android - 未收到 FIrebase 消息内容

Question

我正在收到通知，但无法从通知中获取通知正文。我创建了一个 firebase 服务类并添加了依赖项(编译 'com.google.firebase:firebase-messaging:10.2.6')并编辑了 list (

<service
                android:name=".MyFirebaseMessagingService">
                <intent-filter>
                    <action android:name="com.google.firebase.MESSAGING_EVENT"/>
                </intent-filter>
            </service>)

可能是什么原因？

import android.util.Log;

import com.google.firebase.messaging.FirebaseMessagingService;
import com.google.firebase.messaging.RemoteMessage;

public class MyFirebaseMessagingService extends FirebaseMessagingService {
    private static final String TAG = "FCM Service";
    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        // TODO: Handle FCM messages here.
        // If the application is in the foreground handle both data and notification messages here.
        // Also if you intend on generating your own notifications as a result of a received FCM
        // message, here is where that should be initiated.
        Log.d(TAG, "From: " + remoteMessage.getFrom());
        Log.d(TAG, "Notification Message Body: " + remoteMessage.getNotification().getBody());
    }
}

我没有收到任何日志。

Answer 1

**FCM消息有两种类型**

Display Messages: These messages trigger the onMessageReceived() callback only when your app is in foreground

Data Messages: Theses messages trigger the onMessageReceived() callback even if your app is in foreground/background/killed

不要忘记此服务添加 list 文件

<service
    android:name=".MyFirebaseMessagingService">
    <intent-filter>
        <action android:name="com.google.firebase.MESSAGING_EVENT"/>
    </intent-filter>
</service>

<service
    android:name=".MyFirebaseInstanceIDService">
    <intent-filter>
        <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
    </intent-filter>
</service>

在 list 文件中添加 Internet Permision

<uses-permission android:name="android.permission.INTERNET" />