代码可能有点乱 不过应该不影响使用  这些应该基本上能满足大部分用户对于时间的处理需求

DateTimeHelper.h文件

#import <Foundation/Foundation.h>

DateTimeHelper : NSObject

//时间戳转化成字符串格式日期 YYYY-MM-dd HH:mm

+(NSString*)dateTimeFromTimesp:(double)timeStamp;

//时间戳转化成字符串格式日期 YYYY-MM-dd HH:mm:ss

+(NSString*)dateTimeFromTimesp1:(double)timeStamp;

//时间戳转化成字符串格式日期 YYYY-MM-dd

+(NSString*)dateTimeFromTimespEx:(double)timeStamp;

//时间戳转化成字符串格式日期 YYYY年MM月dd日 ss时mm分

+(NSString*)dateTimeFromTimespNYR:(double)timeStamp;

//将时间戳转化成double

+(double)dateToTimesp:(NSDate*)aDate;

//获取当前日期是 几号

+(NSString*)currentDay;

//相对时间 N年N月N日后的日期     -数可以表示n年前的日期

+ (NSString *)relativeTime:(NSString *)dateStr years:(NSInteger)years month:(NSInteger)month day:(NSInteger)day;

//将秒处理成格式化的时间

+ (NSString *)getDateFormatWithStringSeconds:(NSString *)timerStr;

//获取当前系统时间格式化 参数为一个格式YYYY-MM-dd HH:mm:ss;  返回的格式和这个保持一致

+(NSString*)getCurrentSystemTime:(NSString*)formart;

//获取当前网络时间时间(中国)并转换成年月日分开 返回只根据需要自己修改

+(NSString*)getTimeSegment;

//将时间格式格式化成字符串《=》nsdate 转换成需要的string

+(NSString *)getStringFromDate:(NSDate*)inputDate format:(NSString *)format;

+ (NSTimeInterval)getDateWithReferenceRetureIntervalFrom1970:(NSString *)reference format:(NSString *)format;

//传入一个格式化过得字符串 返回与当前时间的间隔（ 秒）  reference 为  时间字符串 参数为一个reference字符串的 格式根据需要自己填写（YYYY-MM-dd HH:mm:ss）;

+ (NSTimeInterval)getDateWithReferenceRetureIntervalToNow:(NSString *)reference format:(NSString *)format;

//返回一个 NSTimeInterval 秒计算    刚刚   1分钟前 还是一周前.. +(NSString *)getTimeString:(NSTimeInterval)time;

 

 

 

DateTimeHelper.m文件

#import "DateTimeHelper.h"

#define vision [[[UIDevice currentDevice]systemVersion] integerValue]<8.0

@implementation DateTimeHelper

//时间戳转化成字符串格式日期

+(NSString*)dateTimeFromTimesp:(double)timeStamp {     NSDateFormatter *formatter = [[NSDateFormatter alloc] init];     [formatter setDateStyle:NSDateFormatterMediumStyle];     [formatter setTimeStyle:NSDateFormatterShortStyle];     [formatter setDateFormat:@"yyyy-MM-dd HH:mm"]; // ----------设置你想要的格式,hh与HH的区别:分别表示12小时制,24小时制     NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:timeStamp];     NSString *confromTimespStr = [formatter stringFromDate:confromTimesp];     return confromTimespStr; } +(NSString*)dateTimeFromTimesp1:(double)timeStamp {     NSDateFormatter *formatter = [[NSDateFormatter alloc] init];     [formatter setDateStyle:NSDateFormatterMediumStyle];     [formatter setTimeStyle:NSDateFormatterShortStyle];     [formatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"]; // ----------设置你想要的格式,hh与HH的区别:分别表示12小时制,24小时制     NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:timeStamp];     NSString *confromTimespStr = [formatter stringFromDate:confromTimesp];     return confromTimespStr; } //时间戳转化成字符串格式日期 YYYY-MM-dd +(NSString*)dateTimeFromTimespEx:(double)timeStamp {     NSDateFormatter *formatter = [[NSDateFormatter alloc] init];     [formatter setDateStyle:NSDateFormatterMediumStyle];     [formatter setTimeStyle:NSDateFormatterShortStyle];     [formatter setDateFormat:@"yyyy-MM-dd"]; // ----------设置你想要的格式,hh与HH的区别:分别表示12小时制,24小时制     NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:timeStamp];     NSString *confromTimespStr = [formatter stringFromDate:confromTimesp];     return confromTimespStr; }

