A tool class for displaying dates

A tool class for displaying dates

. H file

#import <Foundation/Foundation.h>@interface TimeUtil : NSObject+ (NSString*)getTimeStr1:(long long)time;+(NSString*) getTimeStrStyle1:(long long)time;+ (NSString*)getTimeStr1Short:(long long)time;+(NSString*) getTimeStrStyle2:(long long)time;+(int)dayCountForMonth:(int)month andYear:(int)year;+(BOOL)isLeapYear:(int)year;@end

. M file

# Import "timeutil. H "@ implementation timeutil + (nsstring *) gettimestr :( long) createdat {// calculate distance time string // nsstring * timestamp; time_t now; time (& now ); int distance = (INT) difftime (now, createdat); If (distance <0) distance = 0; If (distance <60) {timestamp = [nsstring stringwithformat: @ "% d % s", distance, (distance = 1 )? "Second ago": "seconds ago"];} else if (distance <60*60) {distance = distance/60; timestamp = [nsstring stringwithformat: @ "% d % s", distance, (distance = 1 )? "Minute ago": "Minutes Ago"];} else if (distance <60*60*24) {distance = distance/60/60; timestamp = [nsstring stringwithformat: @ "% d % s", distance, (distance = 1 )? "Hour ago": "Hours Ago"];} else if (distance <60*60*24*7) {distance = distance/60/60/24; timestamp = [nsstring stringwithformat: @ "% d % s", distance, (distance = 1 )? "Day Ago": "Days Ago"];} else if (distance <60*60*24*7*4) {distance = distance/60/60/24/7; timestamp = [nsstring stringwithformat: @ "% d % s", distance, (distance = 1 )? "Week Ago": "weeks ago"];} else {static nsdateformatter * dateformatter = nil; If (dateformatter = nil) {dateformatter = [[nsdateformatter alloc] init]; [dateformatter setdatestyle: nsdateformatterregular style]; [dateformatter settimestyle: nsdateformatterregular style];} nsdate * Date = [nsdate sequence: createdat]; timestamp = [dateformatter stringfromdate: date];} return timest Amp;} + (nsstring *) gettimestr1 :( long) time {nsdate * Date = [nsdate datewithtimeintervalsince1970: Time]; nscalendar * Calendar = [[nscalendar alloc] callback: nsgregoriancalendar]; nsinteger unitflags = nsmonthcalendarunit | nsdaycalendarunit | nsyearcalendarunit | nshourcalendarunit | nsminutecalendarunit | nssecondcalendarunit; nsdatecomponents * Component = [calendar components: unitflags F Romdate: date]; nsstring * string = [nsstring stringwithformat: @ "% 04d-% 02d-% 02d % 02d: % 02d", [component year], [component month], [component Day], [component hour], [component minute]; return string ;}+ (nsstring *) gettimestr1short :( long) time {nsdate * Date = [nsdate datewithtimeintervalsince1970: time]; nscalendar * Calendar = [[nscalendar alloc] initwithcalendaridentifier: nsgregoriancalendar]; nsinteger UN Itflags = calendar | nsdaycalendarunit | calendar | nshourcalendarunit | calendar | nssecondcalendarunit; nsdatecomponents * Component = [calendar components: unitflags fromdate: date]; nsstring * string = [nsstring stringwithformat: @ "% 04d-% 02d-% 02d", [component year], [component month], [component Day]; return string ;}+ (nsstring *) getmdstr :( long) time {nsdate * Date = [nsdate d Expiration: Time]; nscalendar * Calendar = [[nscalendar alloc] calendar: nsgregoriancalendar]; nsinteger unitflags = calendar | nsdaycalendarunit | nsyearcalendarunit | nshourcalendarunit | calendar | nssecondcalendarunit; nsdatecomponents * Component = [calendar components: unitflags fromdate: date]; nsstring * string = [nsstring stringwithformat: @ "% d month % d day ", [Component month], [component Day]; return string ;}+ (nsdatecomponents *) getcomponent :( long) time {nsdate * Date = [nsdate datewithtimeintervalsince1970: Time]; nscalendar * Calendar = [[nscalendar alloc] calendar: nsgregoriancalendar]; nsinteger unitflags = calendar | nsdaycalendarunit | nsyearcalendarunit | nshourcalendarunit | calendar | nssecondcalendarunit; nsdate Components * Component = [calendar components: