無論應用是后台還是前台，均未收到FCM通知

Question

使用Firebase通知撰寫人或郵遞員發送通知后未收到通知，盡管我都從兩個人獲得了成功的反饋

• 我已經關注了如何實現它的firebase文檔。

• 我也曾嘗試回答類似問題，但仍未收到通知

• 仍然，當我使用郵遞員時，我得到了成功的答復，但是出現了通知提示

AndroiManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.fcmpushnotification">
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <service android:name=".helper.MyFirebaseMessageService"
            android:exported="false"
            >
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT" />
            </intent-filter>
        </service>

    </application>

</manifest>

FCM服務等級

public class MyFirebaseMessageService extends FirebaseMessagingService {

      @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);

        Log.d("FIREBASETOKEN", "testing if method is called ");

        //checking if , there is any notification
        if (remoteMessage.getNotification()!=null) {
            String title = remoteMessage.getNotification().getTitle();
            String message = remoteMessage.getNotification().getBody();
            NotificationHelper helper = new NotificationHelper();
            helper.setBody(message); helper.setTitle(title);
            NotificationHelper.displayNotification(getApplicationContext(), helper);
            Log.d("FIREBASETOKEN", "notification is not empty");

        }else {
         //Toast.makeText( , "notification is empty" , Toast.LENGTH_LONG).show();
            Log.d("FIREBASETOKEN", "notification is empty");
        }


    }
}

使用郵遞員的身體 {

 "to" : "cI1AZOAfrv8:APA91bFQUcKD6gGIfCHplDXCMCFvgk9K2b-jwsN2g_3omDMM0_y_twT0SpqWYzoBWhzWYhcsedbNZCfsygBqDVT5nECOL9sBM7mKFn_4oxry7H8P_rxVvvPRCTXWitxw4V2xd2Gkbmtb",
 "collapse_key" : "type_a",
 "notification" : {
     "body" : "Body of Your Notification",
     "title": "Title of Your Notification"
 }
}

響應

{
    "multicast_id": 6756762729932992317,
    "success": 1,
    "failure": 0,
    "canonical_ids": 0,
    "results": [
        {
            "message_id": "0:1562751631028566%77e482e477e482e4"
        }
    ]
}

我希望收到通知，並且要記錄onMessageReceived()中的日志，但沒有任何反應

Answer 1

似乎您缺少互聯網許可。 向清單添加以下權限

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

並且您的設備上的互聯網必須打開。