Question

我在我的应用中使用react-native-firebase进行云消息传递和通知。在使用应用程序时可以获取所有正文和数据，但是在关闭应用程序或在后台时无法获取任何内容。

我尝试了Headless JS，但是那也不起作用

当我单击通知时，当它打开时，应用会显示此{"google.priority":"high"}

先想一下......

这是我的android mainfest

<application
      android:name=".MainApplication"
      android:label="@string/app_name"
      android:icon="@mipmap/ic_launcher"
      android:allowBackup="false"
      android:theme="@style/AppTheme"
      android:largeHeap="true">
      <meta-data
    android:name="com.google.firebase.messaging.default_notification_icon"
    android:resource="@drawable/ic_stat_ic_notification" />
      <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        android:launchMode="singleTop"
        android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
        android:windowSoftInputMode="adjustResize">

        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
      </activity>
      <!---firebase -->
      <service android:name="io.invertase.firebase.messaging.RNFirebaseMessagingService">
    <intent-filter>
      <action android:name="com.google.firebase.MESSAGING_EVENT" />
    </intent-filter>
  </service>
  <!-- <meta-data
    android:name="com.google.firebase.messaging.default_notification_channel_id"
    android:value="@string/default_notification_channel_id"/> -->
   <service android:name="io.invertase.firebase.messaging.RNFirebaseBackgroundMessagingService" />
  <!---firebase end-->
      <activity android:name="com.facebook.react.devsupport.DevSettingsActivity" />
    </application>

这是我的componentdidmount（）函数

 async componentDidMount() {
      this.getValueLocally();
      requestCameraLOCATION()

        const notificationOpen: NotificationOpen = await firebase.notifications().getInitialNotification();
        if (notificationOpen) {
            const action = notificationOpen.action;
            const notification: Notification = notificationOpen.notification;
            var seen = [];
            alert(JSON.stringify(notification.data, function(key, val) {
                if (val != null && typeof val == "object") {
                    if (seen.indexOf(val) >= 0) {
                        return;
                    }
                    seen.push(val);
                }
                return val;
            }));
        }
        const channel = new firebase.notifications.Android.Channel('test-channel', 'Test Channel', firebase.notifications.Android.Importance.Max)
                .setDescription('My apps test channel');
// Create the channel
        firebase.notifications().android.createChannel(channel);
        this.notificationDisplayedListener = firebase.notifications().onNotificationDisplayed((notification: 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.
        });
        this.notificationListener = firebase.notifications().onNotification((notification: Notification) => {
            // Process your notification as required
            notification
                .android.setChannelId('test-channel')
                .android.setSmallIcon('ic_launcher');
            firebase.notifications()
                .displayNotification(notification);

        });
        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;
            var seen = [];
            alert(JSON.stringify(notification.data, function(key, val) {
                if (val != null && typeof val == "object") {
                    if (seen.indexOf(val) >= 0) {
                        return;
                    }
                    seen.push(val);
                }
                return val;
            }));
            firebase.notifications().removeDeliveredNotification(notification.notificationId);

        });
    }






              async checkPermission() {
                firebase.messaging().hasPermission()
                .then(enabled => {
                  if (enabled) {
                    this.getToken();
                  } else {
                    this.requestPermission();
                  }
                });}


                  async getToken() {
                    let fcmToken = await AsyncStorage.getItem('fcmToken');
                    if (!fcmToken) {
                      fcmToken = await firebase.messaging().getToken();
                      if (fcmToken) {
                        // user has a device token
                        await AsyncStorage.setItem('fcmToken', fcmToken);
                      }
                    }
                  }
                  async requestPermission() {
                    firebase.messaging().requestPermission()
                    .then(() => {
                      this.getToken();
                    })
                    .catch(error => {
                      console.warn(error);
                    });
                  }

这是我的bgMessaging.js

import firebase from 'react-native-firebase';
import type { RemoteMessage } from 'react-native-firebase';
import type { Notification,NotificationOpen} from 'react-native-firebase';

export default async (message: RemoteMessage) => {

    const newNotification = new firebase.notifications.Notification()
            .android.setChannelId(message.data.channelId)
            .setNotificationId(message.messageId)
            .setTitle(message.data.title)
            .setBody(message.data.body)
            .setSound("default")
            .setData(message.Data)
            .android.setAutoCancel(true)
            .android.setSmallIcon('ic_notification')
            .android.setCategory(firebase.notifications.Android.Category.Alarm)

    // Build a channel
    const channelId = new firebase.notifications.Android.Channel(message.data.channelId, channelName, firebase.notifications.Android.Importance.Max);

    // Create the channel
    firebase.notifications().android.createChannel(channelId);
    firebase.notifications().displayNotification(newNotification)

    return Promise.resolve();

}

Answer 1

有两种类型的消息：

library(dplyr) df %>% group_by(commune) %>% summarise(house_pros=n_distinct(container), #See dplyr::n_distinct c_found=n(), # Size of each group aegypti_Pos_container=sum(aegypti!=0)) %>% #Num of aegypti !=0 bind_rows(.,tibble(commune='Total',house_pros=sum(.$house_pros),c_found=sum(.$c_found), aegypti_Pos_container=sum(.$aegypti_Pos_container))) %>% mutate(aegypti_In=(aegypti_Pos_container/house_pros)*100) # A tibble: 5 x 5 commune house_pros c_found aegypti_Pos_container aegypti_In <chr> <int> <int> <int> <dbl> 1 yde2 1 1 1 100 2 yde3 2 2 1 50 3 yde4 2 2 2 100 4 yde7 4 5 4 100 5 Total 9 10 8 88.9消息，将在后台由FCM处理（因此您的代码将无权访问该通知），而在前景中将调用notification + data，

onNotification消息在后台/关闭时将调用headlessjs，而在前景时将调用data-only。

注意：如果删除onMessage和title，则您的邮件将被分类为第二个。同样，数据在第一类中是可选的。

回顾：

对于纯数据消息：

前台应用程序：已触发body
后台应用/关闭的应用：后台处理程序（HeadlessJS）

用于通知+数据消息：

前台应用程序：已触发onMessage
后台运行的应用/关闭的应用：如果点击通知，则onNotification会触发

有关更多信息和iOS版本，请阅读官方文档for data-only messages和notification+data messages

Answer 2

似乎RN firebase在Android上不支持此功能。

请参考以下内容：

https://rnfirebase.io/docs/v5.x.x/notifications/receiving-notifications#4)-Listen-for-a-Notification-being-opened

不幸的是，在Android上，无法访问已打开的远程通知的标题和正文。如果需要，您可以使用远程通知的数据部分来提供此信息。

无法获取通知数据，当应用程序在后台或在React-native-firebase android中关闭时显示正文

2 个答案:

对于纯数据消息：

用于通知+数据消息：