title: React-native-vector-icons show obscure symbols
body: <p>I've installed <code>react-native-vecotor</code>. And when using them, they showing obscure symbols. How to use this library ? Platform: Android</p>
  
  <pre><code>import React from 'react';
  import {View, Text, StyleSheet} from 'react-native';
  import Icon from 'react-native-vector-icons/Ionicons';
  
  const SearchBar = () =&gt; {
      return (
          &lt;View style={styles.background}&gt;
              &lt;Icon name="md-body" color='#000'  size={25} /&gt;
          &lt;/View&gt;
      );
  };
  const styles = StyleSheet.create({
      background:{
          backgroundColor:'#F0EEEE',
          marginHorizontal: 15,
          height:45,
          borderRadius:5,
      }
  });
  export default SearchBar;
  </code></pre>