title: How to add a EditText in circle shape and accept only 1 number
body: <p>how to make a edittext field in complete circle shape, not just rounded.
  and force it to accept only 1 number.
  i am looking for something like this <a href="https://i.stack.imgur.com/pj87q.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/pj87q.png" alt="enter image description here" /></a></p>
  <p>\n\n</p>