Question

我的应用程序有一个聊天组件，用户可以直接与客户服务代表交谈，我想确保在办公时间内通知用户他们是否请求帮助。

办公时间是从上午9点到晚上7点。

这是我当前的代码，如果办公室已关闭，但它无法正常工作，则会向用户显示通知。

- (void)checkOfficeHours {

//set opening hours date
NSDateComponents *openingTime = [[NSDateComponents alloc] init];
openingTime.hour = 9;
openingTime.minute = 0;

//set closing time hours
NSDateComponents *closingTime = [[NSDateComponents alloc] init];
closingTime.hour = 19;
closingTime.minute = 0;

//get the pst time from local time
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
dateFormatter.dateFormat=@"hh:mm";
NSDate *currentDate = [NSDate date];
NSTimeZone *pstTimeZone = [NSTimeZone timeZoneWithAbbreviation:@"PST"];
dateFormatter.timeZone = pstTimeZone;
NSString *pstTimeString = [dateFormatter stringFromDate:currentDate];

//convert pst date string back to date
NSDate *now = [dateFormatter dateFromString:pstTimeString];

//create the current date component
NSDateComponents *currentTime = [[NSCalendar currentCalendar] components:NSCalendarUnitHour|NSCalendarUnitMinute|NSCalendarUnitSecond fromDate:now];

//sort the array by times
NSMutableArray *times = [@[openingTime, closingTime, currentTime] mutableCopy];
[times sortUsingComparator:^NSComparisonResult(NSDateComponents *t1, NSDateComponents *t2) {
    if (t1.hour > t2.hour) {
        return NSOrderedDescending;
    }

    if (t1.hour < t2.hour) {
        return NSOrderedAscending;
    }
    // hour is the same
    if (t1.minute > t2.minute) {
        return NSOrderedDescending;
    }

    if (t1.minute < t2.minute) {
        return NSOrderedAscending;
    }
    // hour and minute are the same
    if (t1.second > t2.second) {
        return NSOrderedDescending;
    }

    if (t1.second < t2.second) {
        return NSOrderedAscending;
    }
    return NSOrderedSame;

}];

//if the current time is in between (index == 1) then its during office hours
if ([times indexOfObject:currentTime] == 1) {
    NSLog(@"We are Open!");
    self.officeHoursView.hidden = YES;
} else {
    NSLog(@"Sorry, we are closed!");
    self.officeHoursView.hidden = NO;
}

}

Answer 1

如果你关心的是它目前是在太平洋标准时间上午9点到晚上7点之间，你可以比这更容易做到。只需在PST中获取当前时间的hour，然后查看结果的NSTimeZone *pst = [NSTimeZone timeZoneWithName:@"PST"]; NSDateComponents *pstComponentsForNow = [[NSCalendar currentCalendar] componentsInTimeZone:pst fromDate:[NSDate date]]; if ((pstComponentsForNow.hour >= 9) && (pstComponentsForNow.hour <= 19)) { NSLog(@"Open"); } else { NSLog(@"Closed"); }属性。

NSDateComponents

如果您还关心星期几或其他详细信息，请查看AAA BBB CCC DDD的其他属性。

将本地NSDate时间与PST时间运行时间进行比较

1 个答案: