title: How to use border radius only for 1 corner (react-native)?
body: <p>How to use border radius in React Native only for 1 corner?</p>
  
  <p>I have a modal window</p>
  
  <p><a href="https://i.stack.imgur.com/XvySU.png"><img src="https://i.stack.imgur.com/XvySU.png" alt="http://f1.s.qip.ru/etSMz5YP.png"></a></p>
  
  <p>As you can see bottom corners not rounded, it happens when I used backgroundColor for buttons. I was trying to set overflow hidden to modal wrapper and it didn't help me. Now I want to use border radius to buttons (only for 1 corner).</p>
  
  <p>My code <a href="http://jsbin.com/sexeputuqe/edit?html,css">http://jsbin.com/sexeputuqe/edit?html,css</a></p>