Nsdate的各种常用操作

// NVDate.h

// Created by Noval Agung Prayogo on 2/5/14.

#import <Foundation/Foundation.h>

typedef NS_OPTIONS(NSUInteger, NVDayUnit) {

NVDayUnitSunday = 1,

NVDayUnitMonday = 2,

NVDayUnitTuesday = 3,

NVDayUnitWednesday = 4,

NVDayUnitThursday = 5,

NVDayUnitFriday = 6,

NVDayUnitSaturday = 7

};

typedef NS_OPTIONS(NSUInteger, NVMonthUnit) {

NVMonthUnitJanuary = 1,

NVMonthUnitFebruary = 2,

NVMonthUnitMarch = 3,

NVMonthUnitApril = 4,

NVMonthUnitMay = 5,

NVMonthUnitJune = 6,

NVMonthUnitJuly = 7,

NVMonthUnitAugust = 8,

NVMonthUnitSeptember = 9,

NVMonthUnitOctober = 10,

NVMonthUnitNovember = 11,

NVMonthUnitDecember = 12,

};

@interface NVDate : NSObject

- (id)initUsingToday;

- (id)initUsingDate:(NSDate *)date;

- (id)initUsingYear:(NSInteger)year month:(NSInteger)month day:(NSInteger)day;

- (id)initUsingYear:(NSInteger)year month:(NSInteger)month day:(NSInteger)day hour:(NSInteger)hour minute:(NSInteger)minute second:(NSInteger)second;

- (id)initUsingString:(NSString *)stringDate;

- (id)initUsingString:(NSString *)stringDate withFormat:(NSString *)dateFormat;

- (id)initUsingSeconds:(NSInteger)seconds;

- (NSDate *)date;

- (NSString *)stringValue;

- (NSString *)stringValueWithFormat:(NSString *)dateFormat;

- (void)zeroTime;

- (instancetype)previousDay;

- (instancetype)previousDays:(NSInteger)days;

- (instancetype)nextDay;

- (instancetype)nextDays:(NSInteger)days;

- (instancetype)previousWeek;

- (instancetype)previousWeeks:(NSInteger)weeks;

- (instancetype)nextWeek;

- (instancetype)nextWeeks:(NSInteger)weeks;

- (instancetype)previousMonth;

- (instancetype)previousMonths:(NSInteger)months;

- (instancetype)nextMonth;

- (instancetype)nextMonths:(NSInteger)months;

- (instancetype)previousYear;

- (instancetype)previousYears:(NSInteger)years;

- (instancetype)nextYear;

- (instancetype)nextYears:(NSInteger)years;

- (instancetype)firstDayOfMonth;

- (instancetype)lastDayOfMonth;

- (instancetype)firstMonthOfYear;

- (instancetype)lastMonthOfYear;

- (instancetype)previousDayOfDayName:(NVDayUnit)dayUnit;

- (instancetype)nextDayOfDayName:(NVDayUnit)dayUnit;

- (BOOL)isCurrentDayName:(NVDayUnit)dayUnit;

- (BOOL)isCurrentMonthName:(NVMonthUnit)monthUnit;

@property NSString *dateFormatUsingString;

@property NSDateFormatterStyle dateFormatUsingStyle;

@property NSDateFormatterStyle timeFormatUsingStyle;

@property NSInteger year;

@property NSInteger month;

@property (readonly) NSInteger week;

@property NSInteger day;

@property NSInteger hour;

@property NSInteger minute;

@property NSInteger second;

@end

// NVDate.m

// Created by Noval Agung Prayogo on 2/5/14.

#import "NVDate.h"

@implementation NVDate {

NSDateFormatter *_dateFormatter;

NSCalendar *_calendar;

NSDate *_date;

NSCalendarUnit _dateTimeCalendarUnit;

}

- (id)init {

if (self = [super init]) {

_dateFormatter = [[NSDateFormatter alloc] init];

_dateFormatter.dateStyle = NSDateFormatterFullStyle;

_dateFormatter.timeStyle = NSDateFormatterFullStyle;

_calendar = [NSCalendar currentCalendar];

_date = [[NSDate alloc] init];

}

returnself;

}

- (id)initUsingToday {

if (self = [self init]) {

_date = [NSDate date];

}

returnself;

}

- (id)initUsingString:(NSString *)stringDate {

if (self = [self init]) {

_date = [_dateFormatter dateFromString:stringDate];

}

returnself;

}

- (id)initUsingString:(NSString *)stringDate withFormat:(NSString *)dateFormat {

if (self = [self init]) {

_dateFormatter.dateFormat = dateFormat;

_date = [_dateFormatter dateFromString:stringDate];

}

returnself;

}

- (id)initUsingYear:(NSInteger)year month:(NSInteger)month day:(NSInteger)day {

if (self = [self init]) {

NSDateComponents *dateComponents = [[NSDateComponents alloc] init];

dateComponents.year = year;

dateComponents.month = month;

dateComponents.day = day;

_date = [_calendar dateFromComponents:dateComponents];

}

returnself;

