Welcome

首页 / 移动开发 / IOS / IOS 时间和时间戳之间转化示例

以毫秒为整数值的时间戳转换

时间戳转化为时间NSDate

- (NSString *)timeWithTimeIntervalString:(NSString *)timeString{// 格式化时间NSDateFormatter* formatter = [[NSDateFormatter alloc] init];formatter.timeZone = [NSTimeZone timeZoneWithName:@"shanghai"];[formatter setDateStyle:NSDateFormatterMediumStyle];[formatter setTimeStyle:NSDateFormatterShortStyle];[formatter setDateFormat:@"yyyy年MM月dd日 HH:mm"];// 毫秒值转化为秒NSDate* date = [NSDate dateWithTimeIntervalSince1970:[timeString doubleValue]/ 1000.0];NSString* dateString = [formatter stringFromDate:date];return dateString;}
时间转化为时间戳

// 当前时间 NSDate* date = [NSDate dateWithTimeIntervalSinceNow:0];NSTimeInterval a=[date timeIntervalSince1970]*1000; // *1000 是精确到毫秒,不乘就是精确到秒NSString *timeString = [NSString stringWithFormat:@"%.0f", a]; //转为字符型
通过比较时间与当前时间返回年月日的方法

- (void)getBabyDetailAge:(NSString *)date{// 获得日期对象NSDateFormatter *formatter_ = [[NSDateFormatter alloc] init];formatter_.dateFormat = @"yyyy-MM-dd HH:mm:ss";NSDate *createDate = [formatter_ dateFromString:date];NSCalendar *gregorian = [[ NSCalendar alloc ] initWithCalendarIdentifier : NSCalendarIdentifierGregorian];NSUInteger unitFlags = NSCalendarUnitDay | NSCalendarUnitMonth | NSCalendarUnitYear;NSDateComponents *components = [gregorian components:unitFlags fromDate:createDate toDate:[NSDate date] options: 0 ];NSInteger years = [components year];NSInteger months = [components month ];NSInteger days = [components day ];}
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。