CODEWITHSUNDEEP
iosnsdatensdateformatter
sorin
sorin

Reputation: 170698

How to properly convert the Last-Modified header from an HTTP response to an NSDate on iOS

I am looking for a fully working solution, one that works with:

Current broken code:

 NSString lastModifiedString = @"Mon, 06 Jun 2011 12:47:05 GMT";
 NSDateFormatter *df = [[NSDateFormatter alloc] init];  
 //df.dateFormat = @"EEE',' dd MMM yyyy HH':'mm':'ss 'GMT'";
 df.dateFormat = @"EEE, dd MMM yyyy HH:mm:ss z";
 df.locale = [[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"] autorelease];  
 df.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"];  
 NSDate date = [df dateFromString:lastModifiedString];

I assumed that Last-Modified is supposed to use the same format like other date fields in HTTP spec, meaning to use RFC-1123 / RFC-822

Resources:

Upvotes: 18

Views: 3204

Answers (1)

Dave DeLong
Dave DeLong

Reputation: 243156

The only thing wrong is that you're missing asterisks in-between NSString and lastModifiedString, and also between NSDate and date. Once you put those in, this code works for me.

Upvotes: 7

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