title: Efficient retrieval of scaled asset bitmaps
body: <p>I've got a <code>GridView</code> of many images which are retrieved from the assets folder and decoded from streams. These are typically quite large (to be used elsewhere in the app), but for the GridView need to only be 140dp wide or have a minimum height of 150dp. Which of the options in <code>BitmapFactory.Options</code> should I use to scale the image to this density/resolution? I'm confused by the many different density options.</p>