I see nothing on my mobile screen(android emulator)

import MapView, { Marker } from "react-native-maps";
import { useEffect, useRef } from "react";
import React from "react";
import { StyleSheet } from "react-native";
import MapViewDirections from "react-native-maps-directions";
export default function Navigation() {
const origin = { latitude: 37.3318456, longitude: -122.0296002 };
const destination = { latitude: 37.771707, longitude: -122.4053769 };
const GOOGLE_MAPS_APIKEY = "mykey";

return (



);
}
I have very simple code and i see nothing on screen, no map nothing.
https://prnt.sc/SyoQ6ynnLQJQ