时间的比较

来源：互联网发布：mac的airplay在哪里编辑：程序博客网时间：2024/05/01 07:45

-(NSString *)DisplayInterval:(NSDate *)date {

NSCalendar *localCalendar = [NSCalendar currentCalendar];

[localCalendar setTimeZone: [NSTimeZone systemTimeZone]];

NSUInteger unitFlags = NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit | NSHourCalendarUnit | NSMinuteCalendarUnit;

NSDateComponents *components = [localCalendar components: unitFlags fromDate:date toDate: [NSDate date] options: 0]; NSInteger years = [components year];

NSInteger months = [components month];

NSInteger days = [components day];

if ((years == 0) && (months == 0) && (days == 0)) {

NSInteger hours = [components hour];

NSInteger mins = [components minute];

if ((hours == 0) && (mins == 0)) {

return @"现在"; } else if (hours == 0) {

return [NSString stringWithFormat: @"%d分钟前", mins];

} else {

return [NSString stringWithFormat: @"%d小时前", hours];

} } else if ((years == 0) && (months == 0) && (days == 1)) {

NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];

[dateFormat setDateFormat: @"yyyy-MM-dd HH:mm"];

NSString *dateString = [dateFormat stringFromDate: date];

return [NSString stringWithFormat: @"昨天 %@", [[dateString substringFromIndex: 11] substringToIndex: 5]];

} else if ((years == 0) && (months == 0) && (days == 2)) {

NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];

[dateFormat setDateFormat: @"yyyy-MM-dd HH:mm"];

NSString *dateString = [dateFormat stringFromDate: date];

return [NSString stringWithFormat: @"前天 %@", [[dateString substringFromIndex: 11] substringToIndex: 5]];

} else {

NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];

[dateFormat setDateFormat: @"yyyy-MM-dd HH:mm"];

return [dateFormat stringFromDate: date]; } }

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