// // NSDate+RQExtension.m // RQCommon // // Created by 张嵘 on 2018/11/23. // Copyright © 2018 张嵘. All rights reserved. // #import "NSDate+RQExtension.h" #define DATE_COMPONENTS (NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond | NSCalendarUnitWeekOfMonth | NSCalendarUnitWeekOfYear | NSCalendarUnitWeekday | NSCalendarUnitWeekdayOrdinal) #define CURRENT_CALENDAR [NSCalendar currentCalendar] @implementation NSDate (RQExtension) /** * 是否为今天 */ - (BOOL)rq_isToday { NSCalendar *calendar = [NSCalendar currentCalendar]; int unit = NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear; // 1.获得当前时间的年月日 NSDateComponents *nowCmps = [calendar components:unit fromDate:[NSDate date]]; // 2.获得self的年月日 NSDateComponents *selfCmps = [calendar components:unit fromDate:self]; return (selfCmps.year == nowCmps.year) && (selfCmps.month == nowCmps.month) && (selfCmps.day == nowCmps.day); } /** * 是否为昨天 */ - (BOOL)rq_isYesterday { // 2014-05-01 NSDate *nowDate = [[NSDate date] rq_dateWithYMD]; // 2014-04-30 NSDate *selfDate = [self rq_dateWithYMD]; // 获得nowDate和selfDate的差距 NSCalendar *calendar = [NSCalendar currentCalendar]; NSDateComponents *cmps = [calendar components:NSCalendarUnitDay fromDate:selfDate toDate:nowDate options:0]; return cmps.day == 1; } - (NSDate *)rq_dateWithYMD { NSDateFormatter *fmt = [[NSDateFormatter alloc] init]; fmt.dateFormat = @"yyyy-MM-dd"; NSString *selfStr = [fmt stringFromDate:self]; return [fmt dateFromString:selfStr]; } /** * 是否为今年 */ - (BOOL)rq_isThisYear { NSCalendar *calendar = [NSCalendar currentCalendar]; int unit = NSCalendarUnitYear; // 1.获得当前时间的年月日 NSDateComponents *nowCmps = [calendar components:unit fromDate:[NSDate date]]; // 2.获得self的年月日 NSDateComponents *selfCmps = [calendar components:unit fromDate:self]; return nowCmps.year == selfCmps.year; } // This hard codes the assumption that a week is 7 days - (BOOL) rq_isSameWeekWithAnotherDate: (NSDate *)anotherDate { NSDateComponents *components1 = [CURRENT_CALENDAR components:DATE_COMPONENTS fromDate:self]; NSDateComponents *components2 = [CURRENT_CALENDAR components:DATE_COMPONENTS fromDate:anotherDate]; // Must be same week. 12/31 and 1/1 will both be week "1" if they are in the same week if (components1.weekOfMonth != components2.weekOfMonth) return NO; // Must have a time interval under 1 week. Thanks @aclark return (fabs([self timeIntervalSinceDate:anotherDate]) < RQ_D_WEEK); } /** * 星期几 */ - (NSString *)rq_weekDay { NSArray *weekDays = @[@"星期日",@"星期一",@"星期二",@"星期三",@"星期四",@"星期五",@"星期六"]; NSDateComponents *components = [CURRENT_CALENDAR components:DATE_COMPONENTS fromDate:self]; // NSLog(@"NSCalendarUnitWeekday-- components.weekday = %zd -- components.weekdayOrdinal = %zd -- components.weekOfYear = %zd -- components.weekOfMonth = %zd",components.weekday , components.weekdayOrdinal , components.weekOfYear , components.weekOfMonth); return weekDays[components.weekday - 1]; } - (BOOL) rq_isThisWeek { return [self rq_isSameWeekWithAnotherDate:[NSDate date]]; } /** * 通过一个时间 固定的时间字符串 "2016-8-10 14:43:45" 返回时间 * * @param timestamp 固定的时间字符串 "2016-8-10 14:43:45" * * @return 时间 */ + (instancetype)rq_dateWithTimestamp:(NSString *)timestamp { return [[NSDateFormatter rq_defaultDateFormatter] dateFromString:timestamp]; } /** * 返回固定的 当前时间 2016-8-10 14:43:45 */ + (NSString *)rq_currentTimestamp { return [[NSDateFormatter rq_defaultDateFormatter] stringFromDate:[NSDate date]]; } /** * 格式化日期描述 */ - (NSString *)rq_formattedDateDescription { NSDateFormatter *dateFormatter = nil; NSString *result = nil; if ([self rq_isThisYear]) { // 今年 if ([self rq_isToday]) { // 22:22 dateFormatter = [NSDateFormatter rq_dateFormatterWithFormat:@"HH:mm"]; }else if ([self rq_isYesterday]){ // 昨天 22:22 dateFormatter = [NSDateFormatter