title: Minimum size of background image in Android app
body: <p>I want to keep an image in the res/drawable folder, which would be used as the background in my app. I wish that my app should work across all devices of varying densities. What minimum size in pixels should the image be kept to maintain balance between a reasonable app size and also supporting multiple screens.</p>
  
  <p>The developer guide mentions that:</p>
  
  <pre><code>xlarge screens are at least 960dp x 720dp
  large screens are at least 640dp x 480dp
  normal screens are at least 470dp x 320dp
  small screens are at least 426dp x 320dp
  </code></pre>
  
  <p>I use Photoshop where the images are always in pixels and not dp and hence the confusion. By the way, I am quite new at Android as well as Photoshop.</p>