Question

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

我在教程中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>
    )
  }

当我尝试在邮递员中使用它时，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内容。我向我的设备发送了一条消息，上面添加了令牌，但没有发生任何事情。

仅当应用程序位于前台时才有效，但我想在后台应用程序/关闭应用程序时使其工作

Answer 1

正如docs中提到的那样onNotificationOpened需要android听众，当应用在后台时

如果点击通知，则会触发
Android背景：onNotificationOpened。

onNotificationDisplayed适用于背景中的 IOS应用和triggered if content_available set to true

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

Answer 2

如果您的应用处于前台时通知工作正常，则问题出在您的服务上。它有两个可能的原因不起作用。

要么将有效负载发送为

{   
     time_to_live: 86400,
     collapse_key: "xxxxxx",
     delay_while_idle: false,
     registration_ids: registration_ids,
     notification: payload
 }

而不是

  {
       time_to_live: 86400,
        collapse_key: "xxxxxx",
        delay_while_idle: false,
        registration_ids: registration_ids,
        data: payload
  }

这是因为只有当app在前台时才会收到通知中的密钥。

另一个可能的原因可能是服务工作人员因某种原因被杀。例如：当我强行关闭应用程序时，我正在使用一个加上自动杀死服务的服务。因此，您可以通过添加日志或附加调试器来尝试在本机代码中调试服务

还要确保在Android / app文件夹中添加google-service.json文件

修改：

{ "registration_ids" : ["reg_id"], "time_to_live": 86400, "collapse_key": "test_type_b", "delay_while_idle": false, "notification": {}, "data": { "subText":"sub title R", "title":"Notification Heading R", "message":"Short big text that will be shown when notification is expanded R", "color":"red", "actions": ["hello", "welcome"], "vibrate": true, "vibration": 1000, "ticker": "My Notification Ticker", "imageUrl": "https://cdn-images-1.medium.com/max/712/1*c3cQvYJrVezv_Az0CoDcbA.jpeg" , "bigText": "blalMy big text that will be shown when notification is expanded" } }

这是我的标题

Authorization: key=mykey:myKey Content-Type: application/json

请求：

https://fcm.googleapis.com/fcm/send

是post和params是原始类型

Answer 3

你可以使用Headless JS在后台运行任务，你应该写一些本机代码来处理任务，不幸的是只在android中可用
https://facebook.github.io/react-native/docs/headless-js-android.html
第二种方式（我不测试它）是使用这个库
https://github.com/jamesisaac/react-native-background-task#installation

ps：firebase和其他推送通知服务，如onesignal轻松处理推送通知，除非你想为每个用户提供独特的通知，否则你不应该担心

与Firebase FCM一起使用本机

3 个答案: