title: How to convert NSData to NSArray (or NSObject)
body: <p>I did test this code, but it cause SIGABRT error. </p>
  
  <pre><code>NSArray *array = [NSKeyedUnarchiver unarchiveObjectWithData:data]
  </code></pre>
  
  <p>NSData is plist data with xml format. This code works fine.</p>
  
  <pre><code>[urlData writeToFile:[self docPath] atomically:YES];
  array = [[NSMutableArray alloc] initWithContentsOfFile:[self docPath]];
  </code></pre>
  
  <p>How can I change NSData to NSArray without file conversion?</p>