gistfile1.m

- (void)queryDidReceiveNotification:(NSNotification *)notification {
    NSArray *results = [self.metadataQuery results];
    
    for(NSMetadataItem *item in results) {
        NSString *filename = [item valueForAttribute:NSMetadataItemDisplayNameKey];
        NSNumber *filesize = [item valueForAttribute:NSMetadataItemFSSizeKey]; 
        NSDate *updated = [item valueForAttribute:NSMetadataItemFSContentChangeDateKey];
        NSLog(@"%@ (%@ bytes, updated %@)", filename, filesize, updated);
    }
}