IOS 公共类-MyDateUtil 日期处理Util
此为处理日期的公共类。适用IOS6+
.h文件：
1 #import <Foundation/Foundation.h> 2 //适用 IOS6+ 3 @interface MyDateUtil 4 5 //返回一个新的日期，新的日期将会只保留年月日 6 +(NSDate*) keepYearMonthDayWithDate:(NSDate*)oldDate; 7 //返回日期的年份 8 +(int)getYearWithDate:(NSDate *)date; 9 //返回日期的月份 10 +(int) getMonthWithDate:(NSDate*) date; 11 //返回日期的日份 12 +(int) getDayWithDate:(NSDate*) date; 13 //传入年月日，返回日期类型 14 +(NSDate*) getDateFromYear:(int)year andMonth:(int)month andDay:(int)day; 15 //传入一个日期的字符串，一个日期字符串的分隔符，返回日期。 默认为"/"，即传入"01/05/2012"和"/"，返回日期类型。 "dd/MM/yyyy" "01/05/2012" 16 +(NSDate*) getDateFromText:(NSString*)dateStr andDateSplit:(NSString*)split;
.m文件：
1 #import <Foundation/Foundation.h> 2 3 @implementation MyDateUtil:NSObject 4 5 +(NSDate*) keepYearMonthDayWithDate:(NSDate*)oldDate { 6 NSCalendar *oldCal = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; 7 NSDateComponents *oldDateComponents = [oldCal components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:oldDate]; 8 9 NSDate *result = [oldCal dateFromComponents:oldDateComponents]; 10 return result; 11 } 12 13 +(int)getYearWithDate:(NSDate *)date { 14 NSCalendar *cal = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; 15 NSDateComponents *dateComp = [cal components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:date]; 16 return dateComp.year; 17 } 18 19 +(int) getMonthWithDate:(NSDate*) date { 20 NSCalendar *cal = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; 21 NSDateComponents *dateComp = [cal components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:date]; 22 return dateComp.month; 23 } 24 25 +(int) getDayWithDate:(NSDate*) date { 26 NSCalendar *cal = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; 27 NSDateComponents *dateComp = [cal components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:date]; 28 return dateComp.day; 29 } 30 31 +(NSDate*) getDateFromYear:(int)year andMonth:(int)month andDay:(int)day { 32 NSDateComponents *dateComp = [[NSDateComponents alloc] init]; 33 dateComp.year = year; 34 dateComp.month = month; 35 dateComp.day = day; 36 NSCalendar *cal = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; 37 NSDate *d = [cal dateFromComponents:dateComp]; 38 return d; 39 } 40 41 //datestr must like: "dd/MM/yyyy" "01/05/2012" 42 +(NSDate*) getDateFromText:(NSString*)dateStr andDateSplit:(NSString*)split{ 43 if (!split) { 44 split = @"/"; 45 } 46 NSArray *dateStrArr = [dateStr componentsSeparatedByString:@"/"]; 47 return [self getDateFromYear:[[dateStrArr objectAtIndex:2] intValue] andMonth:[[dateStrArr objectAtIndex:1] intValue] andDay:[[dateStrArr objectAtIndex:0] intValue]]; 48 } 49 50 @end
若要下载，请访问github：https://github.com/cjt321/MyDateUtil
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alunchen