//时间戳转化成字符串格式日期 YYYY年MM月dd日 ss时mm分

+(NSString*)dateTimeFromTimespNYR:(double)timeStamp {     NSDateFormatter *formatter = [[NSDateFormatter alloc] init];     [formatter setDateStyle:NSDateFormatterMediumStyle];     [formatter setTimeStyle:NSDateFormatterShortStyle];     [formatter setDateFormat:@"yyyy年MM月dd 23时59分"]; // ----------设置你想要的格式,hh与HH的区别:分别表示12小时制,24小时制     NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:timeStamp];     NSString *confromTimespStr = [formatter stringFromDate:confromTimesp];     return confromTimespStr; }

+(double)dateToTimesp:(NSDate*)aDate

{     NSDateFormatter *formatter = [[NSDateFormatter alloc] init];     [formatter setDateStyle:NSDateFormatterMediumStyle];     [formatter setTimeStyle:NSDateFormatterShortStyle];     [formatter setDateFormat:@"yyyy-MM-dd"];     return [aDate timeIntervalSince1970]; //    时间转时间戳的方法: //    NSString *timeSp = [NSString stringWithFormat:@"%ld", (long)[aDate timeIntervalSince1970]]; }

//获取当前日期是 几号

+(NSString*)currentDay {     //获取当前时间     NSDate *now = [NSDate date];   //  NSLog(@"now date is: %@", now);          NSCalendar *calendar = [NSCalendar currentCalendar];     NSUInteger unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit;     NSDateComponents *dateComponent = [calendar components:unitFlags fromDate:now];     int day = (int)[dateComponent day];     return [NSString stringWithFormat:@"%d", day]; //    int year = [dateComponent year]; //    int month = [dateComponent month]; //    int hour = [dateComponent hour]; //    int minute = [dateComponent minute]; //    int second = [dateComponent second]; } //相对时间 N年N月N日后的日期     -数可以表示n年前的日期 + (NSString *)relativeTime:(NSString *)dateStr years:(NSInteger)years month:(NSInteger)month day:(NSInteger)day{          NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];     [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];     NSDate *date1 = [dateFormatter dateFromString:dateStr];     NSLog(@"%@", date1);          NSDateComponents * components = [[NSDateComponents alloc] init];     components.year = years;     components.month = month;     components.day = day;     NSCalendar * calendar = [NSCalendar currentCalendar];          //NSDate * currentDate = [NSDate date];     NSDate * nextData = [calendar dateByAddingComponents:components toDate:date1 options:NSCalendarMatchStrictly];     NSDateFormatter * formatter = [[NSDateFormatter alloc] init];          formatter.dateFormat = @"yyyy-MM-dd HH:mm:ss";     NSString * str = [formatter stringFromDate:nextData];     NSLog(@"%@",str);     return str; }

//将字符串秒处理成格式化的时间

+ (NSString *)getDateFormatWithStringSeconds:(NSString *)timerStr {     //转化为Double     double t = [timerStr doubleValue];     //计算出距离1970的NSDatereference     NSDate *date = [NSDate dateWithTimeIntervalSince1970:t];     //转化为 时间格式化字符串     NSDateFormatter *df = [[NSDateFormatter alloc] init];     df.dateFormat = @"yyyy-MM-dd HH:mm:ss";     //转化为 时间字符串     return [df stringFromDate:date]; }

//获取当前系统时间格式化过得

+(NSString*)getCurrentSystemTime:(NSString *)formart{              NSDate * senddate=[NSDate date];         NSDateFormatter *dateformatter=[[NSDateFormatter alloc] init];     if(formart.length==0||formart==nil){         [dateformatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];     }else{         [dateformatter setDateFormat:formart];     }     NSString * locationString=[dateformatter stringFromDate:senddate];     //  NSLog(@"locationString:%@",locationString);     return locationString; }

//获取当前时间并转换成年月日分开

+(NSArray*)getTimeSegment{

        NSCalendar *calendar=nil;

