//时间戳转时间 年月日
+ (NSString *)timeStringWithTimeInterval:(NSInteger)timeInterval {
NSDate *date = [NSDate dateWithTimeIntervalSince1970:timeInterval]; //此处根据项目需求,选择是否除以1000 , 如果时间戳精确到秒则去掉1000
NSDateFormatter *formatter = [[NSDateFormatter alloc]init];
// NSDate *currentDate = [NSDate date];//获取当前时间，日
// NSDate *pastHalfHour = [currentDate dateByAddingTimeInterval:-3600]; // 半小时前是-1800 1小时后是3600 1小时前是-3600
//
// NSInteger timeSp = [[NSNumber numberWithDouble:[pastHalfHour timeIntervalSince1970]] integerValue];
// if (timeInterval < timeSp) {
//
// }
formatter.dateFormat = @"YYYY-MM-dd HH:mm:ss";
return [formatter stringFromDate:date];
//今天
// if ([date isToday]) {
//
// formatter.dateFormat = @"HH:mm";
//
// return [formatter stringFromDate:date];
// }else{
//
// NSLog(@"%@", [formatter stringFromDate:date]);
// //昨天
// if ([date isYesterday]) {
//
// formatter.dateFormat = @"昨天 HH:mm";
// return [formatter stringFromDate:date];
//
// //一周内 [date weekdayStringFromDate]
// }else if ([date isSameWeek]){
//
// formatter.dateFormat = [NSString stringWithFormat:@"%@ %@",[date weekdayStringFromDate],@"HH:mm"];
// return [formatter stringFromDate:date];
//
// //直接显示年月日
// }else{
//
// formatter.dateFormat = @"yy-MM-dd HH:mm";
// return [formatter stringFromDate:date];
// }
// }
// return nil;
}
//时间戳转时间 年月日
+ (NSString *)timeWithTimestamp:(NSInteger )timestamp format:(NSString *)format {
NSDate *date = [NSDate dateWithTimeIntervalSince1970:timestamp]; //此处根据项目需求,选择是否除以1000 , 如果时间戳精确到秒则去掉1000
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
formatter.dateFormat = format;
return [formatter stringFromDate:date];
}
+(NSInteger)timeSwitchTimestamp:(NSString *)formatTime andFormatter:(NSString *)format{
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateStyle:NSDateFormatterMediumStyle];
[formatter setTimeStyle:NSDateFormatterShortStyle];
[formatter setDateFormat:format]; //(@"YYYY-MM-dd hh:mm:ss") ----------设置你想要的格式,hh与HH的区别:分别表示12小时制,24小时制
NSTimeZone* timeZone = [NSTimeZone timeZoneWithName:@"Asia/Beijing"];
[formatter setTimeZone:timeZone];
NSDate* date = [formatter dateFromString:formatTime]; //------------将字符串按formatter转成nsdate
//时间转时间戳的方法:
NSInteger timeSp = [[NSNumber numberWithDouble:[date timeIntervalSince1970]] integerValue];
return timeSp;
}
// 当前时间
+ (NSString *)getCurrentTimeyyyymmdd {
NSDate *now = [NSDate date];
NSDateFormatter *formatDay = [[NSDateFormatter alloc] init];
formatDay.dateFormat = @"yyyy-MM-dd";
NSString *dayStr = [formatDay stringFromDate:now];
return dayStr;
}
/// 计算时间戳之间的时间差
+ (NSDateComponents *)getDateDifferenceWithBeginTimestamp:(NSString*)beginTimestamp
endTimestamp:(NSString*)endTimestamp {
NSTimeInterval timer1 = [beginTimestamp doubleValue];
NSTimeInterval timer2 = [endTimestamp doubleValue];
if (timer1 == 0 || timer2 ==0) {
return 0;
}
if (beginTimestamp.length >= 13) {
timer1 = timer1 / 1000;
}
if (endTimestamp.length >= 13) {
timer2 = timer2 / 1000;
}
NSDateFormatter* formatter = [[NSDateFormatter alloc] init];
[formatter setDateStyle:NSDateFormatterMediumStyle];
[formatter setTimeStyle:NSDateFormatterShortStyle];
[formatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"];
NSDate* date = [NSDate dateWithTimeIntervalSince1970:timer1];
NSDate *date2 = [NSDate dateWithTimeIntervalSince1970:timer2];
// 日历对象（方便比较两个日期之间的差距）
NSCalendar *calendar = [NSCalendar currentCalendar];
NSCalendarUnit unit =NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond;
NSDateComponents *cmps = [calendar components:unit fromDate:date toDate:date2 options:0];
// NSString *dateString1 = [formatter stringFromDate:date];
// NSString *dateString2 = [formatter stringFromDate:date2];
// NSLog(@"%@",dateString1);
// NSLog(@"%@",dateString2);
// // 获得某个时间的年月日时分秒
// NSLog(@"差值%ld月,%ld天,%ld小时%ld分%ld秒", cmps.month,cmps.day ,cmps.hour, cmps.minute,cmps.second);
return cmps;
}
输出结果：
2021-01-15 10:25:02
2021-08-19 20:56:17
差值7月,4天,10小时31分15秒
// 倒计时：天时分秒
+ (NSString *)downTimeWithTimeInterval:(NSInteger)timeInterval {
NSInteger days = (int)(timeInterval/(3600*24));
NSInteger hours = (int)((timeInterval-days*24*3600)/3600);
NSInteger minute = (int)(timeInterval-days*24*3600-hours*3600)/60;
NSInteger second = timeInterval-days*24*3600-hours*3600-minute*60;
NSString *downTimeString = @"";
if (days == 0) {
downTimeString = @"";
}
if (days > 0) {
downTimeString = [NSString stringWithFormat:@"%ld天%ld时%ld分%ld秒", days, hours, minute, second];
} else {
if (hours > 0) {
if (hours < 10) {
downTimeString = [NSString stringWithFormat:@"%0ld时%ld分%ld秒", hours, minute, second];
} else {
downTimeString = [NSString stringWithFormat:@"%ld时%ld分%ld秒", hours, minute, second];
}
} else {
if (minute > 0) {
if (minute < 10) {
downTimeString = [NSString stringWithFormat:@"%0ld分%ld秒", minute, second];
} else {
downTimeString = [NSString stringWithFormat:@"%ld分%ld秒", minute, second];
}
} else {
if (second < 10) {
downTimeString = [NSString stringWithFormat:@"%0ld秒", second];
} else if (second == 0) {
downTimeString = @"";
} else {
downTimeString = [NSString stringWithFormat:@"%ld秒", second];
}
}
}
}
return downTimeString;
}
