Overview

How can an app obtain the valid range for setting thread_time_constraint_policy_data_t for thread_policy_set()?

Hi, I try to create some machine learning model for each stock in S&P500 index. When creating the model(Boosted tree model) I try to make it more successfully by doing hyper parameters using GridSearchCV. It takes so long to create one model so I don't want to think of creating all stocks models. I tried to work with CreateML and swift but it looks like it takes longer to run than sklearn on python. My question is how can I make the process faster? is there any hyper parameters on CreateML on swift (I couldn't find it at docs) and how can I run this code on my GPU? (should be much faster).

When I go to Settings and tap on the account, choose iCloud>manage account storage and try to delete the storage associated with an app id developer mode, it doesn't give me the option to delete the data. I have tried using the CloudKit Console to delete the container data, but the entry for the app is still there. How do I delete it?

I unintentionally turned off iCloud Drive on iPhone. iCloud deleted all my Desktop and Documents files Then sync deleted all my Documents files from all other devices iCloud.com website shows an empty folder. I don’t have any files in the restorable section. I don’t see any iCloud Archive folder created anywhere on my devices to restore. The total amount of information stored was quite large, over 25 GB. I turned back on the iCloud Drive feature, but no data shows up. I have paid extended storage capacity. There is no way that with the push of a button, data that was stored on iCloud servers would be lost. Nothing they say seems to help. Can someone please advise - How to recover data?

Hello, It is possible to encrypt a mac's hard-drive with Filevault. All home user folders are encrypted with the same encryption key. (This is the same encryption key for the whole hard-drive). This encryption key is encrypted with user password. But i don't understand how it works when there are multiple user accounts. Maybe there is a table: The same encryption key is stored several times (one per user account) ? Is there a way for a user to read the filevault encryption key ? Thanks

Hello. My game, which I have been preparing for a long time on Unity, has been completed. But I have a big problem. My game is a game focused on constantly drawing lines. For this reason, I need to draw lines in the safe area at the bottom of the iPhone. However, due to the shortcuts on the iPhone, my game is constantly put in the background or switched to another application. Since there are so many levels in my game, it is almost impossible to redesign the levels and since I am a game with lines drawn, I will always have this problem again. What I want is to cancel the shortcut to switch to another application and put it in the background when I swipe from left to right or right to left when my game opens. When my game opens, the priority is on the lines in my game. I also marked the defer system gestures on edges section on Unity for postponement, but it did not help. Also, postponing it will not solve the problem. For example, they disabled these shortcuts in the (mini metro) game and you can never use these shortcuts in the game. I did a lot of research on forum sites and chatgpt and tried different codes, but I couldn't find a solution. Can you help me with this? When my game is opened, I want to prevent and cancel the transition to another application by drawing a line left and right in the safe area section at the bottom and the game from being placed in the background. I would be very happy if you could help me with a hint or a code on what to do.

I have an iOS SwiftUI app which uses some extensions like NotificationServiceExtension, NotificationContentExtension, WidgetExtension etc. I noticed that each extension uses its own process and has its own bundle with the .appex extension... and is packaged within the app bundle, with .app extension. In my case, most of my logic is in C++ and when the app starts up, it needs to 'startup' the C++ layer. Now, in WidgetExtension, if it's going to read data from disk and update its interface, I need to initialise my C++ layer first. The same can be said for NotificationServiceExtension. This is leading me to include all my C++ artefacts into the extension target as well. Here's my problem: If the size of my app (containing all my C++ artefacts) is 10MB and I'm using 20 extensions (say), the final size of the shipped app bundle is 10MB + (20 * 10MB) = 210MB, since extension bundle (.appex) is packaged within the app bundle (.app). Since the app and the extensions are using the same C++ artefacts, I was hoping to have one binary in the bundle. The app and its extensions will point to this binary. When the app is launched, the app entry point (struct conforming to App protocol) is invoked, in case of widget, the widget entry point (WidgetBundle) is invoked and so on for each extension. This will reduce the final size of the app bundle. Is it possible to have one binary and the app target, all extension targets would use this binary for there functioning?

Hello, I submitted my app on April 15th, and still "Waiting for Review" for over 20 days. Can anyone help me resolve this issue? [Edited by Moderator]

