IOS 公共类-MyDateUtil 日期处理Util

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：

#import <Foundation/Foundation.h>
//适用 IOS6+
@interface MyDateUtil

//返回一个新的日期，新的日期将会只保留年月日
+(NSDate*) keepYearMonthDayWithDate:(NSDate*)oldDate;
//返回日期的年份
+(int)getYearWithDate:(NSDate *)date;
//返回日期的月份
+(int) getMonthWithDate:(NSDate*) date;
//返回日期的日份
+(int) getDayWithDate:(NSDate*) date;
//传入年月日，返回日期类型
+(NSDate*) getDateFromYear:(int)year andMonth:(int)month andDay:(int)day;
//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"
+(NSDate*) getDateFromText:(NSString*)dateStr andDateSplit:(NSString*)split;

.m文件：

#import <Foundation/Foundation.h>

@implementation MyDateUtil:NSObject

+(NSDate*) keepYearMonthDayWithDate:(NSDate*)oldDate {
    NSCalendar *oldCal = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    NSDateComponents *oldDateComponents = [oldCal components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:oldDate];
    
    NSDate *result = [oldCal dateFromComponents:oldDateComponents];
    return result;
}

+(int)getYearWithDate:(NSDate *)date {
    NSCalendar *cal = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    NSDateComponents *dateComp = [cal components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:date];
    return dateComp.year;
}

+(int) getMonthWithDate:(NSDate*) date {
    NSCalendar *cal = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    NSDateComponents *dateComp = [cal components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:date];
    return dateComp.month;
}

+(int) getDayWithDate:(NSDate*) date {
    NSCalendar *cal = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    NSDateComponents *dateComp = [cal components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:date];
    return dateComp.day;
}

+(NSDate*) getDateFromYear:(int)year andMonth:(int)month andDay:(int)day {
    NSDateComponents *dateComp = [[NSDateComponents alloc] init];
    dateComp.year = year;
    dateComp.month = month;
    dateComp.day = day;
    NSCalendar *cal = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    NSDate *d = [cal dateFromComponents:dateComp];
    return d;
}

//datestr must like: "dd/MM/yyyy" "01/05/2012"
+(NSDate*) getDateFromText:(NSString*)dateStr andDateSplit:(NSString*)split{
    if (!split) {
        split = @"/";
    }
    NSArray *dateStrArr = [dateStr componentsSeparatedByString:@"/"];
    return [self getDateFromYear:[[dateStrArr objectAtIndex:2] intValue] andMonth:[[dateStrArr objectAtIndex:1] intValue] andDay:[[dateStrArr objectAtIndex:0] intValue]];
}

@end

若要下载，请访问github：https://github.com/cjt321/MyDateUtil

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