How to change Floating Action Button icon in React Native

In this React Native source code example, the source code below illustrate how to change Floating Action Button icon in React Native.

You can copy and adopt this source code example to your React Native project without reinventing the wheel.

import React, {Component} from 'react';
import {StyleSheet, Text, View,TouchableOpacity} from 'react-native';
import Icon from 'react-native-vector-icons/MaterialCommunityIcons'; /* Check react-native-vector-icons
                                                                    to get a  complete list of available icons*/
export default class App extends Component{
  render() {
    return (
      <View style={styles.container}>
          <TouchableOpacity style={styles.fab}>
              <Icon name="share-variant" size={25} style={{color: 'white'}} />

const styles = StyleSheet.create({
    height: 50,
    width: 50,
    borderRadius: 200,
    position: 'absolute',
    bottom: 20,
    right: 20,
    justifyContent: 'center',
    alignItems: 'center',
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    backgroundColor: '#fff',

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