NSDate *now = [NSDate date];
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *comp = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit|NSWeekdayCalendarUnit|NSDayCalendarUnit
fromDate:now];
// 获得星期几// 1(星期天) 2(星期二) 3(星期三) 4(星期四) 5(星期五) 6(星期六) 7(星期天)NSInteger weekDay = [comp weekday];// 获得几号NSInteger day = [comp day];
NSLog(@"weekDay:%ld day:%ld",weekDay,day);
// 计算当前日期和这周的星期一和星期天差的天数long firstDiff,lastDiff;if (weekDay == 1) {
firstDiff = 1;
lastDiff = 0;
}else{
firstDiff = [calendar firstWeekday] - weekDay;
lastDiff = 9 - weekDay;
}
NSLog(@"firstDiff:%ld lastDiff:%ld",firstDiff,lastDiff);
// 在当前日期(去掉了时分秒)基础上加上差的天数NSDateComponents *firstDayComp = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:now];
[firstDayComp setDay:day + firstDiff];
NSDate *firstDayOfWeek= [calendar dateFromComponents:firstDayComp];
NSDateComponents *lastDayComp = [calendar components:NSYearCalendarUnit|NSMonthCalendarUnit|NSDayCalendarUnit fromDate:now];
[lastDayComp setDay:day + lastDiff];
NSDate *lastDayOfWeek= [calendar dateFromComponents:lastDayComp];
NSDateFormatter *formater = [[NSDateFormatter alloc] init];
[formater setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSLog(@"星期一开始 %@",[formater stringFromDate:firstDayOfWeek]);
NSLog(@"当前 %@",[formater stringFromDate:now]);
NSLog(@"星期天结束 %@",[formater stringFromDate:lastDayOfWeek]);