iphone - iOS6 时间间隔错误

Question

我有一些代码在 iOS 5 中工作得很好，但在 iOS 6 中会出错。

它是 TimeIntervalSinceDate 方法...

我发现其他人也有这个问题，但没有解决方案:

这是我的代码:

  NSString *origDate = @"2012-11-29 19:43:30";

   NSDateFormatter *df = [[NSDateFormatter alloc] init];
    [df setFormatterBehavior:NSDateFormatterBehavior10_4];
    [df setDateFormat:@"YYYY-MM-dd HH:mm:ss"];
    NSDate *convertedDate = [df dateFromString:origDate];
    [df release];


    NSDate* sourceDate = [NSDate date];

    NSLog(@"sourceDate: %@", sourceDate);
    NSLog(@"convertedDate: %@", convertedDate);

    NSTimeInterval ti = [ sourceDate timeIntervalSinceDate:convertedDate];

    NSLog(@"interval double: %f", ti);

在 iOS 5 中，我将其作为一个值:

interval double: 711.113610

在 iOS 6 中我得到:

interval double: 31623151.242078

有什么建议吗？

谢谢

Answer 1

看看 Apple 是怎么说 Date Formatters 的:

A common mistake is to use YYYY. yyyy specifies the calendar year whereas YYYY specifies the year (of “Week of Year”), used in the ISO year-week calendar. In most cases, yyyy and YYYY yield the same number, however they may be different. Typically you should use the calendar year.