I have a PCM audio buffer (AVAudioPCMFormatInt16). When I try to play it using AVPlayerNode / AVAudioEngine an exception is thrown: "[[busArray objectAtIndexedSubscript:(NSUInteger)element] setFormat:format error:&nsErr]: returned false, error Error Domain=NSOSStatusErrorDomain Code=-10868 (related thread https://forums.developer.apple.com/forums/thread/700497?answerId=780530022#780530022) If I convert the buffer to AVAudioPCMFormatFloat32 playback works. My questions are: Does AVAudioEngine / AVPlayerNode require AVAudioPCMBuffer to be in the Float32 format? Is there a way I can configure it to accept another format instead for my application? If 1 is YES is this documented anywhere? If 1 is YES is this required format subject to change at any point? Thanks! I was looking to watch the "AVAudioEngine in Practice" session video from WWDC 2014 but I can't find it anywhere (https://forums.developer.apple.com/forums/thread/747008).

Does anyone know why the following call fails? CGPDFOperatorTableSetCallback(operatorTable, "ID", &callback); The PDF specification seems to indicate that ID is an operator? BTW what is the proper topic/subtopic for questions about Quartz? Wasn't sure what topic on the new forums to post this under.

I have a question about the app lifecycle when my app is launched via a Shortcut. I'm adding a INIntent to a Mac app. So my app delegate implements: - (nullable id)application:(NSApplication *)application handlerForIntent:(INIntent *)intent Then my custom intent handler implements the two protocol methods -confirmIntentNameHere:completion: and -handleIntentNameHere:completion: During my testing -applicationDidFinishLaunching: is called before the intent methods, so I can forward methods to my main window controller to perform the shortcut actions, since it's already ready. ....But if this is not always the case, I can still perform them but I'd have to move the code out of the window controller to perform the action "headless" if invoked before my app has built its UI. Just wondering if this is something I should be prepared for. Thanks in advance.

I have an outside Mac App Store app. It has an action extension. I can't get it to run from Xcode. I try to debug it from Safari. It shows up in the menu when I click the 'rollover' button but it doesn't show up in the UI at all. Xcode doesn't give me any indication as to what the problem is. I see this logs out in console when I try to open the action extension: Prompting policy for hardened runtime; service: kTCCServiceAppleEvents requires entitlement com.apple.security.automation.apple-events but it is missing for accessing={TCCDProcess: identifier=BundleIdForActionExtHere, pid=6650, auid=501, euid=501, binary_path=/Applications/AppNamehere.app/Contents/PlugIns/ActionExtension.appex/Contents/MacOS/ActionExtension}, requesting={TCCDProcess: identifier=com.apple.appleeventsd, pid=550, auid=55, euid=55, binary_path=/System/Library/CoreServices/appleeventsd}, I don't see why the Action extension needs Apple events but I added it to the entitlements anyway but it doesn't seem to matter. The action extension fails to open.

If I do this: NSString *name = @"Jim"; NSMenuItem *menuItem = [[NSMenuItem alloc]init]; // Analyze does show localization warning when format string is used. menuItem.title = [NSString stringWithFormat:@"Hello %@",name]; I expect to get the following warning: User-facing text should use localized string macro But I don't. However if I do this: menuItem.title = @"What"; I do get the warning about localization as expected and as desired when I run Analyze. Is this considered a bug? Thanks!

If I try making a bitmap of a NSButton using the following code: NSBitmapImageRep *rep = [button bitmapImageRepForCachingDisplayInRect:button.bounds]; [button cacheDisplayInRect:button.bounds toBitmapImageRep:rep]; NSData *tiffData = rep.TIFFRepresentation; I get a blank image if the NSButton has its bezelStyle set to NSBezelStyleGlass. If I change the bezel style to something else like NSBezelStyleFlexiblePush I do get an image

I just updated to macOS 26.1. I have a pure AppKit app (I guess that's not possible anymore but as close to a pure AppKit app as you can get). I use NSButton with the glass bezel style and SF symbol images. It looks like the minor OS update brought layout changes because now some of these buttons are scaling the symbol image much larger than was being done on macOS 26. The image can sometimes draw outside the glass 'bezel'. It looks like using the 'info' symbol in a button results in much larger image scaling than it did on the previous Tahoe for some SF Symbols. With the glass bezel style and a SF Symbol image how am I supposed to consistently make the button look good? With certain symbols I have to use imageScaling NSImageScaleProportionallyUpOrDown and on others I have to use NSImageScaleProportionallyDown. If I'm using a system image shouldn't it just do the right thing? Is trial and error the only way to tell? That's what I was doing before but it seems that the minor 26.1 update changed things. Additionally calling -sizeToFit on a button multiple times can cause it to shrink for example: [button sizeToFit]; // <-- At fitting size // Then later [button sizeToFit]; // Now button is shrunk But if the button is already at its fitting size an additional call later shouldn't make it shrink, it should stay the same size. FB20517174 I see I now inherit SwiftUI, not sure if that has anything to do with this but if I wanted to opt in to fragile layout I wouldn't be using Appkit...

