NSDate+Extension.m 18 KB

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  1. //
  2. // NSDate+Extension.m
  3. // iOS-Categories (https://github.com/shaojiankui/iOS-Categories)
  4. //
  5. // Created by Jakey on 15/4/25.
  6. // Copyright (c) 2015年 www.skyfox.org. All rights reserved.
  7. // https://github.com/632840804/HYBNSDateExtension
  8. #import "NSDate+Extension.h"
  9. @implementation NSDate (Extension)
  10. - (NSUInteger)day {
  11. return [NSDate day:self];
  12. }
  13. - (NSUInteger)month {
  14. return [NSDate month:self];
  15. }
  16. - (NSUInteger)year {
  17. return [NSDate year:self];
  18. }
  19. - (NSUInteger)hour {
  20. return [NSDate hour:self];
  21. }
  22. - (NSUInteger)minute {
  23. return [NSDate minute:self];
  24. }
  25. - (NSUInteger)second {
  26. return [NSDate second:self];
  27. }
  28. + (NSUInteger)day:(NSDate *)date {
  29. NSCalendar *calendar = [NSCalendar currentCalendar];
  30. #if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0
  31. // NSDayCalendarUnit
  32. NSDateComponents *dayComponents = [calendar components:(NSCalendarUnitDay) fromDate:date];
  33. #else
  34. NSDateComponents *dayComponents = [calendar components:(NSDayCalendarUnit) fromDate:date];
  35. #endif
  36. return [dayComponents day];
  37. }
  38. + (NSUInteger)month:(NSDate *)date {
  39. NSCalendar *calendar = [NSCalendar currentCalendar];
  40. #if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0
  41. // NSDayCalendarUnit
  42. NSDateComponents *dayComponents = [calendar components:(NSCalendarUnitMonth) fromDate:date];
  43. #else
  44. NSDateComponents *dayComponents = [calendar components:(NSMonthCalendarUnit) fromDate:date];
  45. #endif
  46. return [dayComponents month];
  47. }
  48. + (NSUInteger)year:(NSDate *)date {
  49. NSCalendar *calendar = [NSCalendar currentCalendar];
  50. #if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0
  51. // NSDayCalendarUnit
  52. NSDateComponents *dayComponents = [calendar components:(NSCalendarUnitYear) fromDate:date];
  53. #else
  54. NSDateComponents *dayComponents = [calendar components:(NSYearCalendarUnit) fromDate:date];
  55. #endif
  56. return [dayComponents year];
  57. }
  58. + (NSUInteger)hour:(NSDate *)date {
  59. NSCalendar *calendar = [NSCalendar currentCalendar];
  60. #if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0
  61. // NSDayCalendarUnit
  62. NSDateComponents *dayComponents = [calendar components:(NSCalendarUnitHour) fromDate:date];
  63. #else
  64. NSDateComponents *dayComponents = [calendar components:(NSHourCalendarUnit) fromDate:date];
  65. #endif
  66. return [dayComponents hour];
  67. }
  68. + (NSUInteger)minute:(NSDate *)date {
  69. NSCalendar *calendar = [NSCalendar currentCalendar];
  70. #if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0
  71. // NSDayCalendarUnit
  72. NSDateComponents *dayComponents = [calendar components:(NSCalendarUnitMinute) fromDate:date];
  73. #else
  74. NSDateComponents *dayComponents = [calendar components:(NSMinuteCalendarUnit) fromDate:date];
  75. #endif
  76. return [dayComponents minute];
  77. }
  78. + (NSUInteger)second:(NSDate *)date {
  79. NSCalendar *calendar = [NSCalendar currentCalendar];
  80. #if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0
  81. // NSDayCalendarUnit
  82. NSDateComponents *dayComponents = [calendar components:(NSCalendarUnitSecond) fromDate:date];
  83. #else
  84. NSDateComponents *dayComponents = [calendar components:(NSSecondCalendarUnit) fromDate:date];