rq_dateFormatterWithFormat:@"昨天 HH:mm"]; }else if ([self rq_isThisWeek]){ // 星期二 22:22 dateFormatter = [NSDateFormatter rq_dateFormatterWithFormat:[NSString stringWithFormat:@"%@ HH:mm" , [self rq_weekDay]]]; }else{ // 2016年08月18日 22:22 dateFormatter = [NSDateFormatter rq_dateFormatterWithFormat:@"yyyy年MM月dd日 HH:mm"]; } }else{ // 非今年 dateFormatter = [NSDateFormatter rq_dateFormatterWithFormat:@"yyyy年MM月dd日"]; } result = [dateFormatter stringFromDate:self]; return result; } /** 与当前时间的差距 */ - (NSDateComponents *)rq_deltaWithNow { NSCalendar *calendar = [NSCalendar currentCalendar]; int unit = NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond; return [calendar components:unit fromDate:self toDate:[NSDate date] options:0]; } + (BOOL)isBetweenFromHour:(NSInteger)fromHour toHour:(NSInteger)toHour { NSDate *dateFrom = [NSDate getCustomDateWithHour:fromHour]; NSDate *dateTo = [NSDate getCustomDateWithHour:toHour]; NSDate *currentDate = [NSDate date]; if ([currentDate compare:dateFrom]==NSOrderedDescending && [currentDate compare:dateTo]==NSOrderedAscending) { NSLog(@"该时间在 %ld:00-%ld:00 之间！", (long)fromHour, (long)toHour); return YES; } return NO; } + (NSDate *)getCustomDateWithHour:(NSInteger)hour { //获取当前时间 NSDate *currentDate = [NSDate date]; NSCalendar *currentCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian]; NSDateComponents *currentComps = [[NSDateComponents alloc] init]; NSInteger unitFlags = NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitWeekday | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond; currentComps = [currentCalendar components:unitFlags fromDate:currentDate]; //设置当天的某个点 NSDateComponents *resultComps = [[NSDateComponents alloc] init]; [resultComps setYear:[currentComps year]]; [resultComps setMonth:[currentComps month]]; [resultComps setDay:[currentComps day]]; [resultComps setHour:hour]; NSCalendar *resultCalendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSCalendarIdentifierGregorian]; return [resultCalendar dateFromComponents:resultComps]; } //////////// MVC&MVVM的商品的发布时间的描述 //////////// - (NSString *)rq_string_yyyy_MM_dd { return [self rq_string_yyyy_MM_dd:[NSDate date]]; } - (NSString *)rq_string_yyyy_MM_dd:(NSDate *)toDate { // 设置日期格式（声明字符串里面每个数字和单词的含义） // E:星期几 // M:月份 // d:几号(这个月的第几天) // H:24小时制的小时 // m:分钟 // s:秒 // y:年 // fmt.dateFormat = @"EEE MMM dd HH:mm:ss Z yyyy"; NSDateFormatter *fmt = [[NSDateFormatter alloc] init]; // 真机调试，转换这种欧美时间，需要设置locale fmt.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"]; // fmt.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"]; // fmt.locale = [NSLocale currentLocale]; // 由于小闲肉使用的是北京时间，需要减掉8小时时差(转为欧美时间体系) NSDate *fromDate = [NSDate dateWithTimeIntervalSince1970:(self.timeIntervalSince1970 - 8*60*60)]; // 日历对象（方便比较两个日期之间的差距） NSCalendar *calendar = [NSCalendar currentCalendar]; // NSCalendarUnit枚举代表想获得哪些差值 NSCalendarUnit unit = NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond; // 计算两个日期之间的差值 NSDateComponents *cmps = [calendar components:unit fromDate:fromDate toDate:toDate options:0]; if (cmps.year == 0) { // 今年 if (cmps.year == 0 && cmps.month == 0 && cmps.day == 1) { // 昨天 // fmt.dateFormat = @"昨天 HH:mm"; fmt.dateFormat = @"MM-dd HH:mm"; return [fmt stringFromDate:fromDate]; } else if (cmps.year == 0 && cmps.month == 0 && cmps.day == 0) { // 今天 if (cmps.hour >= 1) { return [NSString stringWithFormat:@"%d小时前", (int)cmps.hour]; } else if (cmps.minute >= 1) { return [NSString stringWithFormat:@"%d分钟前", (int)cmps.minute]; } else { return @"刚刚"; } } else { // 今年的其他日子 fmt.dateFormat = @"MM-dd HH:mm"; return [fmt stringFromDate:fromDate]; } } else { // 非今年 fmt.dateFormat = @"yyyy-MM-dd HH:mm"; return [fmt stringFromDate:fromDate]; } } //////////// MVC&MVVM的商品的发布时间的描述 //////////// @end