On Jan 3, 2017, at 8:26 AM, Sandor Szatmari <admin.szatmari....@gmail.com> wrote: > > Steve, > >> On Jan 3, 2017, at 10:17, Steve Christensen <puns...@mac.com> wrote: >> >> In the Date & Time preference panel, I assume that you're referring to the >> option on the Clock tab. If so, those settings refer only to the menubar >> clock display. > I just think it's weird that there are two checkboxes. It seems odd to me > that one would want a 24 hr clock in the menu bar but not anywhere else.
The menubar clock settings also have options for displaying the time with or without seconds, showing AM/PM, showing the day of the week, and showing the date. These options all affect the final representation in the menubar, independent of the locale settings, but you're focusing on just one of these. I have a little bit of experience with the menubar clock in the pre-OS X world so I happen to know that those particular options were present as early as 1992, so people have been living with the arrangement for a long time. >> If you notice in that same preference panel, on the Date & Time tab, there >> is a message at the bottom that says, "To set date and time formats, use the >> Language & Region preferences." Clicking the button takes you to that other >> panel, and there you will find a checkbox that lets you select 24-hour time. > Yes, this is method 2 I referred to. If you check the Language & Region > checkbox it overrides the Date & Time checkbox, enabling 24 hr time display > in the menu bar clock and disabling the Date & Time checkbox. So clearly > someone at Apple sees there is at least a one direction connection between > these two checkboxes. That's merely an implementation detail related to a private system feature. It's no different than if you were to put such an option in your app. >> The Language & Region settings are what specify the locale that is used for >> formatting date and time values (among other things), which is why you see >> those changes reflected in the NSDateFormatter methods. > Yes, this discrepancy (IMHO) is what I was asking about. I don't see why the > option for the clock display would be separated from this option. > > What I was asking for clarity on is the fact that there is no way to detect > that the user prefers 24 hr time display if they only choose method 1, the > Date & Time checkbox. Should I allow my users to set 12 hr time but override > it to 24 hr time if the Language & Region checkbox is checked? This doesn't > feel right. I feel like Apple left room for ambiguity in their design here. The locale settings, in the Language & Region preference panel, specifies the user's current preferences in terms of general time formatting. The clock settings specify the user's current preferences for the menubar clock. I don't see the ambiguity. >>> On Jan 2, 2017, at 10:16 PM, Sandor Szatmari <admin.szatmari....@gmail.com> >>> wrote: >>> >>> I am working on a small application where the primary function is to >>> display the time to the user. My hope was to honor the user's preference >>> setting. I am either missing something or honoring the user's preference >>> is harder than expected. >>> >>> So, there are two places to set 24 hr time display. >>> >>> 1. Date & Time preference panel >>> 2. Language & Region preference panel >>> >>> The cocoa frameworks react differently depending on where you set this. >>> >>> If set by method 1, cocoa frameworks seem unaware of this setting and it >>> appears this is cosmetic in that it only affects the display of the clock >>> in the NSStatusBar. >>> >>> If set by method 2, cocoa frameworks reflect this and the Date & Time >>> setting is disabled noting that the setting has been overridden. >>> >>> So if a user uses method 1, potentially unaware of method 2, how should one >>> go about determining the user's intentions. >>> >>> There are deprecated methods using: (didn't try, it's deprecated) >>> NSUserDefaults with the key NSShortTimeDateFormatString >>> >>> There are supported methods using: (works with method 2) >>> NSString *format = [NSDateFormatter dateFormatFromTemplate:@"j" options:0 >>> locale:[NSLocale currentLocale]]; >>> BOOL is24Hour = ([format rangeOfString:@"a"].location == NSNotFound); >>> >>> Can anyone provide any clarity here? >>> >>> Sandor _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
