天循环中的整数在所有天中继续重复

Question

我已经尝试多次更改我的函数，使 NSDates 的 day/end 开始，我知道循环正在工作，因为它打印出一周中的正确日期，但是 start_timestamp 和 end_timestamp 由于某种原因，每天都显示相同的内容。它必须是涉及 int 不改变的东西或者与我没有看到的逻辑没有直接关系的东西：

这是打印出来的内容：

WEEK_ARRAY:{
    Friday =     {
        "DAY_END" = 1454389199;
        "DAY_START" = 1454302800;
    };
    Monday =     {
        "DAY_END" = 1454389199;
        "DAY_START" = 1454302800;
    };
    Saturday =     {
        "DAY_END" = 1454389199;
        "DAY_START" = 1454302800;
    };
    Sunday =     {
        "DAY_END" = 1454389199;
        "DAY_START" = 1454302800;
    };
    Thursday =     {
        "DAY_END" = 1454389199;
        "DAY_START" = 1454302800;
    };
    Tuesday =     {
        "DAY_END" = 1454389199;
        "DAY_START" = 1454302800;
    };
    Wednesday =     {
        "DAY_END" = 1454389199;
        "DAY_START" = 1454302800;
    };
}

逻辑如下：

- (NSMutableDictionary *)lastSevenDays {
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"EEEE"];

    NSDate *date = [NSDate date];
    NSMutableDictionary *weekDays = [[NSMutableDictionary alloc] init];
    for (int i = 0; i <7; i++) {
        NSString *weekDay = [formatter stringFromDate:date];
        date = [self dateByAddingOneDayFromDate:date];
        NSMutableDictionary *specificDayDict=[[NSMutableDictionary alloc]init];

        NSDate *StartNSDate=[self beginningOfDay:date];

        NSNumber *StartTstamp=[NSNumber numberWithInt:[self convertNSDateToTimestamp:StartNSDate]];


        int endOfDay=[self convertNSDateToTimestamp:[self endOfDay:date]];

        NSLog(@"DAY:%@ | DAY_START:%@ | DAY_END:%d",weekDay,StartTstamp,endOfDay);

        [specificDayDict setValue:StartTstamp forKey:@"DAY_START"];
        [specificDayDict setValue:[NSNumber numberWithInt:endOfDay] forKey:@"DAY_END"];
        [weekDays setObject:specificDayDict forKey:weekDay];
    }
    return weekDays;
}
- (NSDate *)dateByAddingOneDayFromDate:(NSDate *)date {
    NSCalendar *cal = [NSCalendar currentCalendar];

    NSDateComponents *plusOneDay = [[NSDateComponents alloc] init];
    [plusOneDay setDay:+1];
    NSDate *newDate = [cal dateByAddingComponents:plusOneDay
                                           toDate:date
                                          options:NSWrapCalendarComponents];
    return newDate;
}

-(NSDate *)beginningOfDay:(NSDate *)date
{
    NSCalendar *cal = [NSCalendar currentCalendar];
    NSDateComponents *components = [cal components:( NSMonthCalendarUnit | NSYearCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit ) fromDate:date];

    [components setHour:0];
    [components setMinute:0];
    [components setSecond:0];

    return [cal dateFromComponents:components];

}

-(NSDate *)endOfDay:(NSDate *)date
{
    NSCalendar *cal = [NSCalendar currentCalendar];
    NSDateComponents *components = [cal components:( NSMonthCalendarUnit | NSYearCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit | NSSecondCalendarUnit ) fromDate:date];

    [components setHour:23];
    [components setMinute:59];
    [components setSecond:59];

    return [cal dateFromComponents:components];

}

-(NSDate *)convertTimestampToNSDate:(int)timestamp{

    NSDate* date = [NSDate dateWithTimeIntervalSince1970:timestamp];

    return date;
}
-(int )convertNSDateToTimestamp:(NSDate *)date{

    int timestamp=[date timeIntervalSince1970];
    return timestamp;
}

Answer 1

原因是 beginningOfDay 和 endOfDay 方法中都缺少 NSDayCalendarUnit 组件。

Answer 2

在 beginningOfDay 和 endOfDay 函数中，您错过了 NSCalendarUnitDay。 ios8.

中也弃用了 NSMonthCalendarUnit、NSYearCalendarUnit

-(NSDate *)beginningOfDay:(NSDate *)date{
NSCalendar *cal = [NSCalendar currentCalendar];
NSDateComponents *components = [cal components:( NSCalendarUnitMonth | NSCalendarUnitYear | NSCalendarUnitDay| NSCalendarUnitHour  | NSCalendarUnitMinute | NSCalendarUnitSecond) fromDate:date];

[components setHour:0];
[components setMinute:0];
[components setSecond:0];

return [cal dateFromComponents:components];

}

-(NSDate *)endOfDay:(NSDate *)date{
NSCalendar *cal = [NSCalendar currentCalendar];
NSDateComponents *components = [cal components:( NSCalendarUnitMonth | NSCalendarUnitYear | NSCalendarUnitDay| NSCalendarUnitHour  | NSCalendarUnitMinute | NSCalendarUnitSecond) fromDate:date];

[components setHour:23];
[components setMinute:59];
[components setSecond:59];

return [cal dateFromComponents:components];

}

天循环中的整数在所有天中继续重复

Ints in loop of days continues to repeat for all days

int

objective-c

nsdate

nsnumber

ios