iOS获取周一到周天七天日期和对应的星期几

//获取本周七天日期
-(NSMutableArray *)latelyEightTime{
    NSMutableArray *weekArr = [[NSMutableArray alloc] init];
    NSDate *nowDate = [NSDate date];
    NSCalendar *calendar = [NSCalendar currentCalendar];
    NSDateComponents *comp = [calendar components:NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitWeekday  fromDate:nowDate];
    // 获取今天是周几
    NSInteger weekDay = [comp weekday];
    // 获取几天是几号
    NSInteger day = [comp day];
     // 计算当前日期和本周的星期一和星期天相差天数
    long first,last;
    if (weekDay == 1){
        first = -6;
        last = 0;
    }
    else{
        first = [calendar firstWeekday] - weekDay + 1;
        last = 8 - weekDay;
    }
       NSDateComponents *baseDayComp = [calendar components:NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay  fromDate:nowDate];
    //获取周一日期
    [baseDayComp setDay:day + first];
    NSDate *firstDayOfWeek = [calendar dateFromComponents:baseDayComp];
    //计算从周一开始的七天日期
    for (int i = 0; i < 7; i ++) {
        //从现在开始的24小时
        NSTimeInterval secondsPerDay = i * 24*60*60;
        NSDate *curDate = [NSDate dateWithTimeInterval:secondsPerDay sinceDate:firstDayOfWeek];
        NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
        [dateFormatter setDateFormat:@"M.d"];
        NSString *dateStr = [dateFormatter stringFromDate:curDate];//几月几号
        NSDateFormatter *weekFormatter = [[NSDateFormatter alloc] init];
       [weekFormatter setDateFormat:@"EEEE"];//星期几 @"HH:mm 'on' EEEE MMMM d"];
        NSString *weekStr = [weekFormatter stringFromDate:dateStr];
        NSString *chinaStr = [self theWeek:weekStr];
        NSString *strTime = [NSString stringWithFormat:@"%@%@",dateStr，chinaStr];
        NSLog(@"%@",strTime);
        [weekArr addObject:strTime];
    }
    return weekArr;
}

//转换英文为中文
-(NSString *)theWeek:(NSString *)theWeek{
    NSString *Str;
    if(theWeek){
        if([theWeek isEqualToString:@"Monday"]){
            Str = @"星期一";
        }else if([theWeek isEqualToString:@"Tuesday"]){
            Str = @"星期二";
        }else if([theWeek isEqualToString:@"Wednesday"]){
            Str = @"星期三";
        }else if([theWeek isEqualToString:@"Thursday"]){
            Str = @"星期四";
        }else if([theWeek isEqualToString:@"Friday"]){
            Str = @"星期五";
        }else if([theWeek isEqualToString:@"Saturday"]){
            Str = @"星期六";
        }else if([theWeek isEqualToString:@"Sunday"]){
            Str = @"星期日";
        }
    }
    return Str;
}