ios 获取时间日期的方法

最新推荐文章于 2023-09-02 08:47:01 发布

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#iOS #获取时间 #获取日期

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本文详细介绍了iOS开发中一个实用的时间工具类，包括获取当前时间、日期格式化、记录号生成等功能，适用于各种时间日期操作需求。

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.h文件
#import <Foundation/Foundation.h>
@interface TimeTool : NSObject
+(NSDateComponents *)getNowTime; //获取当前的时间

+(NSString *)dateOfTodayNoYear; //当天的日期(不包含年份)

///当天的日期 %d年%d月%d日
+(NSString *)dateOfToday;

///当天的日期 %d-%d-%d
+(NSString *)dateOfTodaySimple;

+(NSString *)dateOfThisWeek; //本周的日期

///获取本周的日期数组
+(NSArray *)dateOfThisWeekByNowDay;

+(NSString *)dateOfThisMonth; //本月的日期

///获取本月的日期
+(NSArray *)dateOfThisMonthByNowday;

///生成的记录号年月日时分秒 yyyyMMddHHmmss
+(NSString *)timeForRecord;

///生成的记录号年月日时分秒 yyyy-MM-dd HH:mm:ss
+(NSString *)timeForRecordSecond;

///生成记录号年月日
+(NSString *)timeForRecordYMD;

+(NSString *)year;

+(NSString *)month;

+(NSString *)day;

+(NSInteger )week;

+(NSInteger )hour;

+(NSInteger )minute;

+(NSInteger )second;

+(NSString *)hourAndMinute;

+(NSString *)hourAndMinuteAndSecond;

+(NSString *)yearMonthDayHourMinuteSecond;

.m 文件
+(NSDateComponents *)getNowTime //获取当前的时间
{

NSCalendar *calendar = [[NSCalendar alloc]  //获取当前的时间initWithCalendarIdentifier:NSGregorianCalendar];
NSDate *now = [NSDate date] ;
NSDateComponents *comps1 = [[NSDateComponents alloc] init] ;
NSInteger unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSWeekdayCalendarUnit |
NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit;


comps1 = [calendar components:unitFlags fromDate:now];

return comps1;

}

+(NSString *)dateOfToday //当天的日期
{

NSDateComponents *comps = [GetTimeAll getNowTime];
NSInteger year = [comps year];
NSInteger month = [comps month];
NSInteger day = [comps day];

NSString *TimeOfToday = [NSString stringWithFormat:@"%d年%d月%d日",(int)year,(int)month,(int)day];
return  TimeOfToday;

}

+(NSString *)dateOfTodaySimple
{

NSDateComponents *comps = [GetTimeAll getNowTime];
NSInteger year = [comps year];
NSInteger month = [comps month];
NSInteger day = [comps day];
NSString *TimeOfToday = [NSString stringWithFormat:@"%d-%d-%d",(int)year,(int)month,(int)day];
return  TimeOfToday;

}

+(NSString *)dateOfTodayNoYear //当天的日期
{

NSDateComponents *comps = [GetTimeAll getNowTime];
//    NSInteger week = [comps weekday];
//    NSInteger year = [comps year];
NSInteger month = [comps month];
NSInteger day = [comps day];
//    NSInteger hour = [comps hour];
//    NSInteger min = [comps minute];
//    NSInteger sec = [comps second];


//    NSLog(@"%d年%d月%d日，星期%d",year,month,day,week);
//    NSLog(@"%d点%d分%d秒",hour,min,sec);

NSString *TimeOfToday = [NSString stringWithFormat:@"%d月%d日",(int)month,(int)day];
return  TimeOfToday;

}

+(NSString *)dateOfThisWeek //本周的日期
{

 NSDateComponents *comps = [GetTimeAll getNowTime];
NSInteger week = [comps weekday];
//获取当前的时间
NSDate *now = [NSDate date] ;
//周一的日期
NSDate *mondayDate = [now dateByAddingTimeInterval:-(week-2) *3600 *24 ];
NSDateFormatter *mondayFor = [[NSDateFormatter alloc] init];
[mondayFor setDateFormat:@"MM月,dd日"];
NSString *mondayStr = [mondayFor stringFromDate:mondayDate];
//周日的日期
NSDate *weekDayDate = [now dateByAddingTimeInterval:(7-week +1) *3600 *24 ];
NSDateFormatter *weekDayFor = [[NSDateFormatter alloc] init];
[weekDayFor setDateFormat:@"MM月,dd日"];
NSString *weekDayStr = [weekDayFor stringFromDate:weekDayDate];