        NSInteger unitFlags=0; //        if(vision){ //            calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar]; //     //            NSInteger unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSWeekdayCalendarUnit | //     //            NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit; //        }else{             calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian];                  unitFlags = NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitWeekday |             NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond;         //}         NSDate *now=[NSDate date];         NSDateComponents *comps = [[NSDateComponents alloc] init];         comps = [calendar components:unitFlags fromDate:now];         NSInteger year=[comps year];         NSInteger month = [comps month];         NSInteger day = [comps day];         NSInteger hour = [comps hour];         NSInteger min = [comps minute];         NSInteger sec = [comps second];         //返回的 数组         NSArray *ary=@[@(year),@(month),@(day),@(hour),@(min),@(sec)];        // NSLog(@"--%ld-%ld-%ld %ld:%ld:%ld",year,month,day,hour,min,sec);         // return [NSString stringWithFormat:@"%ld-%ld-%ld %ld:%ld:%ld",year,month,day,hour,min,sec];     return ary; }  //将时间格式格式化成字符串 +(NSString *)getStringFromDate:(NSDate*)inputDate format:(NSString *)format{         NSDateFormatter *outputFormatter = [[NSDateFormatter alloc] init];        // [outputFormatter setLocale:[NSLocale currentLocale]];         [outputFormatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"]];         if(format.length==0||format==nil){             [outputFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];         }else{             [outputFormatter setDateFormat:format];         }         [outputFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];         NSString *str = [outputFormatter stringFromDate:inputDate];         //NSLog(@"testDate:%@", str);       return str; }

传入一个格式化过得字符串 返回  一个时间字符串与1970年的（ 秒）

+ (NSTimeInterval)getDateWithReferenceRetureIntervalFrom1970:(NSString *)reference format:(NSString *)format{     //将字符串转换成时间格式 一下获取的全部是北京时间     NSDateFormatter *inputFormatter = [[NSDateFormatter alloc] init];     [inputFormatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"]];     if(format.length==0||format==nil){         [inputFormatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];     }else{         [inputFormatter setDateFormat:format];     }     //[inputFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss.0"];     NSDate* inputDate = [inputFormatter dateFromString:reference];     // NSLog(@"date = %@",inputDate);          //获取两个时间之间的间隔     //NSDate *now=[NSDate date];     NSTimeInterval secondsBetweenDates=[inputDate timeIntervalSince1970];     //[now timeIntervalSinceDate:inputDate];      //NSLog(@"秒=  %lf",secondsBetweenDates);     return secondsBetweenDates; }

//传入一个格式化过得字符串 返回   一个时间字符串与当前时间的间隔（ 秒）

+ (NSTimeInterval)getDateWithReferenceRetureIntervalToNow:(NSString *)reference format:(NSString *)format{     //将字符串转换成时间格式 一下获取的全部是北京时间     /*      传入的时间字符串 20150208010203  则[inputFormatter setDateFormat:@"yyyyMMddHHmmss"];      传入的时间字符串 2015-02-08 01:02:03  则[inputFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];      */     NSDateFormatter *inputFormatter = [[NSDateFormatter alloc] init];     [inputFormatter setLocale:[[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"]];     if(format.length==0||format==nil){         [inputFormatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];     }else{         [inputFormatter setDateFormat:format];     }   //  [inputFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss.0"];     NSDate* inputDate = [inputFormatter dateFromString:reference];     // NSLog(@"date = %@",inputDate);          //获取两个时间之间的间隔     NSDate *now=[NSDate date];     NSTimeInterval secondsBetweenDates= [now timeIntervalSinceDate:inputDate];    // NSLog(@"secondsBetweenDates=  %lf",secondsBetweenDates);     return secondsBetweenDates; } //返回一个字符串 刚刚   1分钟前 ... +(NSString *)getTimeString:(NSTimeInterval)segmentTime{     NSInteger allTime=segmentTime;          NSInteger year=60*60*24*365;     NSInteger month = 60*60*24*30;     NSInteger day = 60*60*24;     NSInteger hour = 60*60;     NSInteger min = 60;     NSString *str=nil;     if (allTime<min) {         str=[NSString stringWithFormat:@"刚刚"];             }else if (allTime<hour){         str=[NSString stringWithFormat:@"%ld分之前",allTime/min];

    }else if (allTime<day){

        str=[NSString stringWithFormat:@"%ld小时之前",allTime/hour];              }else if (allTime<month){         str=[NSString stringWithFormat:@"%ld天之前",allTime/day];              }else if (allTime<year){         str=[NSString stringWithFormat:@"%ld月之前",allTime/month];              }else{          str=[NSString stringWithFormat:@"%ld年之前",allTime/year];     }     //NSLog(@"%@",str);     return str; }

 

@end