UIDatePicker locale does nothing?

问题

I'm creating a UIDatePicker programmatically, and setting its locale with the following code:

datePicker.locale = [[[NSLocale alloc] initWithLocaleIdentifier:@"es_ES"] autorelease];

The datepicker still appears in English (or whatever language I've set the phone to). Anyone have any idea why this does nothing, or how to fix it?

回答1:

As answered here Can I localize a UIDatePicker?, the picker display depends on country settings, not on language settings.

In your example you are changing the language locale only.

回答2:

Try changing the locale of the UIDatePicker's calendar as well:

NSLocale *locale = [[[NSLocale alloc] initWithLocaleIdentifier:@"es_ES"] autorelease];
datePicker.locale = locale; 
datePicker.calendar = [locale objectForKey:NSLocaleCalendar]; 

来源：https://stackoverflow.com/questions/2648719/uidatepicker-locale-does-nothing