  85. #endif
  86. return [dayComponents second];
  87. }
  88. - (NSUInteger)daysInYear {
  89. return [NSDate daysInYear:self];
  90. }
  91. + (NSUInteger)daysInYear:(NSDate *)date {
  92. return [self isLeapYear:date] ? 366 : 365;
  93. }
  94. - (BOOL)isLeapYear {
  95. return [NSDate isLeapYear:self];
  96. }
  97. + (BOOL)isLeapYear:(NSDate *)date {
  98. NSUInteger year = [date year];
  99. if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) {
  100. return YES;
  101. }
  102. return NO;
  103. }
  104. - (NSString *)formatYMD {
  105. return [NSDate formatYMD:self];
  106. }
  107. + (NSString *)formatYMD:(NSDate *)date {
  108. return [NSString stringWithFormat:@"%lu-%02lu-%02lu",(unsigned long)[date year],(unsigned long)[date month], (unsigned long)[date day]];
  109. }
  110. - (NSUInteger)weeksOfMonth {
  111. return [NSDate weeksOfMonth:self];
  112. }
  113. + (NSUInteger)weeksOfMonth:(NSDate *)date {
  114. return [[date lastdayOfMonth] weekOfYear] - [[date begindayOfMonth] weekOfYear] + 1;
  115. }
  116. - (NSUInteger)weekOfYear {
  117. return [NSDate weekOfYear:self];
  118. }
  119. + (NSUInteger)weekOfYear:(NSDate *)date {
  120. NSUInteger i;
  121. NSUInteger year = [date year];
  122. NSDate *lastdate = [date lastdayOfMonth];
  123. for (i = 1;[[lastdate dateAfterDay:-7 * i] year] == year; i++) {
  124. }
  125. return i;
  126. }
  127. - (NSDate *)dateAfterDay:(NSUInteger)day {
  128. return [NSDate dateAfterDate:self day:day];
  129. }
  130. + (NSDate *)dateAfterDate:(NSDate *)date day:(NSInteger)day {
  131. NSCalendar *calendar = [NSCalendar currentCalendar];
  132. NSDateComponents *componentsToAdd = [[NSDateComponents alloc] init];
  133. [componentsToAdd setDay:day];
  134. NSDate *dateAfterDay = [calendar dateByAddingComponents:componentsToAdd toDate:date options:0];
  135. return dateAfterDay;
  136. }
  137. - (NSDate *)dateAfterMonth:(NSUInteger)month {
  138. return [NSDate dateAfterDate:self month:month];
  139. }
  140. + (NSDate *)dateAfterDate:(NSDate *)date month:(NSInteger)month {
  141. NSCalendar *calendar = [NSCalendar currentCalendar];
  142. NSDateComponents *componentsToAdd = [[NSDateComponents alloc] init];
  143. [componentsToAdd setMonth:month];
  144. NSDate *dateAfterMonth = [calendar dateByAddingComponents:componentsToAdd toDate:date options:0];
  145. return dateAfterMonth;
  146. }
  147. - (NSDate *)begindayOfMonth {
  148. return [NSDate begindayOfMonth:self];
  149. }
  150. + (NSDate *)begindayOfMonth:(NSDate *)date {
  151. return [self dateAfterDate:date day:-[date day] + 1];
  152. }
  153. - (NSDate *)lastdayOfMonth {
  154. return [NSDate lastdayOfMonth:self];
  155. }
  156. + (NSDate *)lastdayOfMonth:(NSDate *)date {
  157. NSDate *lastDate = [self begindayOfMonth:date];
  158. return [[lastDate dateAfterMonth:1] dateAfterDay:-1];
  159. }
  160. - (NSUInteger)daysAgo {
  161. return [NSDate daysAgo:self];
  162. }
  163. + (NSUInteger)daysAgo:(NSDate *)date {
  164. NSCalendar *calendar = [NSCalendar currentCalendar];
  165. #if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0
  166. NSDateComponents *components = [calendar components:(NSCalendarUnitDay)
  167. fromDate:date
  168. toDate:[NSDate date]
  169. options:0];
  170. #else
  171. NSDateComponents *components = [calendar components:(NSDayCalendarUnit)
  172. fromDate:date
  173. toDate:[NSDate date]
  174. options:0];
  175. #endif
  176. return [components day];
  177. }
  178. - (NSInteger)weekday {
  179. return [NSDate weekday:self];