NSString *weekDateStr = [NSString stringWithFormat:@"%@--%@",mondayStr,weekDayStr];
 //    NSLog(@"weekDateStr = %@",weekDateStr);
return weekDateStr;

}

///获取本周的日期数组
+(NSArray *)dateOfThisWeekByNowDay
{

NSDateComponents *comps = [GetTimeAll getNowTime];
NSInteger week = [comps weekday];
//获取当前的时间
NSDate *now = [NSDate date] ;


if (week > 1 && week <= 7) {
    week = week - 1;
}else
{
    week = 7;
}

NSDateFormatter *mondayFor = [[NSDateFormatter alloc] init];
[mondayFor setDateFormat:@"MM-dd"];

//周1的日期
NSDate *weekDate1 = [now dateByAddingTimeInterval:(7-week -6) *3600 *24 ];
NSString *weekStr1 = [mondayFor stringFromDate:weekDate1];

//周2的日期
NSDate *weekDate2 = [now dateByAddingTimeInterval:(7-week -5) *3600 *24 ];
NSString *weekStr2 = [mondayFor stringFromDate:weekDate2];

//周2的日期
NSDate *weekDate3 = [now dateByAddingTimeInterval:(7-week -4) *3600 *24 ];
NSString *weekStr3 = [mondayFor stringFromDate:weekDate3];

//周2的日期
NSDate *weekDate4 = [now dateByAddingTimeInterval:(7-week -3) *3600 *24 ];
NSString *weekStr4 = [mondayFor stringFromDate:weekDate4];

//周2的日期
NSDate *weekDate5 = [now dateByAddingTimeInterval:(7-week -2) *3600 *24 ];
NSString *weekStr5 = [mondayFor stringFromDate:weekDate5];

//周2的日期
NSDate *weekDate6 = [now dateByAddingTimeInterval:(7-week -1) *3600 *24 ];
NSString *weekStr6 = [mondayFor stringFromDate:weekDate6];

//周2的日期
NSDate *weekDate7 = [now dateByAddingTimeInterval:(7-week) *3600 *24 ];
NSString *weekStr7 = [mondayFor stringFromDate:weekDate7];

NSMutableArray *WeekArr = [NSMutableArray arrayWithObjects:weekStr1,weekStr2,weekStr3,weekStr4,weekStr5,weekStr6,weekStr7, nil];

[WeekArr replaceObjectAtIndex:week - 1 withObject:@"今天"];


return [NSArray arrayWithArray:WeekArr];

}

+(NSString *)dateOfThisMonth //本月的日期
{

NSDate *now = [NSDate date] ; //获取当前的时间

NSDateComponents *comps = [GetTimeAll getNowTime];

NSInteger month = [comps month];
NSInteger day = [comps day];
NSInteger year = [comps year];

//1号的日期
NSDate *onedayDate = [now dateByAddingTimeInterval:-(day-1) *3600 *24 ];
NSDateFormatter *onedayFor = [[NSDateFormatter alloc] init];
[onedayFor setDateFormat:@"MM月,dd日"];
NSString *onedayStr = [onedayFor stringFromDate:onedayDate];


//30号的日期
if (month == 1||month == 3 || month == 5 ||month == 7 || month == 8 || month == 10 || month == 12) {
    NSDate *lastdayDate = [now dateByAddingTimeInterval:(31 - day) *3600 *24 ];
    NSDateFormatter *lastdayFor = [[NSDateFormatter alloc] init];
    [lastdayFor setDateFormat:@"MM月,dd日"];
    NSString *lastdayStr = [lastdayFor stringFromDate:lastdayDate];
   
