title: AVCaptureVideoPreviewLayer: taking a snapshot
body: <p>I'm trying to emulate the animation seen in the default camera app, where a snapshot of the cameras viewfinder is animated into the corner of the apps display.</p>
  
  <p>The AVCaptureVideoPreviewLayer object that holds the key to solving this problem isn't very open to these requirements: trying to create a copy of it in a new layer with ..</p>
  
  <pre><code>- (id)initWithLayer:(id)layer
  </code></pre>
  
  <p>.. returns an empty layer, without the image snapshot, so clearly there is some deeper magic going on here.</p>
  
  <p>Your clues/boos are most welcome.</p>
  
  <p>M.</p>