  180. }
  181. + (NSInteger)weekday:(NSDate *)date {
  182. NSCalendar *gregorian = [[NSCalendar alloc]
  183. initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
  184. NSDateComponents *comps = [gregorian components:(NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear | NSCalendarUnitWeekday) fromDate:date];
  185. NSInteger weekday = [comps weekday];
  186. return weekday;
  187. }
  188. - (NSString *)dayFromWeekday {
  189. return [NSDate dayFromWeekday:self];
  190. }
  191. + (NSString *)dayFromWeekday:(NSDate *)date {
  192. switch([date weekday]) {
  193. case 1:
  194. return @"星期天";
  195. break;
  196. case 2:
  197. return @"星期一";
  198. break;
  199. case 3:
  200. return @"星期二";
  201. break;
  202. case 4:
  203. return @"星期三";
  204. break;
  205. case 5:
  206. return @"星期四";
  207. break;
  208. case 6:
  209. return @"星期五";
  210. break;
  211. case 7:
  212. return @"星期六";
  213. break;
  214. default:
  215. break;
  216. }
  217. return @"";
  218. }
  219. - (BOOL)isSameDay:(NSDate *)anotherDate {
  220. NSCalendar *calendar = [NSCalendar currentCalendar];
  221. NSDateComponents *components1 = [calendar components:(NSCalendarUnitYear
  222. | NSCalendarUnitMonth
  223. | NSCalendarUnitDay)
  224. fromDate:self];
  225. NSDateComponents *components2 = [calendar components:(NSCalendarUnitYear
  226. | NSCalendarUnitMonth
  227. | NSCalendarUnitDay)
  228. fromDate:anotherDate];
  229. return ([components1 year] == [components2 year]
  230. && [components1 month] == [components2 month]
  231. && [components1 day] == [components2 day]);
  232. }
  233. - (BOOL)isToday {
  234. return [self isSameDay:[NSDate date]];
  235. }
  236. - (NSDate *)dateByAddingDays:(NSUInteger)days {
  237. NSDateComponents *c = [[NSDateComponents alloc] init];
  238. c.day = days;
  239. return [[NSCalendar currentCalendar] dateByAddingComponents:c toDate:self options:0];
  240. }
  241. /**
  242. * Get the month as a localized string from the given month number
  243. *
  244. * @param month The month to be converted in string
  245. * [1 - January]
  246. * [2 - February]
  247. * [3 - March]
  248. * [4 - April]
  249. * [5 - May]
  250. * [6 - June]
  251. * [7 - July]
  252. * [8 - August]
  253. * [9 - September]
  254. * [10 - October]
  255. * [11 - November]
  256. * [12 - December]
  257. *
  258. * @return Return the given month as a localized string
  259. */
  260. + (NSString *)monthWithMonthNumber:(NSInteger)month {
  261. switch(month) {
  262. case 1:
  263. return @"January";
  264. break;
  265. case 2:
  266. return @"February";
  267. break;
  268. case 3:
  269. return @"March";
  270. break;
  271. case 4:
  272. return @"April";
  273. break;
  274. case 5:
  275. return @"May";
  276. break;
  277. case 6:
  278. return @"June";
  279. break;
  280. case 7:
  281. return @"July";
  282. break;
  283. case 8:
  284. return @"August";
  285. break;
  286. case 9:
  287. return @"September";
  288. break;
  289. case 10:
  290. return @"October";
  291. break;
  292. case 11:
  293. return @"November";
  294. break;
  295. case 12:
  296. return @"December";
  297. break;
  298. default:
  299. break;
  300. }
  301. return @"";
  302. }
  303. + (NSString *)stringWithDate:(NSDate *)date format:(NSString *)format {
  304. return [date stringWithFormat:format];
  305. }
  306. - (NSString *)stringWithFormat:(NSString *)format {
  307. NSDateFormatter *outputFormatter = [[NSDateFormatter alloc] init];
  308. [outputFormatter setDateFormat:format];
