Objective-C 中的模糊日期算法

Objective-C中的模糊日期算法

objective-c
// 获取当前日期和时间
NSDate *currentDate = [NSDate date];
// 创建一个NSCalendar对象
NSCalendar *calendar = [NSCalendar currentCalendar];
// 获取当前日期和时间的年、月、日、时、分、秒等信息
NSDateComponents *components = [calendar components:NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond fromDate:currentDate];
// 获取当前日期的年、月、日
NSInteger year = [components year];
NSInteger month = [components month];
NSInteger day = [components day];
// 获取当前时间的时、分、秒
NSInteger hour = [components hour];
NSInteger minute = [components minute];
NSInteger second = [components second];
// 生成模糊日期描述
NSString *fuzzyDate = @"";
if (year < 0 || month < 0 || day < 0) {
    fuzzyDate = @"未知时间";
} else if (year == 0 && month == 0 && day == 0 && hour == 0 && minute == 0 && second <= 60) {
    fuzzyDate = @"刚刚";
} else if (year == 0 && month == 0 && day == 0 && hour == 0 && minute <= 5) {
    fuzzyDate = @"几分钟前";
} else if (year == 0 && month == 0 && day == 0 && hour == 0 && minute <= 60) {
    fuzzyDate = @"1小时内";
} else if (year == 0 && month == 0 && day == 0 && hour <= 24) {
    fuzzyDate = @"今天";
} else if (year == 0 && month == 0 && day <= 2) {
    fuzzyDate = @"昨天";
} else if (year == 0 && month == 0 && day <= 7) {
    fuzzyDate = @"1周内";
} else if (year == 0 && month == 0) {
    fuzzyDate = @"1个月内";
} else if (year == 0) {
    fuzzyDate = @"1年内";
} else {
    fuzzyDate = @"很久以前";
}
// 输出模糊日期描述
NSLog(@"模糊日期描述：%@", fuzzyDate);