NSDateFormatter NSDateFormatterMediumStyle example ios

NSDateFormatterStyle - NSDateFormatterMediumStyle

The following constants specify predefined format styles for dates and times.

typedef enum {
   NSDateFormatterNoStyle     = kCFDateFormatterNoStyle,
   NSDateFormatterShortStyle  = kCFDateFormatterShortStyle,
   NSDateFormatterMediumStyle = kCFDateFormatterMediumStyle,
   NSDateFormatterLongStyle   = kCFDateFormatterLongStyle,
   NSDateFormatterFullStyle   = kCFDateFormatterFullStyle
} NSDateFormatterStyle;

Constants

NSDateFormatterNoStyle

Specifies no style.

Equal to kCFDateFormatterNoStyle.

NSDateFormatterShortStyle

Specifies a short style, typically numeric only, such as “11/23/37” or “3:30pm”.

Equal to kCFDateFormatterShortStyle.

NSDateFormatterMediumStyle

Specifies a medium style, typically with abbreviated text, such as “Nov 23, 1937”.

Equal to kCFDateFormatterMediumStyle.

NSDateFormatterLongStyle

Specifies a long style, typically with full text, such as “November 23, 1937” or “3:30:32pm”.

Equal to kCFDateFormatterLongStyle.

NSDateFormatterFullStyle

Specifies a full style with complete details, such as “Tuesday, April 12, 1952 AD” or “3:30:42pm PST”.

Equal to kCFDateFormatterFullStyle.

Discussion

The format for these date and time styles is not exact because they depend on the locale, user preference settings, and the operating system version. Do not use these constants if you want an exact format.

Example of [NSDateFormatter NSDateFormatterMediumStyle]

NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatter setDateStyle:NSDateFormatterMediumStyle];
[dateFormatter setTimeStyle:NSDateFormatterNoStyle];
[dateFormatter setLocale:[NSLocale currentLocale]];
NSDate *date = [NSDate date];
NSString *dateString = [dateFormatter stringFromDate:date];

Example of [NSDateFormatter NSDateFormatterMediumStyle]

- (NSString*) humanRelativeDateAndTimeAlt: (NSDate*) date;
{

NSDateFormatter* relativeDateFormatter = [[NSDateFormatter alloc] init];
[relativeDateFormatter setLocale: [NSLocale autoupdatingCurrentLocale]];
[relativeDateFormatter setTimeStyle:NSDateFormatterNoStyle]; // no time for this formatter
[relativeDateFormatter setDateStyle:NSDateFormatterMediumStyle];
[dateFormatter setDoesRelativeDateFormatting:YES]; // relative dates

NSString* datePart = [[self relativeDateFormatter] stringFromDate:date];

NSDateFormatter* timeDateFormatter = [[NSDateFormatter alloc] init];
[timeDateFormatter setLocale:[NSLocale autoupdatingCurrentLocale]];
[timeDateFormatter setDateStyle: NSDateFormatterNoStyle]; // no date for this formatter
[timeDateFormatter setTimeStyle: NSDateFormatterShortStyle]; // does respect 12/24 hour setting

NSString* timePart = [timeDateFormatter stringFromDate:date];

int skipZero = 0;  // extra code to remove leading zero if present 
if ([[timePart substringToIndex:1] isEqualToString:@"0"]) skipZero = 1;

[relativeDateFormater release];
[timeDateFormatter release];

return [NSString stringWithFormat:@"%@ %@", datePart, [timePart substringFromIndex:skipZero]];
}

Example of [NSDateFormatter NSDateFormatterMediumStyle]

-(NSString *) stringFromDate:(NSDate *) date{

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];

[dateFormatter setTimeStyle:NSDateFormatterShortStyle];
[dateFormatter setDateStyle:NSDateFormatterMediumStyle];

[dateFormatter setLocale:[NSLocale currentLocale]];

NSString *dateString = [dateFormatter stringFromDate:date];

[dateFormatter release];

return dateString;

}