Hi, I have a watchOS app which is able to control Sonos speakers. So people set it to stay active for 1 hour. Unfortunately, the system kills the application every time after 5 to 15 min. I have made many system diagnosis and the pattern is always the same. Carousel decides that the app must be suspended. runnungboardd suspends the app. filecoordinationd kills with SIGKILL because it detected it has been suspended. launchd reports that the app has been killed. The issue is that I don't understand why Carousel wants to suspend the app. I have disabled all animations while the app is in Always on mode. The app does not perform any operations. If anyone has any idea on what do try, I would be glad for help. Here are some of the related logs. There are thousands around that but I could not deduce anything useful from them. The app gets suspended and then the filecoordinationd decides to kill it. But why is it suspended ? Just before, the app invalidates the timelines. But the timelines here are from the Backlight service. debug 2024-05-11 10:19:47.116194 +0200 WatchSonos WatchKit Extension 0x16d57dd0 invalidateAllTimelinesForReason:Host update. for environment:de.heinrich.alexander.WatchSonos.watchkitapp default 2024-05-11 10:19:47.116285 +0200 WatchSonos WatchKit Extension [(FBSceneManager):de.heinrich.alexander.WatchSonos.watchkitapp] Sending action(s): BLSInvalidateFrameSpecifiersAction Here an error occurs when setting the darwin gpu. This could be related default 2024-05-11 10:19:47.176223 +0200 runningboardd [app<de.heinrich.alexander.WatchSonos.watchkitapp((null))>:1706] Shutdown sockets (ALL) default 2024-05-11 10:19:47.176259 +0200 runningboardd [app<de.heinrich.alexander.WatchSonos.watchkitapp((null))>:1706] Set darwin role to: None default 2024-05-11 10:19:47.176264 +0200 runningboardd 1706 Set Darwin GPU to "deny" error 2024-05-11 10:19:47.176292 +0200 runningboardd 1706 setGPURole failed with result = e00002c7 Here the carousel requests suspension which then later performed by the runningoardd default 2024-05-11 10:19:47.177176 +0200 Carousel [app<de.heinrich.alexander.WatchSonos.watchkitapp((null))>:1706] Setting process task state to: Suspended info 2024-05-11 10:19:47.177309 +0200 Carousel Client requesting suspension of PID:1706 Name:<redacted> info 2024-05-11 10:19:47.177407 +0200 Carousel Update delivered for [app<de.heinrich.alexander.WatchSonos.watchkitapp((null))>:1706] with taskState 3 Suspending the process default 2024-05-11 10:21:13.851752 +0200 runningboardd [app<de.heinrich.alexander.WatchSonos.watchkitapp((null))>:1707] Suspending task. info 2024-05-11 10:21:13.851963 +0200 runningboardd Process: [app<de.heinrich.alexander.WatchSonos.watchkitapp((null))>:1707] has changes in inheritances: {( <RBSInheritance| environment:UIScene:@com.apple.frontboard.systemappservices/FBSceneManager:de.heinrich.alexander.WatchSonos.watchkitapp name:com.apple.frontboard.visibility origID:74-186-52947 payload 646688203>, <RBSInheritance| environment:(none) name:com.apple.frontboard.visibility origID:74-186-53033 0> )} info 2024-05-11 10:21:13.852269 +0200 runningboardd Current inheritances: {( <RBSInheritance| environment:(none) name:com.apple.frontboard.visibility origID:74-186-53032 0>, <RBSInheritance| environment:UIScene:@com.apple.frontboard.systemappservices/FBSceneManager:de.heinrich.alexander.WatchSonos.watchkitapp name:com.apple.frontboard.visibility origID:74-186-52947 payload 646688203>, <RBSInheritance| environment:(none) name:com.apple.frontboard.visibility origID:74-186-52948 0>, <RBSInheritance| environment:(none) name:com.apple.frontboard.visibility origID:74-186-53033 0> )} default 2024-05-11 10:21:13.852375 +0200 runningboardd Process: [app<de.heinrich.alexander.WatchSonos.watchkitapp((null))>:1707]: Sending inheritance changeset: <RBSInheritanceChangeSet| gained:{( )} lost:{( <RBSInheritance| environment:(none) name:com.apple.frontboard.visibility origID:74-186-53032 0>, <RBSInheritance| environment:(none) name:com.apple.frontboard.visibility origID:74-186-52948 0> )}> default 2024-05-11 10:21:13.852794 +0200 runningboardd [app<de.heinrich.alexander.WatchSonos.watchkitapp((null))>:1707] Shutdown sockets (SVC) default 2024-05-11 10:21:13.852829 +0200 runningboardd [app<de.heinrich.alexander.WatchSonos.watchkitapp((null))>:1707] Set darwin role to: None Killing the process: default 2024-05-11 10:19:48.441773 +0200 filecoordinationd Detected process suspension: 1706 info 2024-05-11 10:19:48.441776 +0200 filecoordinationd Update delivered for [app<de.heinrich.alexander.WatchSonos.watchkitapp((null))>:1706] with taskState 4 default 2024-05-11 10:19:48.441776 +0200 filecoordinationd Claim 562AB55E-CE67-46FA-A080-798F89013643 observed suspension of client with 1706 error 2024-05-11 10:19:48.444295 +0200 filecoordinationd SimulateCrash() on another process is not supported default 2024-05-11 10:19:48.444361 +0200 filecoordinationd Claim 562AB55E-CE67-46FA-A080-798F89013643 was revoked Reporting the kill default 2024-05-11 10:19:48.455485 +0200 launchd exited due to SIGKILL | sent by filecoordinationd[316], ran for 7913ms

