title: android camera release error from PreviewCallback
body: <p>So I've read over the Camera API and couldn't find anything on this. I'm using the Camera to grab frames and it works perfectly, until I try to release the camera. I replicated the error in one sequence of calls:</p>
  
  <pre><code>camera = Camera.open();
  camera.setPreviewDisplay(getHolder());
  Parameters params = camera.getParameters();
  List&lt;Size&gt; ls = params.getSupportedPreviewSizes();
  Size size = ls.get(1);
  this.width = size.width;
  this.height = size.height;
  params.setPreviewSize(size.width, size.height);
  camera.setParameters(params);
  camera.setDisplayOrientation(90);
  camera.setPreviewCallback(this);
  camera.startPreview();
  camera.stopPreview();
  camera.release();
  </code></pre>
  
  <p>The error I get is</p>
  
  <pre><code>03-22 13:31:42.592: E/AndroidRuntime(14152): java.lang.RuntimeException: Method called after release()
  03-22 13:31:42.592: E/AndroidRuntime(14152):    at android.hardware.Camera.setHasPreviewCallback(Native Method)
  03-22 13:31:42.592: E/AndroidRuntime(14152):    at android.hardware.Camera.access$600(Camera.java:114)
  03-22 13:31:42.592: E/AndroidRuntime(14152):    at android.hardware.Camera$EventHandler.handleMessage(Camera.java:545)
  03-22 13:31:42.592: E/AndroidRuntime(14152):    at android.os.Handler.dispatchMessage(Handler.java:99)
  03-22 13:31:42.592: E/AndroidRuntime(14152):    at android.os.Looper.loop(Looper.java:130)
  03-22 13:31:42.592: E/AndroidRuntime(14152):    at android.app.ActivityThread.main(ActivityThread.java:3684)
  03-22 13:31:42.592: E/AndroidRuntime(14152):    at java.lang.reflect.Method.invokeNative(Native Method)
  03-22 13:31:42.592: E/AndroidRuntime(14152):    at java.lang.reflect.Method.invoke(Method.java:507)
  03-22 13:31:42.592: E/AndroidRuntime(14152):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:845)
  03-22 13:31:42.592: E/AndroidRuntime(14152):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:603)
  03-22 13:31:42.592: E/AndroidRuntime(14152):    at dalvik.system.NativeStart.main(Native Method)
  </code></pre>
  
  <p>So whatever is going on is not in one of my functions.
  If I comment out the camera.setPreviewCallback(this); then this error does not appear, but I obviously lose my callback, which is the whole point of including the camera in my app.</p>