title: Android MPChart How to show custom marker?
body: <p>I want to customize the bar marker in Android MpChart library. Here is what I expected but do no know? How to show marker on the tip of the bar? I tried setting the background as image view with arrow marker at bottom but it will move if I switch between bars.</p>
  <p><a href="https://i.stack.imgur.com/rMP7W.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rMP7W.png" alt="enter image description here" /></a></p>