App.js

import React, { useEffect } from 'react';
import {
  SafeAreaView,
  StyleSheet,
  ScrollView,
  View,
  Text,
  StatusBar,
} from 'react-native';
import OneSignal from 'react-native-onesignal';

import {
  Header,
  LearnMoreLinks,
  Colors,
  DebugInstructions,
  ReloadInstructions,
} from 'react-native/Libraries/NewAppScreen';

const ONE_SIGNAL_APP_ID = "YOUR-ONESIGNAL-APP-ID";

const App = () => {
  const onReceived = (notification) => {
    console.log("Notification received: ", notification);
  }

  const onOpened = (openResult) => {
    console.log('Message: ', openResult.notification.payload.body);
    console.log('Data: ', openResult.notification.payload.additionalData);
    console.log('isActive: ', openResult.notification.isAppInFocus);
    console.log('openResult: ', openResult);
  }

  const onIds = (device) => {
    console.log('Device info: ', device);
  } 

  useEffect(() => {
    //Remove this method to stop OneSignal Debugging 
    OneSignal.setLogLevel(6, 0);

    // Replace 'YOUR_ONESIGNAL_APP_ID' with your OneSignal App ID.
    OneSignal.init(ONE_SIGNAL_APP_ID, {kOSSettingsKeyAutoPrompt : false, kOSSettingsKeyInAppLaunchURL: false, kOSSettingsKeyInFocusDisplayOption:2});
    OneSignal.inFocusDisplaying(2); // Controls what should happen if a notification is received while the app is open. 2 means that the notification will go directly to the device's notification center.

    // The promptForPushNotifications function code will show the iOS push notification prompt. We recommend removing the following code and instead using an In-App Message to prompt for notification permission (See step below)
    OneSignal.promptForPushNotificationsWithUserResponse(console.log);

    OneSignal.addEventListener('received', onReceived);
    OneSignal.addEventListener('opened', onOpened);
    OneSignal.addEventListener('ids', onIds);

    return () => {
      OneSignal.removeEventListener('received', onReceived);
      OneSignal.removeEventListener('opened', onOpened);
      OneSignal.removeEventListener('ids', onIds);
    }
  }, []);

  const onLoginComplete = (user) => {
    OneSignal.setExternalUserId(user.id);
  }

  return (
    <>
      <StatusBar barStyle="dark-content" />
      <SafeAreaView>
        <ScrollView
          contentInsetAdjustmentBehavior="automatic"
          style={styles.scrollView}>
          <Header />
          {global.HermesInternal == null ? null : (
            <View style={styles.engine}>
              <Text style={styles.footer}>Engine: Hermes</Text>
            </View>
          )}
          <View style={styles.body}>
            <View style={styles.sectionContainer}>
              <Text style={styles.sectionTitle}>Step One</Text>
              <Text style={styles.sectionDescription}>
                Edit <Text style={styles.highlight}>App.js</Text> to change this
                screen and then come back to see your edits.
              </Text>
            </View>
            <View style={styles.sectionContainer}>
              <Text style={styles.sectionTitle}>See Your Changes</Text>
              <Text style={styles.sectionDescription}>
                <ReloadInstructions />
              </Text>
            </View>
            <View style={styles.sectionContainer}>
              <Text style={styles.sectionTitle}>Debug</Text>
              <Text style={styles.sectionDescription}>
                <DebugInstructions />
              </Text>
            </View>
            <View style={styles.sectionContainer}>
              <Text style={styles.sectionTitle}>Learn More</Text>
              <Text style={styles.sectionDescription}>
                Read the docs to discover what to do next:
              </Text>
            </View>
            <LearnMoreLinks />
          </View>
        </ScrollView>
      </SafeAreaView>
    </>
  );
};

const styles = StyleSheet.create({
  scrollView: {
    backgroundColor: Colors.lighter,
  },
  engine: {
    position: 'absolute',
    right: 0,
  },
  body: {
    backgroundColor: Colors.white,
  },
  sectionContainer: {
    marginTop: 32,
    paddingHorizontal: 24,
  },
  sectionTitle: {
    fontSize: 24,
    fontWeight: '600',
    color: Colors.black,
  },
  sectionDescription: {
    marginTop: 8,
    fontSize: 18,
    fontWeight: '400',
    color: Colors.dark,
  },
  highlight: {
    fontWeight: '700',
  },
  footer: {
    color: Colors.dark,
    fontSize: 12,
    fontWeight: '600',
    padding: 4,
    paddingRight: 12,
    textAlign: 'right',
  },
});

export default App;