title: Serialize an NSMutableArray with Objects inside
body: <p>I have an NSMutableArray with a bunch of Points(it's a class defined by me) inside. And I want to serialize this NSMutableArray to save to my disk. If I implement in my class Point the NSCoding protocol is it possible to use NSKeyedArchiver directly in my NSMutableArray? </p>
  
  <p>Just like this example:</p>
  
  <pre><code>NSMutableData *data = [NSMutableData new];
  NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data];
  [archiver encodeObject:myArray forKey:@"array"];
  [data writeToFile:filename attomically:YES];
  [archiver release];
  [data release];
  </code></pre>