App.js

import 'react-native-gesture-handler';
import React, {useState, useEffect, useRef} from 'react';
import Routes from './src/Routes';
import UserProvider from "./src/contexts/useUserContext";
import { LogBox } from 'react-native';
import {
  useFonts,
  Roboto_100Thin,
  Roboto_100Thin_Italic,
  Roboto_300Light,
  Roboto_300Light_Italic,
  Roboto_400Regular,
  Roboto_400Regular_Italic,
  Roboto_500Medium,
  Roboto_500Medium_Italic,
  Roboto_700Bold,
  Roboto_700Bold_Italic,
  Roboto_900Black,
  Roboto_900Black_Italic,
} from '@expo-google-fonts/roboto';
import AppLoading from 'expo-app-loading';

import * as Device from 'expo-device';
import * as Notifications from 'expo-notifications';

Notifications.setNotificationHandler({
  handleNotification: async () => ({
    shouldShowAlert: true,
    shouldPlaySound: false,
    shouldSetBadge: false,
  }),
});

export default function App() {

  const [expoPushToken, setExpoPushToken] = useState('');
  const [notification, setNotification] = useState(false);
  const notificationListener = useRef();
  const responseListener = useRef();

  useEffect(() => {
    registerForPushNotificationsAsync().then(token => setExpoPushToken(token))
  }, []);


  LogBox.ignoreLogs(['Setting a timer']);

  let [fontsLoaded] = useFonts({
    Roboto_100Thin,
    Roboto_100Thin_Italic,
    Roboto_300Light,
    Roboto_300Light_Italic,
    Roboto_400Regular,
    Roboto_400Regular_Italic,
    Roboto_500Medium,
    Roboto_500Medium_Italic,
    Roboto_700Bold,
    Roboto_700Bold_Italic,
    Roboto_900Black,
    Roboto_900Black_Italic,
  });

  if (!fontsLoaded) {
    return <AppLoading />;
  }

  return (
    <UserProvider>
      <Routes>
      </Routes>
    </UserProvider>
  );
}


// Can use this function below, OR use Expo's Push Notification Tool-> https://expo.dev/notifications
async function sendPushNotification(expoPushToken) {
  const message = {
    to: expoPushToken,
    sound: 'default',
    title: 'Original Title',
    body: 'And here is the body!',
    data: { someData: 'goes here' },
  };

  await fetch('https://exp.host/--/api/v2/push/send', {
    method: 'POST',
    headers: {
      Accept: 'application/json',
      'Accept-encoding': 'gzip, deflate',
      'Content-Type': 'application/json',
    },
    body: JSON.stringify(message),
  });
}

async function registerForPushNotificationsAsync() {
  let token;
  if (Device.isDevice) {
    const { status: existingStatus } = await Notifications.getPermissionsAsync();
    let finalStatus = existingStatus;
    if (existingStatus !== 'granted') {
      const { status } = await Notifications.requestPermissionsAsync();
      finalStatus = status;
    }
    if (finalStatus !== 'granted') {
      alert('Failed to get push token for push notification!');
      return;
    }
    token = (await Notifications.getExpoPushTokenAsync()).data;
    console.log(token);
  } else {
    alert('Must use physical device for Push Notifications');
  }

  if (Platform.OS === 'android') {
    Notifications.setNotificationChannelAsync('default', {
      name: 'default',
      importance: Notifications.AndroidImportance.MAX,
      vibrationPattern: [0, 250, 250, 250],
      lightColor: '#FF231F7C',
    });
  }

  return token;
}