title: How to apply triangular box-shadow to triangle shape in react native
body: <p>I have created a triangle shape in react native using following code.</p>
  
  <pre><code>&lt;View style={cardStyle.cardLeftNotch}&gt;&lt;/View&gt;
  
  cardLeftNotch: {
      width: 0,
      height: 0,
      backgroundColor: 'transparent',
      borderStyle: 'solid',
      borderTopWidth: 7,
      borderRightWidth: 10,
      borderBottomWidth: 7,
      borderLeftWidth: 0,
      borderTopColor: 'transparent',
      borderRightColor: '#ffffff',
      borderBottomColor: 'transparent',
      borderLeftColor: 'transparent',
      position: 'absolute',
      left: -10,
      top: 21,
      elevation: 4
  }
  </code></pre>
  
  <p>But, the shadow is not applying in triangular shape. I am using android phone for testing.</p>