Question

快速问题我使用以下代码检索两个时间戳之间的差异。会议纪要现在给我0.5小时。我怎么把它变成几分钟（NSInteger格式）？

NSDateFormatter* dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"] autorelease]];
[dateFormatter setDateFormat:@"mm:ss"];
NSDate* firstDate = [dateFormatter dateFromString:@"06:00"];
NSDate* secondDate = [dateFormatter dateFromString:@"17:30"];
NSTimeInterval timeDifference = [secondDate timeIntervalSinceDate:firstDate];

我使用NSInteger来获取整个小时，但无法计算出会议记录......对我来说一定是太晚了： - /

    NSInteger hoursBetweenDates = timeDifference / 60;
NSInteger minutesBetweenDates = ??;

NSLog(@"RAW: %f", timeDifference);
NSLog(@"Hours: %i", hoursBetweenDates);
NSLog(@"Minutes: %i", minutesBetweenDates);

谢谢你们！ :-D

Answer 1

NSTimeInterval以秒为单位。所以分钟是diff / 60.0，小时是diff / 3600.0。

Answer 2

你可以这样做：

NSTimeInterval timeDifference = [secondDate timeIntervalSinceDate:firstDate];
int minute = (int)timeDifference % 3600 / 60;

Xcode时差以分钟为单位失败

2 个答案: