title: Image in Canvas with touch events
body: <p>Seems simple, and yet I'm having problems with implementation.</p>
  
  <p>I want a canvas with image on screen including <code>onTouch</code> events.
  I have tried <code>ImageView</code> but I was not able to use canvas.
  I have tried <code>SurfaceView</code> and was able to show image in canvas on screen but I have problems with motion onTouch events (zoom, pan).</p>
  
  <p>I need canvas because I will render the image in my code.</p>
  
  <p>Can someone please show me the right way of doing this?</p>