title: setImageResource Vs setDrawable
body: <p>When it comes android development and performance, if you have imageview then which one would be faster or better (is there a difference anyways!): setImageResource and setDrawable
  Iknow one takes ID and the other one takes drawable. But I will be getting the drwable from ID anyways.
  Which one do you think is better?</p>
  
  <p>Or should I avoid using imageview alltogether and use load/draw bitmap?
  too many selections is confusing
  Thanks for the comments</p>