  309. NSString *retStr = [outputFormatter stringFromDate:self];
  310. return retStr;
  311. }
  312. + (NSDate *)dateWithString:(NSString *)string format:(NSString *)format {
  313. NSDateFormatter *inputFormatter = [[NSDateFormatter alloc] init];
  314. [inputFormatter setDateFormat:format];
  315. NSDate *date = [inputFormatter dateFromString:string];
  316. return date;
  317. }
  318. - (NSUInteger)daysInMonth:(NSUInteger)month {
  319. return [NSDate daysInMonth:self month:month];
  320. }
  321. + (NSUInteger)daysInMonth:(NSDate *)date month:(NSUInteger)month {
  322. switch (month) {
  323. case 1: case 3: case 5: case 7: case 8: case 10: case 12:
  324. return 31;
  325. case 2:
  326. return [date isLeapYear] ? 29 : 28;
  327. }
  328. return 30;
  329. }
  330. - (NSUInteger)daysInMonth {
  331. return [NSDate daysInMonth:self];
  332. }
  333. + (NSUInteger)daysInMonth:(NSDate *)date {
  334. return [self daysInMonth:date month:[date month]];
  335. }
  336. - (NSString *)timeInfo {
  337. return [NSDate timeInfoWithDate:self];
  338. }
  339. + (NSString *)timeInfoWithDate:(NSDate *)date {
  340. return [self timeInfoWithDateString:[self stringWithDate:date format:[self ymdHmsFormat]]];
  341. }
  342. + (NSString *)timeInfoWithDateString:(NSString *)dateString {
  343. NSDate *date = [self dateWithString:dateString format:[self ymdHmsFormat]];
  344. NSDate *curDate = [NSDate date];
  345. NSTimeInterval time = -[date timeIntervalSinceDate:curDate];
  346. int month = (int)([curDate month] - [date month]);
  347. int year = (int)([curDate year] - [date year]);
  348. int day = (int)([curDate day] - [date day]);
  349. NSTimeInterval retTime = 1.0;
  350. if (time < 3600) { // 小于一小时
  351. retTime = time / 60;
  352. retTime = retTime <= 0.0 ? 1.0 : retTime;
  353. return [NSString stringWithFormat:@"%.0f分钟前", retTime];
  354. } else if (time < 3600 * 24) { // 小于一天,也就是今天
  355. retTime = time / 3600;
  356. retTime = retTime <= 0.0 ? 1.0 : retTime;
  357. return [NSString stringWithFormat:@"%.0f小时前", retTime];
  358. } else if (time < 3600 * 24 * 2) {
  359. return @"昨天";
  360. }
  361. // 第一个条件是同年,且相隔时间在一个月内
  362. // 第二个条件是隔年,对于隔年,只能是去年12月与今年1月这种情况
  363. else if ((abs(year) == 0 && abs(month) <= 1)
  364. || (abs(year) == 1 && [curDate month] == 1 && [date month] == 12)) {
  365. int retDay = 0;
  366. if (year == 0) { // 同年
  367. if (month == 0) { // 同月
  368. retDay = day;
  369. }
  370. }
  371. if (retDay <= 0) {
  372. // 获取发布日期中,该月有多少天
  373. int totalDays = (int)[self daysInMonth:date month:[date month]];
  374. // 当前天数 + (发布日期月中的总天数-发布日期月中发布日,即等于距离今天的天数)
  375. retDay = (int)[curDate day] + (totalDays - (int)[date day]);
  376. }
  377. return [NSString stringWithFormat:@"%d天前", (abs)(retDay)];
  378. } else {
  379. if (abs(year) <= 1) {
  380. if (year == 0) { // 同年
  381. return [NSString stringWithFormat:@"%d个月前", abs(month)];
  382. }
  383. // 隔年
  384. int month = (int)[curDate month];
  385. int preMonth = (int)[date month];
  386. if (month == 12 && preMonth == 12) {// 隔年,但同月,就作为满一年来计算
  387. return @"1年前";
  388. }
  389. return [NSString stringWithFormat:@"%d个月前", (abs)(12 - preMonth + month)];
  390. }
  391. return [NSString stringWithFormat:@"%d年前", abs(year)];
  392. }
  393. return @"1小时前";
  394. }
  395. - (NSString *)ymdFormat {
  396. return [NSDate ymdFormat];
  397. }
  398. - (NSString *)hmsFormat {
  399. return [NSDate hmsFormat];
  400. }
  401. - (NSString *)ymdHmsFormat {
  402. return [NSDate ymdHmsFormat];
