
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553
Mar ’25
USB Audio Input Blocked When Screen Mirroring via AirPlay
Hello Apple Developers, I am experiencing an issue where USB audio input (e.g., external USB microphone) is blocked when using AirPlay screen mirroring from my iPhone to a Mac or Apple TV. However, the built-in microphone continues to work without any problem. Issue Details: I am using an iPhone 15 (or latest device) running iOS [your iOS version]. I connect a USB audio interface/microphone via a USB-C adapter or Lightning adapter. The USB microphone works perfectly for audio input before starting AirPlay. The moment I enable AirPlay screen mirroring, the USB microphone stops working, and it disappears from available audio input sources. The built-in microphone continues to function, but I cannot use the USB microphone while mirroring. When I stop screen mirroring, the USB microphone immediately becomes available again. Expected Behavior: I would expect iOS to allow me to continue using an external USB microphone while mirroring my screen, just like it allows the built-in microphone to work. Questions: Is this an intentional restriction in iOS? Is there any workaround to enable USB audio input while using AirPlay screen mirroring? Is there a way to request a feature or configuration option to allow external USB microphones during AirPlay? I appreciate any insights or guidance from the Apple team or fellow developers. Thanks in advance! Best regards,
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282
Mar ’25