unitflags fromdate: date]; return component;} + (nsstring *) gettimestrstyle1 :( long) time {nsdate * Date = [nsdate datewithtimeintervalsince1970: time]; nscalendar * Calendar = [[nscalendar alloc] calendar: nsgregoriancalendar]; nsinteger unitflags = nsmonthcalendarunit | nsdaycalendarunit | nsyearcalendarunit | nshourcalendarunit | Interval Unit | nssecondcalendarunit | nsweekcalendarunit | nsweekdaycalendarunit; nsdatecomponents * Component = [calendar components: unitflags fromdate: date]; int year = [component year]; int month = [component month]; int day = [component Day]; int hour = [component hour]; int minute = [component minute]; nsdate * today = [nsdate date]; Component = [calendar components: unitflags fromdate: Today]; int t_year = [component year]; Nsstring * string = nil; long now = [Today timeintervalsince1970]; long distance = now-time; If (distance <60) [email protected] "just now "; else if (distance <60*60) string = [nsstring stringwithformat: @ "% LLD Minutes Ago", distance/60]; else if (distance <60*60*24) string = [nsstring stringwithformat: @ "% LLD Hours Ago", distance/60/60]; else if (distance <60*60*24*7) string = [nsstring stringwithformat: @ "% LLD days ago", distance/60/60/24]; e LSE if (year = t_year) string = [nsstring stringwithformat: @ "% 02d-% 02d % d: % 02d", month, day, hour, minute]; else string = [nsstring stringwithformat: @ "% d-% d", year, month, day]; return string ;}+ (nsstring *) gettimestrstyle2 :( long) time {nsdate * Date = [nsdate datewithtimeintervalsince1970: Time]; nscalendar * Calendar = [[nscalendar alloc] initwithcalendaridentifier: nsgregoriancalendar]; nsinteger unitflags = Calendar | nsdaycalendarunit | calendar | nshourcalendarunit | calendar | nssecondcalendarunit | nsweekcalendarunit | calendar; nsdatecomponents * Component = [calendar components: unitflags fromdate: date]; int year = [component year]; int month = [component month]; int day = [component Day]; int hour = [component hour]; int minute = [component minute]; int week = [component W Eek]; int weekday = [component weekday]; nsdate * today = [nsdate date]; Component = [calendar components: unitflags fromdate: Today]; int t_year = [component year]; int t_month = [component month]; int t_day = [component Day]; int t_week = [component week]; nsstring * string = nil; if (year = t_year & month = t_month & day = t_day) {If (hour <6 & hour> = 0) string = [nsstring stringwithformat: @ "% d: % 02d", hour, minute]; else if (Hour> = 6 & hour <12) string = [nsstring stringwithformat: @ "% d: % 02d", hour, minute]; else if (hour> = 12 & hour <18) string = [nsstring stringwithformat: @ "% d: % 02d", hour, minute]; else string = [nsstring stringwithformat: @ "% d: % 02d", hour, minute];} else if (year = t_year & week = t_week) {nsstring * daystr = nil; Switch (weekday) {Case 1: [email protected] ""; break; Case 2: [email protected] "1"; break; case 3: [Email protected] "2"; break; Case 4: [email protected] "3"; break; Case 5: [email protected] "4"; break; Case 6: [email protected] "5"; break; Case 7: [email protected] "6"; break; default: break;} string = [nsstring stringwithformat: @ "week % @ % d: % 02d", daystr, hour, minute];} else if (year = t_year) string = [nsstring stringwithformat: @ "% d month % d", month, day]; else string = [nsstring stringwithformat: @ "% d Year % d month % d", ye Ar, month, day]; return string;} + (INT) daycountformonth :( INT) month andyear :( INT) year {If (month = 1 | month = 3 | month = 5 | month = 7 | month = 8 | month = 10 | month = 12) {return 31;} else if (month = 4 | month = 6 | month = 9 | month = 11) {return 30 ;} else if ([self isleapyear: year]) {return 29;} else {return 28 ;}+ (bool) isleapyear :( INT) year {If (Year % 400 = 0) {return yes;} else {If (Year % 4 = 0 & year % 100! = 0) {return yes;} else {return no; }}@ end