I'm coding in react native and I'm getting an error while trying to log notifications to console. I think that the problem is that I need to request permissions for my script to work. I don't see any documentation on how to do this.
My code so far is:
import { useState, useEffect, useRef } from 'react';
import { Text, View, Button, Platform } from 'react-native';
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(() => {
// Add an event listener to handle notifications when the app is in the foreground
const foregroundSubscription = Notifications.addNotificationReceivedListener(handleNotification);
// Add an event listener to handle notifications when the app is in the background or closed
const backgroundSubscription = Notifications.addNotificationResponseReceivedListener(handleNotificationResponse);
// Clean up subscriptions when the component is unmounted
return () => {
foregroundSubscription.remove();
backgroundSubscription.remove();
};
}, []);
const handleNotification = (notification) => {
// Handle the notification when the app is in the foreground
console.log('Notification received:', notification);
// You can implement custom logic to display the notification content or take other actions
};
const handleNotificationResponse = (response) => {
// Handle the user's response to the notification (e.g., tapping on it)
console.log('Notification response received:', response);
// You can implement custom logic based on the user's response
};
useEffect(() => {
registerForPushNotificationsAsync().then(token => setExpoPushToken(token));
notificationListener.current = Notifications.addNotificationReceivedListener(notification => {
setNotification(notification);
});
responseListener.current = Notifications.addNotificationResponseReceivedListener(response => {
console.log(response);
});
return () => {
Notifications.removeNotificationSubscription(notificationListener.current);
Notifications.removeNotificationSubscription(responseListener.current);
};
}, []);
return (
<View
style={{
flex: 1,
alignItems: 'center',
justifyContent: 'space-around',
}}>
<Text>Your expo push token: {expoPushToken}</Text>
<View style={{ alignItems: 'center', justifyContent: 'center' }}>
<Text>Title: {notification && notification.request.content.title} </Text>
<Text>Body: {notification && notification.request.content.body}</Text>
<Text>Data: {notification && JSON.stringify(notification.request.content.data)}</Text>
</View>
<Button
title="Press to schedule a notification"
onPress={async () => {
await schedulePushNotification();
}}
/>
</View>
);
}
async function schedulePushNotification() {
await Notifications.scheduleNotificationAsync({
content: {
title: "You've got mail! ",
body: 'Here is the notification body',
data: { data: 'goes here' },
},
trigger: { seconds: 2 },
});
}
async function registerForPushNotificationsAsync() {
let token;
if (Platform.OS === 'android') {
await Notifications.setNotificationChannelAsync('default', {
name: 'default',
importance: Notifications.AndroidImportance.MAX,
vibrationPattern: [0, 250, 250, 250],
lightColor: '#FF231F7C',
});
}
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;
}
// Learn more about projectId:
// https://docs.expo.dev/push-notifications/push-notifications-setup/#configure-projectid
token = (await Notifications.getExpoPushTokenAsync({ projectId: 'your-project-id' })).data;
console.log(token);
} else {
alert('Must use physical device for Push Notifications');
}
return token;
} I think the problem is in the beginning with the event listeners. THere is nowhere to request permissions from user so I need help integrating this within my code. The error is "Unhandled promise rejection Error: "Encountered an exception while calling native method: Exception occurred while executing exported method requestPermissionsAsync on module ExpoNotificationPermissionsModule: String resource ID #0xffffffff" in Error: Encountered an exception while calling native method:"