}

- (id)initUsingYear:(NSInteger)year month:(NSInteger)month day:(NSInteger)day hour:(NSInteger)hour minute:(NSInteger)minute second:(NSInteger)second {

if (self = [self init]) {

NSDateComponents *dateComponents = [[NSDateComponents alloc] init];

dateComponents.year = year;

dateComponents.month = month;

dateComponents.day = day;

dateComponents.hour = hour;

dateComponents.minute = minute;

dateComponents.second = second;

_date = [_calendar dateFromComponents:dateComponents];

}

returnself;

}

- (id)initUsingDate:(NSDate *)date {

if (self = [self init]) {

_date = date;

}

returnself;

}

- (id)initUsingSeconds:(NSInteger)seconds {

if (self = [self init]) {

_date = [NSDate dateWithTimeIntervalSinceReferenceDate:seconds];

}

returnself;

}

- (NSDate *)date {

return _date;

}

- (NSString *)stringValue {

return [_dateFormatter stringFromDate:_date];

}

- (NSString *)stringValueWithFormat:(NSString *)dateFormat {

NSDateFormatter *localDateFormatter = [_dateFormatter copy];

localDateFormatter.dateFormat = dateFormat;

return [localDateFormatter stringFromDate:_date];

}

- (void)zeroTime {

dateComponents.hour = 0;

dateComponents.minute = 0;

dateComponents.second = 0;

_date = [_calendar dateFromComponents:dateComponents];

}

- (void)setDateFormatUsingString:(NSString *)dateFormatUsingString {

_dateFormatter.dateFormat = dateFormatUsingString;

}

- (NSString *)dateFormatUsingString {

return _dateFormatter.dateFormat;

}

- (void)setDateFormatUsingStyle:(NSDateFormatterStyle)dateFormatUsingStyle {

_dateFormatter.dateStyle = dateFormatUsingStyle;

}

- (NSDateFormatterStyle)dateFormatUsingStyle {

return _dateFormatter.dateStyle;

}

- (void)setTimeFormatUsingStyle:(NSDateFormatterStyle)timeFormatUsingStyle {

_dateFormatter.timeStyle = timeFormatUsingStyle;

}

- (NSDateFormatterStyle)timeFormatUsingStyle {

return _dateFormatter.timeStyle;

}

- (instancetype)daysCalculate:(NSInteger)days isForward:(BOOL)isForward {

NSDateComponents *dateComponents = [[NSDateComponents alloc] init];

dateComponents.day = days * (isForward ? 1 : -1);

_date = [_calendar dateByAddingComponents:dateComponents toDate:_date options:0];

returnself;

}

- (instancetype)previousDay {

return [self previousDays:1];

}

- (instancetype)previousDays:(NSInteger)days {

return [self daysCalculate:days isForward:NO];

}

- (instancetype)nextDay {

return [self nextDays:1];

}

- (instancetype)nextDays:(NSInteger)days {

return [self daysCalculate:days isForward:YES];

}

- (instancetype)weeksCalculate:(NSInteger)weeks isForward:(BOOL)isForward {

NSDateComponents *dateComponents = [[NSDateComponents alloc] init];

dateComponents.day = (7 * weeks) * (isForward ? 1 : -1);

_date = [_calendar dateByAddingComponents:dateComponents toDate:_date options:0];

returnself;

}

- (instancetype)previousWeek {

return [self previousWeeks:1];

}

- (instancetype)previousWeeks:(NSInteger)weeks {

return [self weeksCalculate:weeks isForward:NO];

}

- (instancetype)nextWeek {

return [self nextWeeks:1];

}

- (instancetype)nextWeeks:(NSInteger)weeks {

return [self weeksCalculate:weeks isForward:YES];

}

- (instancetype)monthsCalculate:(NSInteger)months isForward:(BOOL)isForward {

NSDateComponents *dateComponents = [[NSDateComponents alloc] init];

dateComponents.month = months * (isForward ? 1 : -1);

_date = [_calendar dateByAddingComponents:dateComponents toDate:_date options:0];

returnself;

}

- (instancetype)previousMonth {

return [self previousMonths:1];

}

- (instancetype)previousMonths:(NSInteger)months {

return [self monthsCalculate:months isForward:NO];

}

- (instancetype)nextMonth {

return [self nextMonths:1];

}

- (instancetype)nextMonths:(NSInteger)months {

return [self monthsCalculate:months isForward:YES];

}

- (instancetype)yearsCalculate:(NSInteger)years isForward:(BOOL)isForward {

NSDateComponents *dateComponents = [[NSDateComponents alloc] init];

dateComponents.year = years * (isForward ? 1 : -1);

_date = [_calendar dateByAddingComponents:dateComponents toDate:_date options:0];

returnself;

}

- (instancetype)previousYear {

return [self previousYears:1];

}

- (instancetype)previousYears:(NSInteger)years {

return [self yearsCalculate:years isForward:NO];

}

- (instancetype)nextYear {

return [self nextYears:1];

}

- (instancetype)nextYears:(NSInteger)years {

return [self yearsCalculate:years isForward:YES];

