我正在尝试通过 this documentation 使用 React Native 和 Firebase 实现推送通知.

我通过教程设置了我需要的设置。

   import React, { Component } from 'react'
import { View } from 'react-native'
import { Input, Text, Button } from '../Components'
import type { RemoteMessage } from 'react-native-firebase'
import firebase from 'react-native-firebase'
import type { Notification, NotificationOpen } from 'react-native-firebase';

export default class TestComponent extends Component {

  async componentDidMount() {
    await this.SetUpAuth();
    await this.SetUpMessaging();
    this.notificationOpenedListener = firebase.notifications().onNotificationOpened((notificationOpen: NotificationOpen) => {
      // Get the action triggered by the notification being opened
      const action = notificationOpen.action;
      // Get information about the notification that was opened
      const notification: Notification = notificationOpen.notification;
    });
    const notificationOpen: NotificationOpen = await firebase.notifications().getInitialNotification();
    if (notificationOpen) {
      console.log(notificationOpen)
      // App was opened by a notification
      // Get the action triggered by the notification being opened
      const action = notificationOpen.action;
      // Get information about the notification that was opened
      const notification: Notification = notificationOpen.notification;
    }


  }
  componentWillUnmount() {

  }


  async SetUpAuth() {
    const credential = await firebase.auth().signInAnonymouslyAndRetrieveData();
    if (credential) {
      console.log('default app user ->', credential.user.toJSON());
    } else {
      console.error('no credential');
    }
  }
  async SetUpMessaging() {
    this.notification2 = new firebase.notifications.Notification()
      .setNotificationId('notificationId')
      .setTitle('My notification title')
      .setBody('My notification body')
      .android.setChannelId('test')
      .android.setClickAction('action')
      .setData({
        key1: 'value1',
        key2: 'value2',
      });

    this.notification2
      .android.setChannelId('channelId')
      .android.setSmallIcon('ic_launcher');
    console.log('assa')

    onTokenRefreshListener = firebase.messaging().onTokenRefresh(fcmToken => {
      console.log('token generated ->', fcmToken);
      //   store.dispatch(DeviceActions.SetFCMToken(fcmToken));
    });

    const fcmToken = await firebase.messaging().getToken();
    if (fcmToken) {
      // user has a device token
      console.log('has token ->', fcmToken);
      console.log(firebase.auth().currentUser._user)
      firebase.database().ref(`/users/${firebase.auth().currentUser._user.uid}`).set({ pushToken: fcmToken })
      //   store.dispatch(DeviceActions.SetFCMToken(fcmToken));
    } else {
      // user doesn't have a device token yet
      console.error('no messaging token');
    }

    const messagingEnabled = await firebase.messaging().hasPermission();
    if (messagingEnabled) {
      // user has permissions
      console.log('User has FCM permissions');
    } else {
      // user doesn't have permission
      console.log('User does not have FCM permissions');
      await this.RequestMessagePermissions();
    }

    messageListener = firebase.messaging().onMessage((message: RemoteMessage) => {
      console.log(`Recieved message - ${JSON.stringify(message)}`);
    });

    notificationDisplayedListener = firebase
      .notifications()
      .onNotificationDisplayed(notification => {
        // Process your notification as required
        // ANDROID: Remote notifications do not contain the channel ID. You will have to specify this manually if you'd like to re-display the notification.
        console.log(`Recieved notification 1`);
      });
    notificationListener = firebase
      .notifications()
      .onNotification(notification => {
        console.log(notification)
        firebase.notifications().displayNotification(this.notification2)
        // Process your notification as required
        console.log(`Recieved notification 2`);
      });
  }


  async RequestMessagePermissions() {
    console.log('request')
    console.log('Requesting FCM permission');
    await firebase
      .messaging()
      .requestPermission()
      .catch(err => console.err(err));
  }


  render() {
    return (
      <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center' }}>

      </View>
    )
  }

当我尝试在 postman 中使用它时，我获得了成功:

{
  "success": {
    "results": [
        {
            "messageId": "0:1525013439417985%a0cec506a0cec506"
        }
    ],
    "canonicalRegistrationTokenCount": 0,
    "failureCount": 0,
    "successCount": 1,
    "multicastId": 6840884736220792000
  }
}

但是在我的调试器中(通过 console.log)我没有看到任何新的传入消息或其他信息。我用我添加到这篇文章中的 token 向我的设备发送了一条消息，但没有任何反应。

它仅在应用程序处于前台时有效，但我想让它在应用程序处于后台/关闭应用程序时也能正常工作

最佳答案

如 docs 中所述当应用程序处于后台时，您需要 onNotificationOpened 监听器 android

Android Background: onNotificationOpened triggered if the notification is tapped.

onNotificationDisplayed 适用于后台的 IOS 应用 并且在 content_available 设置为 true 时触发

notificationBackgroundListener = firebase
    .notifications()
    .onNotificationOpened(notification => {
      // Process your notification as required
      console.log(`Recieved notification 2`);
    });

关于javascript - 使用 Firebase FCM 响应 native ，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50087894/