import React, { useEffect } from "react";
import { useIsFocused } from "@react-navigation/native";

const ExampleScreen = (props) => {
    const isFocused = useIsFocused();

    useEffect(() => {
        console.log("called");
 
        // Call only when screen open or when back on screen 
        if(isFocused){ 
            getInitialData();
        }
    }, [props, isFocused]);

    const getInitialData = async () => {}    

    return (
        ......
        ......
    )
}