     NSString *monDateStr = [NSString stringWithFormat:@"%@--%@",onedayStr,lastdayStr];
    return monDateStr;
}else if(month == 2)
{
    if ((year%4 == 0&&year%100 !=0) || year%400 ==0) {        //闰年
        NSDate *lastdayDate = [now dateByAddingTimeInterval:(29 - day) *3600 *24 ];
        NSDateFormatter *lastdayFor = [[NSDateFormatter alloc] init];
        [lastdayFor setDateFormat:@"MM月,dd日"];
        NSString *lastdayStr = [lastdayFor stringFromDate:lastdayDate];

       
        NSString *monDateStr = [NSString stringWithFormat:@"%@--%@",onedayStr,lastdayStr];
        return monDateStr;

    }else
    {
        NSDate *lastdayDate = [now dateByAddingTimeInterval:(28 - day) *3600 *24 ];
        NSDateFormatter *lastdayFor = [[NSDateFormatter alloc] init];
        [lastdayFor setDateFormat:@"MM月,dd日"];
        NSString *lastdayStr = [lastdayFor stringFromDate:lastdayDate];

       
        NSString *monDateStr = [NSString stringWithFormat:@"%@--%@",onedayStr,lastdayStr];
        return monDateStr;
    }
}else
{
    NSDate *lastdayDate = [now dateByAddingTimeInterval:(30 - day) *3600 *24 ];
    NSDateFormatter *lastdayFor = [[NSDateFormatter alloc] init];
    [lastdayFor setDateFormat:@"MM月,dd日"];
    NSString *lastdayStr = [lastdayFor stringFromDate:lastdayDate];
   
    NSString *monDateStr = [NSString stringWithFormat:@"%@--%@",onedayStr,lastdayStr];
    return monDateStr;
}

}

///获取本月的日期
+(NSArray *)dateOfThisMonthByNowday
{

//获取当前的时间
NSDate *now = [NSDate date] ;

NSDateComponents *comps = [GetTimeAll getNowTime];

NSInteger month = [comps month];
NSInteger day = [comps day];
NSInteger year = [comps year];

NSDateFormatter *onedayFor = [[NSDateFormatter alloc] init];
[onedayFor setDateFormat:@"dd"];
NSMutableArray *dateArr = [[NSMutableArray alloc] init];


//30号的日期
if (month == 1||month == 3 || month == 5 ||month == 7 || month == 8 || month == 10 || month == 12) {
    for (int i = 30; i >= 0; i--) {
        NSDate *lastdayDate = [now dateByAddingTimeInterval:(31 - day - i) *3600 *24 ];
        NSString *dayStr = [onedayFor stringFromDate:lastdayDate];
        [dateArr addObject:dayStr];
    }
   
    [dateArr replaceObjectAtIndex:day - 1 withObject:@"今\n天"];
   
}else if(month == 2)
{
    if ((year%4 == 0&&year%100 !=0) || year%400 ==0) {        //闰年
       
        for (int i = 28; i >=0 ; i--) {
            NSDate *lastdayDate = [now dateByAddingTimeInterval:(29 - day - i) *3600 *24 ];
            NSString *lastdayStr = [onedayFor stringFromDate:lastdayDate];
            [dateArr addObject:lastdayStr];
        }
        [dateArr replaceObjectAtIndex:day - 1 withObject:@"今\n天"];
       
    }else
    {
        for (int i = 27; i >= 0; i--) {
            NSDate *lastdayDate = [now dateByAddingTimeInterval:(28 - day - i) *3600 *24 ];
            NSString *lastdayStr = [onedayFor stringFromDate:lastdayDate];
            [dateArr addObject:lastdayStr];
        }
        [dateArr replaceObjectAtIndex:day - 1 withObject:@"今\n天"];
       
    }
}else
{
    for (int i = 29; i >=0 ; i--) {
        NSDate *lastdayDate = [now dateByAddingTimeInterval:(30 - day - i) *3600 *24 ];
        NSString *lastdayStr = [onedayFor stringFromDate:lastdayDate];
        [dateArr addObject:lastdayStr];
    }
   
        [dateArr replaceObjectAtIndex:day - 1 withObject:@"今天"];
}
return [NSArray arrayWithArray:dateArr];;

}

+(NSString *)timeForRecord
{

NSString *timeStr = nil;
NSDate *now = [NSDate date] ;
NSDateFormatter *onedayFor = [[NSDateFormatter alloc] init];
[onedayFor setDateFormat:@"yyyyMMddHHmmss"];
timeStr = [onedayFor stringFromDate:now];
return timeStr;

