///时间戳转化为字符转0000-00-00 00:00
+ (NSString *)time_timestampToString:(NSInteger)timestamp{
NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:timestamp];
NSDateFormatter *dateFormat=[[NSDateFormatter alloc]init];
[dateFormat setDateFormat:@"yyyy-MM-dd HH:mm"];
NSString* string=[dateFormat stringFromDate:confromTimesp];
return string;
}
///date转化为字符转0000-00-00 00:00
+ (NSString *)time_dateToString:(NSDate *)date{
NSDateFormatter *dateFormat=[[NSDateFormatter alloc]init];
[dateFormat setDateFormat:@"yyyy-MM-dd HH:mm"];
NSString* string=[dateFormat stringFromDate:date];
return string;
}
- (void)dateDifferenceValue{
NSString *time2 = @"2018-02-11 00:00:00";
// 2.将时间转换为date
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
formatter.dateFormat = @"yyyy-MM-dd HH:mm:ss";
NSDate *date1 = [NSDate date];
NSDate *date2 = [formatter dateFromString:time2];
// 3.创建日历
NSCalendar *calendar = [NSCalendar currentCalendar];
NSCalendarUnit type = NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond;
// 4.利用日历对象比较两个时间的差值
NSDateComponents *cmps = [calendar components:type fromDate:date1 toDate:date2 options:0];
// 5.输出结果
NSLog(@"两个时间相差%ld年%ld月%ld日%ld小时%ld分钟%ld秒", cmps.year, cmps.month, cmps.day, cmps.hour, cmps.minute, cmps.second);
}
