title: Scaling drawables for multiple screen densities
body: <p>What is the recommended method for scaling images for each of the android drawable screen densities (hdpi, ldpi, xhdpi, ect.)? Should we use the source image resolution as the resolution for the highest density (xxhdpi) and scale from there? In my case I am explicitly setting the size of the image in the layout to 50 x 50 dp, so should I scale the drawable so that my mdpi is 50x50 and base the other resolutions around that? </p>
  
  <p>PS: Why do we have to scale drawables manually if they will get scaled anyways when being placed (is it less efficient/clean?)</p>