title: How to do a native "Pulse effect" animation on a UIButton - iOS
body: <p>I would like to have some kind of pulse animation (infinite loop "scale in - scale out") on a UIButton so it gets users' attention immediately.</p>
  
  <p>I saw this link <a href="https://stackoverflow.com/questions/4910963/how-to-create-a-pulse-effect-using-web-kit-animation-outward-rings">How to create a pulse effect using -webkit-animation - outward rings</a> but I was wondering if there was any way to do this only using native framework?</p>