}

+(NSString *)timeForRecordSecond
{

NSString *timeStr = nil;
NSDate *now = [NSDate date] ;
NSDateFormatter *onedayFor = [[NSDateFormatter alloc] init];
[onedayFor setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
timeStr = [onedayFor stringFromDate:now];
return timeStr;

}

+(NSString *)timeForRecordYMD
{

NSString *timeStr = nil;
NSDate *now = [NSDate date] ;
NSDateFormatter *onedayFor = [[NSDateFormatter alloc] init];
[onedayFor setDateFormat:@"yyMMdd"];
timeStr = [onedayFor stringFromDate:now];
return timeStr;

}

+(NSString *)year;
{

NSString *timeStr = nil;
NSDate *now = [NSDate date] ;
NSDateFormatter *onedayFor = [[NSDateFormatter alloc] init];
[onedayFor setDateFormat:@"yyyy"];
timeStr = [onedayFor stringFromDate:now];
return timeStr;

}

+(NSString *)month
{

NSString *timeStr = nil;
NSDate *now = [NSDate date] ;
NSDateFormatter *onedayFor = [[NSDateFormatter alloc] init];
[onedayFor setDateFormat:@"MM"];
timeStr = [onedayFor stringFromDate:now];
return timeStr;

}

+(NSString *)day
{

NSString *timeStr = nil;
NSDate *now = [NSDate date] ;
NSDateFormatter *onedayFor = [[NSDateFormatter alloc] init];
[onedayFor setDateFormat:@"dd"];
timeStr = [onedayFor stringFromDate:now];
return timeStr;

}

+(NSInteger )week
{

NSDateComponents *comps = [GetTimeAll getNowTime];
NSInteger week = [comps week];
return week;

}

+(NSInteger )hour
{

NSDateComponents *comps = [GetTimeAll getNowTime];
NSInteger hour = [comps hour];
return hour;

}

+(NSInteger )minute
{

NSDateComponents *comps = [GetTimeAll getNowTime];
NSInteger minute = [comps minute];
return minute;

}

+(NSInteger )second
{

NSDateComponents *comps = [GetTimeAll getNowTime];
NSInteger second = [comps second];
return second;

}

+(NSString *)hourAndMinute
{

NSDateComponents *comps = [GetTimeAll getNowTime];
NSInteger hour = [comps hour];

NSDateComponents *comps1 = [GetTimeAll getNowTime];
NSInteger minute = [comps1 minute];

NSString *hourAndMinute = [NSString stringWithFormat:@"%d点%d分",(int)hour,(int)minute];

return hourAndMinute;

}

+(NSString *)hourAndMinuteAndSecond
{

NSDateComponents *comps = [GetTimeAll getNowTime];
NSInteger hour = [comps hour];

NSDateComponents *comps1 = [GetTimeAll getNowTime];
NSInteger minute = [comps1 minute];

NSDateComponents *comps2 = [GetTimeAll getNowTime];
NSInteger second = [comps2 second];

NSString *hourAndMinuteAndSecond = [NSString stringWithFormat:@"%d:%d:%d",(int)hour,(int)minute,(int)second];

return hourAndMinuteAndSecond;

}

+(NSString *)yearMonthDayHourMinuteSecond
{

NSDateComponents *comps1 = [GetTimeAll getNowTime];
NSInteger year = [comps1 year];

NSDateComponents *comps2 = [GetTimeAll getNowTime];
NSInteger month = [comps2 month];

NSDateComponents *comps3 = [GetTimeAll getNowTime];
NSInteger day = [comps3 day];

NSDateComponents *comps4 = [GetTimeAll getNowTime];
NSInteger hour = [comps4 hour];

NSDateComponents *comps5 = [GetTimeAll getNowTime];
NSInteger minute = [comps5 minute];

NSDateComponents *comps6 = [GetTimeAll getNowTime];
NSInteger second = [comps6 second];

NSString *str = [NSString stringWithFormat:@"%d%d%d%d%d%d",(int)year,(int)month,(int)day,(int)hour,(int)minute,(int)second];

return str;

}