title: customise autocompletetextview drop-down background
body: <p>how to customise <code>autocompletetextview</code> drop-down background like this image</p>
  
  <p><img src="https://i.stack.imgur.com/0nHOW.png" alt="this image"></p>
  
  <p>currently i'm using <code>recyclerView</code>and custom adapter with filterable but i need to visible and hide recyclerview and it manage to hard that's why i finding solution for customise <code>autocompletetextview</code> dropdown background , any help can appreciative,Thank you in advance   </p>