Expo React Native-特定用户的接收推送通知-Expo托管工作流

问题描述

我正在尝试将推送通知发送给单个用户，在服务器端，我存储ExponentPushToken和用户的ID。

但是在React Native方面，我如何只听取来自特定用户的通知？

目前，就像在博览会指南中一样，我听某个博览会令牌的所有通知，但我只希望单个用户的通知。

import ...............
import * as Notifications from 'expo-notifications';

    Notifications.setNotificationHandler({
        handleNotification: async () => ({
            shouldShowAlert: true,shouldPlaySound: false,shouldSetBadge: false,}),});
    
    export default function CustomerHome(props) {
    
    // notifications
        const [notification,setNotification] = useState(false);
        const notificationListener = useRef();
        const responseListener = useRef();
    
            /**
                 * NOTIFICATIONS
                 * */
                useEffect(() => {
                    registerForPushNotificationsAsync(userId).then(
                        () => {
            
                        }
                    );
            
                    // This listener is fired whenever a notification is received while the app is foregrounded
                    notificationListener.current = Notifications.addNotificationReceivedListener(notification => {
                        setNotification(notification);
                        console.log(notification);
                    });
            
                    // This listener is fired whenever a user taps on or interacts with a notification (works when app is foregrounded,backgrounded,or killed)
                    responseListener.current = Notifications.addNotificationResponseReceivedListener(response => {
                        console.log(response);
                    });
            
                    return () => {
                        Notifications.removeNotificationSubscription(notificationListener);
                        Notifications.removeNotificationSubscription(responseListener);
                    };
                },[]);
        
        const registerForPushNotificationsAsync = async (userId) => {
            let token;
            if (Constants.isDevice) {
                const { status: existingStatus } = await Permissions.getAsync(Permissions.NOTIFICATIONS);
                let finalStatus = existingStatus;
                if (existingStatus !== 'granted') {
                    const { status } = await Permissions.askAsync(Permissions.NOTIFICATIONS);
                    finalStatus = status;
                }
                if (finalStatus !== 'granted') {
                    console.log('Failed to get push token for push notification!');
                    return;
                }
        
                token = (await Notifications.getExpoPushTokenAsync()).data;
        
                if(token !== undefined && token !== "undefined"){
                    saveTokenOnServer(token,userId);
                }
            } else {
                console.log("Must use physical device for Push Notifications");
            }
        
        
            if (Platform.OS === 'android') {
                Notifications.createChannelAndroidAsync('default',{
                    name: 'default',sound: true,priority: 'max',vibrate: [0,250,250],});
            }
        
        };
    
    
    return(
     // my View
    );
    
    }

解决方法

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