Accessing push notification data while app is killed

Expo SDK
1

I am trying to access push notification data with killed app. I have been reading the docs and implemented the steps that are provided but still i don’t get any data, it’s like the push notification is not detected.

I am using: “expo”: “^42.0.0”, “expo-notifications”: “~0.12.3”,

import { enableScreens } from 'react-native-screens'
import { NavigationContainer } from '@react-navigation/native';
import CarNavigator from './src/navigation/CarNavigator'
import { Alert } from 'react-native';
import React, { useState, useEffect, useRef } from 'react'
import * as Notifications from 'expo-notifications'
import Constants from 'expo-constants';

enableScreens();

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

export default function App() {

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

  const registerForPushNotificationsAsync = async () => {
    let token;

    if (Constants.isDevice) {
      const { status: existingStatus } = await Notifications.getPermissionsAsync();
      let finalStatus = existingStatus;
      if (existingStatus !== 'granted') {
        const { status } = await Notifications.requestPermissionsAsync();
        finalStatus = status;
      }
      if (finalStatus !== 'granted') {
        console.log('Failed to get push token for push notification!');
        return;
      }
      token = (await Notifications.getExpoPushTokenAsync()).data;
    } else {
      console.log('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;
  }

  useEffect(() => {
    registerForPushNotificationsAsync().then(token => setExpoPushToken(token));

    notificationListener.current = Notifications.addNotificationReceivedListener(notification => {
      setNotification(notification);
    });

    responseListener.current = Notifications.addNotificationResponseReceivedListener(response => {
      Alert.alert('IN');
    });

    return () => {
      Notifications.removeNotificationSubscription(notificationListener.current);
      Notifications.removeNotificationSubscription(responseListener.current);
    };
  }, []);
  /* END */

  return (
    <NavigationContainer>
      <CarNavigator />
    </NavigationContainer>
  )
}

As per the documentation this part handles push notification data while app is killed as stated here: Notifications - Expo Documentation

responseListener.current = Notifications.addNotificationResponseReceivedListener(response => {
      Alert.alert('IN');
    });

When i send a push notification and start the app using that notification the Alert is not triggered, it’s like the push notification is not detected.

I am testing this on android with a standalone apk build.

Many thanks, Trix

2

Hey Trix, are you interacting with the notification to launch the app or simply launching the app via the home screen?

3

Hey Adam, i am interacting with the notification to lunch the app while the app is killed.

4

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