title: How to Use Camera and SurfaceView in Background
body: <p>iam currently using camera and surfaceview in my app to use Torch etc ... , im using these in an Activity ,
  How to use Camera and SurfaceView in Background , ex . : I want to keep Torch/Led Flash On , i saw many Widget that work fine in Background , how they do it ?</p>
  
  <p>Thanks .</p>