NSDateFormatter设置日期至1970年

Question

在我summarydict，我有一种被称为全date_generated，它看起来像：09月22日下午2:33，我想将它转换成一个NSDate，这样我可以在以后给它成重复计时器。

因此，这里是我的代码：

ALog(@"Last update time is: %@", [[summarydict objectForKey:@"root"]objectForKey:@"date_generated"]); 
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; 
[dateFormatter setLenient:YES]; 
[dateFormatter setDateFormat:@"MM dd, h:mm a"]; 
[dateFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@"en_US"] autorelease]]; 
[dateFormatter setTimeZone:[NSTimeZone timeZoneWithName:@"America/New_York"]]; 
NSDate *date = [dateFormatter dateFromString:[[summarydict objectForKey:@"root"]objectForKey:@"date_generated"]]; 
ALog(@"Using timezone: %@", [dateFormatter timeZone]); 
ALog(@"Last updated time: %@", date); 
ALog(@"Current time: %@", [NSDate dateWithTimeIntervalSinceNow:0]); 
ALog(@"Next update time: %@", [date dateByAddingTimeInterval:600]); 

这里就是我的了：

Last update time is: Sep 22, 2:33 PM 
Using timezone: America/New_York (EDT) offset -14400 (Daylight) 
Last updated time: 1970-09-22 18:33:00 +0000 
Current time: 2011-09-22 18:43:05 +0000 
Next update time: 1970-09-22 18:43:00 +0000 

我明白NSLog（我的考勤记录）不关心timezoon，因此通过显示其作为GMT timezoon是好的，但我怎么能让formatter认为我有Sep 22，2:33 PM是本年度？我有[dateFormatter setLenient:YES];但它不起作用。

谢谢！

Answer 1

你觉得这是什么：

NSString *str = [NSString stringWithFormat:@"2011 %@", [[summarydict objectForKey:@"root"]objectForKey:@"date_generated"]]; 
NSLog(@"Last update time is: %@", str); 
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; 
[dateFormatter setLenient:YES]; 
[dateFormatter setDateFormat:@"yyyy MM dd, h:mm a"]; 
[dateFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@"en_US"] autorelease]]; 
[dateFormatter setTimeZone:[NSTimeZone timeZoneWithName:@"America/New_York"]]; 
NSDate *date = [dateFormatter dateFromString:str]; 
NSLog(@"Using timezone: %@", [dateFormatter timeZone]); 
NSLog(@"Last updated time: %@", date); 
NSLog(@"Current time: %@", [NSDate dateWithTimeIntervalSinceNow:0]); 
NSLog(@"Next update time: %@", [date dateByAddingTimeInterval:600]);