IOS time operations to be updated

IPhone: nsdata year, month, week, day, hour, minute, second acquisition and nsdatatonsstring Method  

Obtain time information in nsdate, year, month, week, day, hour, minute, and second:

Nscalendar * Calendar = [[nscalendar alloc] initwithcalendaridentifier: nsgregoriancalendar];

Nsdate * now;

Nsdatecomponents * comps = [[nsdatecomponents alloc] init];

Nsinteger unitflags = nsyearcalendarunit | nsmonthcalendarunit | nsdaycalendarunit | nsweekdaycalendarunit |

Nshourcalendarunit | nsminutecalendarunit | nssecondcalendarunit;

Now = [nsdate date];

Comps = [calendar components: unitflags fromdate: Now];

Int year = [comps year];

Int week = [comps weekday];

Int month = [comps month];

Int day = [comps Day];

Int hour = [comps hour];

Int min = [comps minute];

Int sec = [comps second];

 

Nsdatatonsstring method:

 

-(Nsstring *) nsdatetonstring :( nsdate *) nsdate {

// Nsstring * string = [nsdate descriptionwithcalendarformat: @ "% Y/% m/% d % H: % m: % s" timezone: Nil locale: Nil]; this method has APIs. Do not use this method if you want to upload an app.

Nsdateformatter * FMt = [[nsdateformatter alloc] init] autorelease];

[FMT setdateformat: @ "yyyy/mm/dd hh: mm: SS"];

Nsstring * string = [FMT stringfromdate: nsdate];

Return string;

}