一个时间戳字符串:NSString *timeStampStr = @"1441602721";
转换成时间
double unixTimeStamp = [timeStampStr doubleValue];
NSTimeInterval timeInterval = unixTimeStamp;
NSDate *date = [NSDate dateWithTimeIntervalSince1970:timeInterval];
NSDateFormatter *dateformatter = [[NSDateFormatter alloc]init];
[dateformatter setLocale:[NSLocale currentLocale]];
[dateformatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSString *dateString = [dateformatter stringFromDate:date];
NSLog(@"dateString = %@", dateString);;
//毫秒需要除以1000;
double timestampval = [timeStampStr doubleValue]/1000;
NSTimeInterval timestamp = (NSTimeInterval)timestampval;
NSDate *updatetimestamp = [NSDate dateWithTimeIntervalSince1970:timestamp];
NSLog(@"updatetimestamp = %@", updatetimestamp);
//NSDate *dateTraded = [NSDate dateWithTimeIntervalSince1970 :[timeStampStr integerValue]];
//NSLog(@"dateTraded = %@", dateTraded);
NSDate 转换成时间戳:
NSDate *date = [NSDate date];
NSTimeInterval ti = [date timeIntervalSince1970];