  403. }
  404. + (NSString *)ymdFormat {
  405. return @"yyyy-MM-dd";
  406. }
  407. + (NSString *)hmsFormat {
  408. return @"HH:mm:ss";
  409. }
  410. + (NSString *)ymdHmsFormat {
  411. return [NSString stringWithFormat:@"%@ %@", [self ymdFormat], [self hmsFormat]];
  412. }
  413. - (NSDate *)offsetYears:(int)numYears {
  414. return [NSDate offsetYears:numYears fromDate:self];
  415. }
  416. + (NSDate *)offsetYears:(int)numYears fromDate:(NSDate *)fromDate {
  417. if (fromDate == nil) {
  418. return nil;
  419. }
  420. #if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0
  421. // NSDayCalendarUnit
  422. NSCalendar *gregorian = [[NSCalendar alloc]
  423. initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
  424. #else
  425. NSCalendar *gregorian = [[NSCalendar alloc]
  426. initWithCalendarIdentifier:NSGregorianCalendar];
  427. #endif
  428. NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
  429. [offsetComponents setYear:numYears];
  430. return [gregorian dateByAddingComponents:offsetComponents
  431. toDate:fromDate
  432. options:0];
  433. }
  434. - (NSDate *)offsetMonths:(int)numMonths {
  435. return [NSDate offsetMonths:numMonths fromDate:self];
  436. }
  437. + (NSDate *)offsetMonths:(int)numMonths fromDate:(NSDate *)fromDate {
  438. if (fromDate == nil) {
  439. return nil;
  440. }
  441. #if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0
  442. // NSDayCalendarUnit
  443. NSCalendar *gregorian = [[NSCalendar alloc]
  444. initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
  445. #else
  446. NSCalendar *gregorian = [[NSCalendar alloc]
  447. initWithCalendarIdentifier:NSGregorianCalendar];
  448. #endif
  449. NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
  450. [offsetComponents setMonth:numMonths];
  451. return [gregorian dateByAddingComponents:offsetComponents
  452. toDate:fromDate
  453. options:0];
  454. }
  455. - (NSDate *)offsetDays:(int)numDays {
  456. return [NSDate offsetDays:numDays fromDate:self];
  457. }
  458. + (NSDate *)offsetDays:(int)numDays fromDate:(NSDate *)fromDate {
  459. if (fromDate == nil) {
  460. return nil;
  461. }
  462. #if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0
  463. // NSDayCalendarUnit
  464. NSCalendar *gregorian = [[NSCalendar alloc]
  465. initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
  466. #else
  467. NSCalendar *gregorian = [[NSCalendar alloc]
  468. initWithCalendarIdentifier:NSGregorianCalendar];
  469. #endif
  470. NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
  471. [offsetComponents setDay:numDays];
  472. return [gregorian dateByAddingComponents:offsetComponents
  473. toDate:fromDate
  474. options:0];
  475. }
  476. - (NSDate *)offsetHours:(int)hours {
  477. return [NSDate offsetHours:hours fromDate:self];
  478. }
  479. + (NSDate *)offsetHours:(int)numHours fromDate:(NSDate *)fromDate {
  480. if (fromDate == nil) {
  481. return nil;
  482. }
  483. #if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0
  484. // NSDayCalendarUnit
  485. NSCalendar *gregorian = [[NSCalendar alloc]
  486. initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
  487. #else
  488. NSCalendar *gregorian = [[NSCalendar alloc]
  489. initWithCalendarIdentifier:NSGregorianCalendar];
  490. #endif
  491. NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
  492. [offsetComponents setHour:numHours];
  493. return [gregorian dateByAddingComponents:offsetComponents
  494. toDate:fromDate
  495. options:0];
  496. }
  497. @end