}

- (instancetype)firstDayOfMonth {

NSDateComponents *dateComponents = [_calendar components:_dateTimeCalendarUnit fromDate:_date];

dateComponents.day = 1;

_date = [_calendar dateFromComponents:dateComponents];

returnself;

}

- (instancetype)lastDayOfMonth {

NSDateComponents *dateComponents;

NSDate *date;

dateComponents = [_calendar components:_dateTimeCalendarUnit fromDate:_date];

dateComponents.day = 1;

date = [_calendar dateFromComponents:dateComponents];

dateComponents = [[NSDateComponents alloc] init];

dateComponents.month = 1;

date = [_calendar dateByAddingComponents:dateComponents toDate:date options:0];

dateComponents = [[NSDateComponents alloc] init];

dateComponents.day = -1;

_date = [_calendar dateByAddingComponents:dateComponents toDate:date options:0];

returnself;

}

- (instancetype)firstMonthOfYear {

NSDateComponents *dateComponents = [_calendar components:_dateTimeCalendarUnit fromDate:_date];

dateComponents.month = NVMonthUnitJanuary;

_date = [_calendar dateFromComponents:dateComponents];

returnself;

}

- (instancetype)lastMonthOfYear {

NSDateComponents *dateComponents = [_calendar components:_dateTimeCalendarUnit fromDate:_date];

dateComponents.month = NVMonthUnitDecember;

_date = [_calendar dateFromComponents:dateComponents];

returnself;

}

- (instancetype)previousDayOfDayName:(NVDayUnit)dayUnit {

int currentWeekDay = [_calendar components:_dateTimeCalendarUnit fromDate:_date].weekday;

if (currentWeekDay == dayUnit)

return [self previousWeek];

NSDateComponents *dateComponents = [[NSDateComponents alloc] init];

if (currentWeekDay > dayUnit)

dateComponents.day = -(currentWeekDay - dayUnit);

else

dateComponents.day = -currentWeekDay - (7 - dayUnit);

_date = [_calendar dateByAddingComponents:dateComponents toDate:_date options:0];

returnself;

}

- (instancetype)nextDayOfDayName:(NVDayUnit)dayUnit {

int currentWeekDay = [_calendar components:_dateTimeCalendarUnit fromDate:_date].weekday;

if (currentWeekDay == dayUnit)

return [self nextWeek];

NSDateComponents *dateComponents = [[NSDateComponents alloc] init];

if (currentWeekDay < dayUnit)

dateComponents.day = dayUnit - currentWeekDay;

else

dateComponents.day = -currentWeekDay + dayUnit;

_date = [_calendar dateByAddingComponents:dateComponents toDate:_date options:0];

returnself;

}

- (BOOL)isCurrentDayName:(NVDayUnit)dayUnit {

return ([_calendar components:_dateTimeCalendarUnit fromDate:_date].weekday == dayUnit);

}

- (BOOL)isCurrentMonthName:(NVMonthUnit)monthUnit {

return ([_calendar components:_dateTimeCalendarUnit fromDate:_date].month == monthUnit);

}

- (NSInteger)year {

return [_calendar components:_dateTimeCalendarUnit fromDate:_date].year;

}

- (void)setYear:(NSInteger)year {

NSDateComponents *components = [_calendar components:_dateTimeCalendarUnit fromDate:_date];

components.year = year;

_date = [_calendar dateFromComponents:components];

}

- (NSInteger)month {

return [_calendar components:_dateTimeCalendarUnit fromDate:_date].month;

}

- (void)setMonth:(NSInteger)month {

NSDateComponents *components = [_calendar components:_dateTimeCalendarUnit fromDate:_date];

components.month = month;

_date = [_calendar dateFromComponents:components];

}

- (NSInteger)week {

return [_calendar components:_dateTimeCalendarUnit fromDate:_date].week;

}

- (NSInteger)day {

return [_calendar components:_dateTimeCalendarUnit fromDate:_date].day;

}

- (void)setDay:(NSInteger)day {

NSDateComponents *components = [_calendar components:_dateTimeCalendarUnit fromDate:_date];

components.day = day;

_date = [_calendar dateFromComponents:components];

}

- (NSInteger)hour {

return [_calendar components:_dateTimeCalendarUnit fromDate:_date].hour;

}

- (void)setHour:(NSInteger)hour {

NSDateComponents *components = [_calendar components:_dateTimeCalendarUnit fromDate:_date];

components.hour = hour;

_date = [_calendar dateFromComponents:components];

}

- (NSInteger)minute {

return [_calendar components:_dateTimeCalendarUnit fromDate:_date].minute;

}

- (void)setMinute:(NSInteger)minute {

NSDateComponents *components = [_calendar components:_dateTimeCalendarUnit fromDate:_date];

components.minute = minute;

_date = [_calendar dateFromComponents:components];

}

- (NSInteger)second {

return [_calendar components:_dateTimeCalendarUnit fromDate:_date].second;

}

- (void)setSecond:(NSInteger)second {

NSDateComponents *components = [_calendar components:_dateTimeCalendarUnit fromDate:_date];

components.second = second;

_date = [_calendar dateFromComponents:components];

}

@end

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Nsdate的各种常用操作

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