When I run my Mac Catalyst app I'm getting unacceptable performance when resizing the window. Window resizing is very unresponsive/laggy. Configuration: The root view controller is a UISplitViewController (three pane split using UISplitViewControllerStyleTripleColumn). Sidebar is configured. It's using a UICollectionView sidebar style (so it looks like NSOutlineView in AppKit). On initial launch there is no selection and the second and third view controllers in the split have empty placeholder view controllers. At this point window resizing is fine. Now I make a selection in the sidebar. This populates the supplementary view controller with a view controller that uses a UITableView. Now resizing the window performance is awful. Basically this is unusable. When resizing the window a bunch what looks to be Core Animation related logs flood the console during window resize: cannot add handler to 3 from 1 - dropping Library: QuartzCore | Subsystem: com.apple.coreanimation Now if I go to my app's Info.plist and add: UIDesignRequiresCompatibility entry with a value of TRUE and follow the same steps described above window resizing works as expected and I do not experience performance issues. Also with UIDesignRequiresCompatibility there is no "cannot add handlers" error logs flooding the console on window resize.

So I noticed this: A sheet window is presented. The sheet window has some UI that makes it expandable say a little arrow expandable button. Click the little expandable button. Now the sheet window controller calls - (void)setFrame:display:animate: on its window to resize. The parent window flies across the screen to the lower left corner. I'm on Tahoe 26.1. Seems to be related to NSSheetMoveHelper. Not sure how long this bug has been around. Workaround is to call -setFrame:display:animate: and pass NO to the animate flag. Then the sheet window resizes (but not animated which doesn't look as good as the old behavior but better than suddenly disappearing). I think Apple may already knows about this bug b/c in an Apple app on Tahoe I see a sheet resizing being done with no animation...

I'm looking to release an update to a Mac application. I've updated this app many times and had no issues. I haven't change any code signing related settings in the project.Now when I try to export a dev ID signed app in Organizer, I'm an error presented as a sheet:An error occurred during exportCodesign failedThe sheet has two buttons: Show Logs and &amp; Cancel. I've filed a bug and sent the logs to Apple. If you cancel the sheet out and hit "Previous" Xcode wll crash on you.Anyone experience this and know of a solution? This is preventing me from pushing an update out to the folks.

I got this email from an app update I submitted yesterday....:To process your delivery, the following issues must be corrected:Invalid Signature - This error occurs when you have signed your app's installer incorrectly. There are two certs required for this process: the "3rd Party Mac Developer Application" cert and the "3rd Party Mac Developer Installer" cert. When signing your package, you need to ensure that you are using the Installer cert to sign your package. Ensure that you are specifying this cert when submitting your app via the Xcode Organizer or when running productbuild from the command line.Once these issues have been corrected, you can then redeliver the corrected binary.Regards,________________The App Store teamWhen I validate the app in organizer for MAS distribution, it passes validation. Also, when I manually switch it to "Installer" in Xcode and try to rearchive the project, I get an error about no provisioning profiles matching the identity. For provisioning profiles, I have it "Automatic". I did try to configure provisioning profiles manually for these app Identifiers in the Member Center, which only has it matching the developer application certicate. Why would the Memeber Center have a provisioning profile not match the installer certificate, if that is the one to be used?BTW, code signing just started acting bonkers on me recently, as it seems to do every now and again, though i haven't made any changes to my certificates nor configurations.

I have an NSTableView (view based). The cells (views) have a NSImageView to display a thumbnail.Thumbnails come from the web, and I load the thumbnails lazily. My class that handles the thumbnail loading has a delegate that sends back a message like this:-(void)thumbnailCache:(nonnull MyThumbnailCacheObject*)thumbnailCache loaddedThumbnailsForURLs:(nonnull NSArray&lt;NSURL*&gt;*)imageURLs { //Get the row indexes for the urls...and then call....reloadDataForRowIndexes:columnIndexes //table view doesnt have columns. [self.tableView reloadDataForRowIndexes:indexes columnIndexes:[NSIndexSet indexSetWithIndex:0]]; }However the cells don't update. At first I thought it was a bug in my thumbnail loading, but a call to reloadData does update the cells properly.Wrapping the reloadDataForRowIndexes:columnIndexes: in between beginUpdates and endUpdates calls makes no difference.Does reloadDataForRowIndexes:columnIndexes: not work with view based table views? I'm tempted to just use reloadData and hope everything works out okay.

I can no longer run my app from Xcode with code signing for my Mac app. I've configured a debug provisioning profile manually and tried that but it fails, saying the embedded framework is not code signed at all.I tried "Automatic" code signing but it fails with the same error:code object is not signed at allIn subcomponent: PATH_HERECommand /usr/bin/codesign failed with exit code 1The only way I'm able to get the app to run is to turn off code signing alltogether in Debug mode. I've noticed in that case though, testing is pretty useless because my app can't event write a security scoped bookmark to disk.

I'm having a hard time tracking the cause of this/ coming up with a workaround for this potential bug in UITableView. I have a UITableView, using the default section header view (I implement -tableView:titleForHeaderInSection: and return a string).After deleting some rows using -deleteRowsAtIndexPaths:withRowAnimation: I notice sometimes an extra header view will appear inside my UITableVIew. It has the same title as the sticky header above it, but it appears the table view lost its reference to the header view but didn't clean it up from the view hierarchy (it scrolls with the table view, never sticks to the top anymore). If I manually empty the entire data source and call reload data on the table view, the abandoned header view is still visible. Has anyone run into this before and know of possible cause and/or workaround?

My developer account uses a different AppleId from the AppleID I use on my devices. Therefore, when I test on my device, I can't look at any of the data in the CloudKit dashboard. It would be a real pain in the neck to have to sign out of icloud and use my developer apple id on my devices just to test. Is there no way to use a different AppleID for CloudKit in the "sandbox" environment like we can for IAP?