The list of categories on the left (and can be customized with the … button at the top-left): Is there any API to get that list of category names and the code points they encompass? They're different than the standard Unicode code point blocks? If so, is it available on iOS? These categories don't appear to be available from any of the unicode.org documents I've seen, but then they host a ton of data, and most of it is beyond my need.

In the iOS system prefs->Accessibility->Keyboards, there's the switch for "Show Lowercase Keys", which allows keyboards to show upper- and lower-case key caps. I can't find any mention of an accessor for that value. It doesn't show in NSUserDefaults when I dump them, nor does any header mention it. I'd like to be able to use it in my custom keyboard extension.

I have an iOS app which contains a custom keyboard that can be used by any app. They share a few prefs by using an app group and a named suite of NSUserDefaults. Each target (app, keyboard) keep their own instance of the shared prefs by storing it in a property: self.sharedPrefs = [[NSUserDefaults alloc] initWithSuiteName:kPrefsSuiteName]; And then add observers for a couple different prefs: [self.sharedPrefs addObserver:self forKeyPath:kPrefRecents options:NSKeyValueObservingOptionNew | NSKeyValueObservingOptionOld context:nil]; When running in the Simulator, both the app and keyboard can write to the shared prefs and both target's observers correctly respond to changes. But when running on a device (iPhone X, iPad Pro 11"), the app can write to the prefs, but the keyboard fails with: 2023-04-17 14:20:20.095600-0500 projectname[561:23591] [User Defaults] Couldn't write values for keys ( Recents ) in CFPrefsPlistSource<0x2807dc500> (Domain: group.com.my.key, User: kCFPreferencesCurrentUser, ByHost: No, Container: (null), Contents Need Refresh: No): setting preferences outside an application's container requires user-preference-write or file-write-data sandbox access I also noticed this when the app adds its first key value observer to the shared prefs: 2023-04-17 14:57:36.610366-0500 projectname[820:45796] [User Defaults] Couldn't read values in CFPrefsPlistSource<0x280bc1c80> (Domain: group.com.my.key, User: kCFPreferencesAnyUser, ByHost: Yes, Container: (null), Contents Need Refresh: Yes): Using kCFPreferencesAnyUser with a container is only allowed for System Containers, detaching from cfprefsd This is supposed to work. What's wrong here?

After picking Automatic code signing, it will crash while packaging the app. Anybody else?

Pertinent system prefs: [X] Ask to keep changes when closing documents [ ] Close windows when quitting an app App setup: autosavesInPlace returns true I've run my app many times and have one test doc that I use each time I run via it being automatically reopened. Recently I created a couple new documents, then closed them before quitting and used the Delete button to dispose of them. Yet each time I run, all the supposedly deleted docs reappear. They're not being deleted from "/Users//Library/Containers//Data/Library/Autosave Information/". Why?