title: Elevation on Android 4 for non-CardView
body: <p>I quite struggle with how to design the following picture in Android 4 and 5:</p>
  
  <p><a href="https://i.stack.imgur.com/Zmb18.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Zmb18.png" alt="dialog"></a></p>
  
  <p>I have read (no reference sorry) that elevation is not implemented for Android 4 not even with appCompat library. I know that CardViews have the elevation even for Android 4. However, with CardViews I wouldn't be able to make that fancy arrow, would I? Do you have any idea how to do it? Please provide a code snippet to guide me through.</p>