I have a UITableView with 1 section and 3 rows, and each row is 1000 height, the UITableView height is 832, such as below: but when I click the right button, the visibleCells has 2 items(row-0 and row-1), but the indexPathsForVisibleRows only has 1 item(row-0). In my expectation, I set UITableView contentOffset with 168.8, the row-1 cell is visible. but indexPathsForVisibleRows does not correct. Well then, I try to read the assembly of indexPathsForVisibleRows, I found that the UITableView use _visibleBounds to compute indexPathsForVisibleRows, but the _visibleBounds.height is reduced by one when compute, why? the assembly code looks like below:

Is there any update for iOS17 in FairPlay? So far I have found no relevant information. iOS 16 is fine

can i use the es3.1 api in code?

My Objective-C app contains several hundreds lines of deprecated code like these: NSData *tmp = [NSKeyedArchiver archivedDataWithRootObject:singleTaskCleanUserArrayItem]; singleTaskUserArrayItem = [NSKeyedUnarchiver unarchiveObjectWithData:tmp]; New recommended methods: +archivedDataWithRootObject:requiringSecureCoding:error: +unarchivedObjectOfClass:fromData:error: How to implement the new methods in Objective-C? Forums and Documentation refer to Swift but not to Objective-C. Please give me a sample code for the two lines of code Best regards, Gerhard

Using Unreal Engine 5.4 for Apple Vision Pro. Creating a fully immersive VR Experience. When deploying a VR Application, can you use deferred rendering for the Apple Vision Pro? Or do you need to use forward shading, like for mobile devices? My goal would be to use deferred rendering, because of the much better shader options and quality. And I hope that the Apple Vision Pro with the integrated CPU and GPU could handle deferred rendering, that like a MacBook or a powerful Gaming PC, Workstation. I couldn't find any information on that. Have been mainly developing VR Applications for Quest, but would love to create apps for the Apple Vision Pro. But I would need to know if defered rendering will work when deploying VR Apps from the Unreal Engine to the Apple Vision Pro system. Thanks a lot for any more information on that topic, appreciate it! all the best, Bernhard

It seems that when you tested the official code today, you found that screen reading works fine with English characters, but when using Chinese characters, the Text and Button elements cannot be read correctly.. It's important to address this issue to bring convenience to your blind friends. The official code address is:https://developer.apple.com/documentation/swiftui/creating_accessible_views.

I know that I can use face detect with CoreML, but I'm wandering that is there any to identify the same person between two images like Photos app.

I need to obtain data through mqtt and subscription? Is there any idea or framework ？ Think you

Hi Guys, I would like to ask if anyone knows the FPS of screen recording and airplay on Vision Pro. Airplay refers to mirroring the Vision Pro view to MacBook/iPhone/iPad. Also, is there any way to record the screen with the raw FPS of Vision Pro (i.e., 90)?

Hi, I am developing iOS mobile camera. I noticed one issue related to the user privacy. when AVCaptureVideoStabilizationModeStandard is set to AVCaptureConnection which sessionPreset is 1920x1080Preset, after using system API to take a photo, the FOV of the photo will be bigger than preview stream and it will show more content especially in iPhone 15 pro max rear camera. I think this inconsistency will cause the user privacy issue. Can you show me the solution if I don't want to turn the StabilizationMode OFF? I tried other devices, this issue is ok but in iPhone 15pm this issue is very obvious. Any suggestions are appreciated.

Greetings, I have set up two tips in my app, and my app is configured with Tips.configure([.displayFrequency(.daily)]. Tip 1 is set up with no options. Tip 2 has the IgnoresDisplayFrequency(true) option set: var options: [Option] { MaxDisplayCount(3) // We want the user to see these because it's important. IgnoresDisplayFrequency(true) } This option works as expected, as far as I can tell, in terms of making sure that Tip 2 is shown even if I've already seen Tip 1 today. If I interact with my app such that Tip 1 is displayed, and I then interact with it such that Tip 2 should be displayed, Tip 2 shows immediately, even though a day hasn't passed. However, if I do this the other way around, so that Tip 2 is displayed first, and then I interact so that Tip 1 should be displayed, my expectation would be that Tip 1 is not displayed, because another tip has already been shown today. I expected that it would not be shown until the following day, since it is not configured to ignore the tip frequency. That's not what happens, though. Tip 1 is displayed right away, even though Tip 2 has just been shown. This makes me think that setting IgnoresDisplayFrequency on Tip 2 is causing it to also be ignored when considering whether other tips should be shown. I did try omitting IgnoresDisplayFrequency option, and then as expected, only one tip is shown on a day, no matter which one is shown first.