functionExport.js

functionExport.js

import React from "react";
import { StyleSheet, Text, View } from 'react-native';

export function navigationOptions({ navigation }) {
  return {
    header: null
  };
}

const FunctionScreen = () => {
  
  return (
    <View style={styles.container}>
      <Text>Function component!</Text>
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: "#fff",
    alignItems: "center",
    justifyContent: "center"
  }
});

export default FunctionScreen;