获取时间戳
//获取当前时间
NSDate *currentDate = [NSDate date];//获取当前时间，日期
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSString *dateString = [dateFormatter stringFromDate:currentDate];
NSLog(@"现在时间--->> %@",dateString);
//日期加 60秒以后的时间,时间按照秒计算
NSTimeInterval interval = 60 * 2;
NSString *titleString = [dateFormatter stringFromDate:[currentDate initWithTimeInterval:interval sinceDate:currentDate]];
NSLog(@"未来时间 %@",titleString);
两个时间差 dateFormat为另外一个时间 和现在时间差
+(NSDateComponents *)getDateComponents:(NSString *)date dateFormat:(NSString *)dateFormat
{
//获取当前时间
NSDate *nowDate = [NSDate date];
//创建日期格式化
NSDateFormatter *dateFomatter = [[NSDateFormatter alloc] init];
dateFomatter.dateFormat = dateFormat;
//获取剩余截止时间数据
// 截止时间字符串格式
NSString *expireDateStr = date;
// 当前时间字符串格式
NSString *nowDateStr = [dateFomatter stringFromDate:nowDate];
// 截止时间data格式
NSDate *expireDate = [dateFomatter dateFromString:expireDateStr];
// 当前时间data格式
nowDate = [dateFomatter dateFromString:nowDateStr];
// 当前日历
NSCalendar *calendar = [NSCalendar currentCalendar];
// 需要对比的时间数据
NSCalendarUnit unit = NSCalendarUnitYear | NSCalendarUnitMonth
| NSCalendarUnitDay | NSCalendarUnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond;
// 对比时间差
NSDateComponents *dateCom = [calendar components:unit fromDate: expireDate toDate:nowDate options:0];
return dateCom;
}