55 lines
1.9 KiB
Objective-C
55 lines
1.9 KiB
Objective-C
#import "DateUtil.h"
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#define ONE_DAY_TIME_INTERVAL (double)60*60*24
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#define ONE_WEEK_TIME_INTERVAL (double)60*60*24*7
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static NSString *const DATE_FORMAT_WEEKDAY = @"EEEE";
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@implementation DateUtil
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+ (NSDateFormatter *)dateFormatter {
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NSDateFormatter *formatter = [NSDateFormatter new];
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[formatter setLocale:[NSLocale currentLocale]];
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[formatter setTimeStyle:NSDateFormatterNoStyle];
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[formatter setDateStyle:NSDateFormatterShortStyle];
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return formatter;
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}
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+ (NSDateFormatter *)weekdayFormatter {
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NSDateFormatter *formatter = [NSDateFormatter new];
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[formatter setLocale:[NSLocale currentLocale]];
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[formatter setDateFormat:DATE_FORMAT_WEEKDAY];
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return formatter;
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}
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+ (NSDateFormatter *)timeFormatter {
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NSDateFormatter *formatter = [NSDateFormatter new];
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[formatter setLocale:[NSLocale currentLocale]];
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[formatter setTimeStyle:NSDateFormatterShortStyle];
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[formatter setDateStyle:NSDateFormatterNoStyle];
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return formatter;
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}
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+ (BOOL)dateIsOlderThanOneDay:(NSDate *)date {
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return [[NSDate date] timeIntervalSinceDate:date] > ONE_DAY_TIME_INTERVAL;
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}
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+ (BOOL)dateIsOlderThanOneWeek:(NSDate *)date {
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return [[NSDate date] timeIntervalSinceDate:date] > ONE_WEEK_TIME_INTERVAL;
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}
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+ (BOOL)date:(NSDate *)date isEqualToDateIgnoringTime:(NSDate *)anotherDate{
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static const unsigned componentFlags = (NSCalendarUnitYear| NSCalendarUnitMonth | NSCalendarUnitDay);
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NSDateComponents *components1 = [[NSCalendar autoupdatingCurrentCalendar] components:componentFlags fromDate:date];
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NSDateComponents *components2 = [[NSCalendar autoupdatingCurrentCalendar] components:componentFlags fromDate:anotherDate];
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return ((components1.year == components2.year) &&
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(components1.month == components2.month) &&
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(components1.day == components2.day));
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}
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+ (BOOL)dateIsToday:(NSDate *)date{
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return [self date:[NSDate date] isEqualToDateIgnoringTime:date];
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}
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@end
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