问题描述

我在 android 和 iPhone 中使用 react-native-fcm 进行远程通知.

I've used react-native-fcm for remote notification in android and iPhone.

react-native-fcm

在 Android 前台，我无法在通知栏中获得远程通知.

In Android foreground I'm not be able to getting remote notification in notification bar.

在后台模式下，我能够成功收到通知，但在前台却没有.

In background mode I'm able to getting notification successfully but some how in foreground doesn't.

Android Manifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
          package="com.nusape">

    <application>

        <receiver android:name="com.evollu.react.fcm.FIRLocalMessagingPublisher"/>
        <receiver android:enabled="true" android:exported="true"  android:name="com.evollu.react.fcm.FIRSystemBootEventReceiver">
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED"/>
                <action android:name="android.intent.action.QUICKBOOT_POWERON"/>
                <action android:name="com.htc.intent.action.QUICKBOOT_POWERON"/>
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
        </receiver>

        <meta-data android:name="com.google.firebase.messaging.default_notification_icon" android:resource="@mipmap/ic_launcher"/>
        <meta-data android:name="com.google.firebase.messaging.default_notification_channel_id" android:value="my_default_channel"/>

        <service android:name="com.evollu.react.fcm.MessagingService" android:enabled="true" android:exported="true">
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT"/>
            </intent-filter>
        </service>

        <service android:name="com.evollu.react.fcm.InstanceIdService" android:exported="false">
            <intent-filter>
                <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
            </intent-filter>
        </service>



       <activity 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>

            <intent-filter>
                <action android:name="fcm.ACTION.HELLO" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>

        </activity>
        <activity android:name="com.facebook.react.devsupport.DevSettingsActivity" />
    </application>

</manifest>

App.js

async componentDidMount() {
// create NotificationChannel for future use!
    FCM.createNotificationChannel({
      id: 'my_default_channel',
      name: 'Default',
      description: 'used for example',
      priority: 'high'
    });

    // initially user get InitialNotification frim the app if any pending
    FCM.getInitialNotification().then(notif => {
      console.log("getInitialNotification Notification : => ", notif);

      // if notif.targetScreen is details screen then it will redirect to details screen directly!
      if (notif && notif.targetScreen === "detail") {
        setTimeout(() => {
          this.props.navigation.navigate("Detail");
        }, 500);
      }
    });

    // added notification listener for getting any notification called below function then
    this.notificationListener =  FCM.on(FCMEvent.Notification, async (notif) =>  {
      console.log("FCMEvent.Notification Notification : => ", notif);

      if (Platform.OS === 'ios' && notif._notificationType === NotificationType.WillPresent && !notif.local_notification) {
        notif.finish(WillPresentNotificationResult.All);
        return;
      }

      // if user tap to notification bar then open app then below condition will follow up and redirect to details screen!
      if (notif.opened_from_tray) {
        if (notif.targetScreen === 'detail') {
          setTimeout(() => {
            navigation.navigate('Detail')
          }, 500)
        }
        setTimeout(() => {
          alert(`User tapped notification
${JSON.stringify(notif)}`)
        }, 500)
      }

      // check whether app is in background or foreground for generate notification
     if (AppState.currentState !== 'background'){
        this.showLocalNotification(notif);


    });

    // getting user permission for sending notification or not ?
    try {
      let result = await FCM.requestPermissions({
        badge: true,
        sound: true,
        alert: true
      });
      console.log("Notification requestPermissions : => ", result)
    } catch (e) {
      console.error(e);
    }

    // Generating token for particular user wise send notification
    FCM.getFCMToken().then(token => {
      FCM.subscribeToTopic("channelToTopic");
      console.log("Notification token : => ", token);
      this.setState({ token: token || "" });
    });

    // Get APNSTOKEN for only ios
    if (Platform.OS === "ios") {
      FCM.getAPNSToken().then(token => {
        console.log("APNS TOKEN (getFCMToken)", token);
      });
    }
  }

  // show notification when app is in foreground and getting any new notification
  showLocalNotification = (notif) => {
    FCM.presentLocalNotification({
      channel: 'my_default_channel',
      id: new Date().valueOf().toString(),
      title: notif.fcm.title,
      body: notif.fcm.body,
      priority: "high",
      badge: 1,
      number: 1,
      ticker: "My Notification Ticker",
      auto_cancel: true,
      big_text: "Show when notification is expanded",
      sub_text: "This is a subText",
      wake_screen: true,
      group: "group",
      icon: "ic_launcher",
      ongoing: true,
      my_custom_data: "my_custom_field_value",
      lights: true,
      show_in_foreground: true
    });
  };

我在过去 2 个月里一直在遭受这个问题的困扰，并且没有得到很好的解决方案，就像我做了很多新尝试来解决问题但最终没有成功一样.

I'm suffering this issue from last 2 months and not get it well solution for the same as i doing so many new attempt to resolve issue but at the end not getting any succeed.

推荐答案

根据官方Githubreact-native-fcm,该库已折旧.您可以使用react-native-firebase用于生成通知.我能够在大约 2 小时内为 android 获取通知.如果你想要我可以分享的代码.祝你好运.

According to the official Github of react-native-fcm, this library is depreciated. You can use the react-native-firebase for generating notification. I was able to get the notifications working in about 2 hours for android. If you want the code I can share it. good luck.

更新 - 抱歉，由于我的办公室帐户，我无法早点回答.

Update - Sorry I couldn't answer earlier because of my office account.

这是我用于显示 android 前台通知的代码.

This is my code for showing android foreground notifications.

firebase.messaging()
        .subscribeToTopic(this.state.user.user_name)
        .then(response => console.log('response from FCM TOPIC' + response))
        .catch(error =>  console.log('error from FCM TOPIC'+ error));

        this.notificationListener = firebase.notifications().onNotification(notification => {
            let notificationMessage = notification._android._notification._data.action;
            let recordId = notification._android._notification._data.recordID;

            let { title, body } = notification;
            //  console.log('ttttt', notification)
            // notification.android.setAutoCancel(false)
            console.log(title, body, notificationMessage, recordId);


            const channelId = new firebase.notifications.Android.Channel(
                'Default',
                'Default',
                firebase.notifications.Android.Importance.High
            );
            firebase.notifications().android.createChannel(channelId);

            let notification_to_be_displayed = new firebase.notifications.Notification({
                data: notification._android._notification._data,
                sound: 'default',
                show_in_foreground: true,
                title: notification.title,
                body: notification.body,
            });

            if (Platform.OS == 'android') {
                notification_to_be_displayed.android
                    .setPriority(firebase.notifications.Android.Priority.High)
                    .android.setChannelId('Default')
                    .android.setVibrate(1000);
            }
            console.log('FOREGROUND NOTIFICATION LISTENER: 
', notification_to_be_displayed);

            firebase.notifications().displayNotification(notification_to_be_displayed);
        });

这篇关于推送通知未在 Android 前台显示的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！