react-navigation-header-buttons.example.js

import HeaderButtons from 'react-navigation-header-buttons';
import Icon from 'react-native-vector-icons/Ionicons';

static navigationOptions = {
  title: 'Usage With Icons',
  headerRight: (
    <HeaderButtons IconComponent={Ionicons} iconSize={23} color="blue">
      <HeaderButtons.Item title="add" iconName="ios-search" onPress={() => console.warn('add')} />
      <HeaderButtons.Item title="select" onPress={() => console.warn('edit')} />
    </HeaderButtons>
  ),
};