title: scaling image size in Picasso
body: <p>I want to download an image from a URL and display it in a View in my fragment. I am using Picasso to do this but I want the image to display in it's original aspect ratio but scaled to be a reasonable size - ie 75% of the screen width. I want to support both landscape and portrait photos. So the thinking is something like this.</p>
  
  <p>If the screen width is 200 and the image is landscape 5x4 aspect, then the image should be displayed to  75% width - ie 150 and 120 height (keeping proportions)</p>
  
  <p>If the screen width is 200 and the image is portrait 4x5 aspect, then the image should be display to 75% screen width as the HEIGHT dimension - ie 150 height and 120 width</p>
  
  <p>How can I do this using Picasso?</p>