android - 在后台或应用程序关闭时未收到 Firebase 通知

Question

应用程序在关闭或后台时不会收到通知。下面是处理通知的我的服务类。通知仅在唯一的应用程序运行时有效。

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    private static final String TAG = "MyFMService";
    Random random = new Random();
    int NOTIFICATION_ID = random.nextInt(9999 - 1000) + 1000;

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        sendNotification();


    }

    private void sendNotification() {
        Intent intent = new Intent(this, NotificationDisplay.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent,
                PendingIntent.FLAG_ONE_SHOT);

        Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
                .setSmallIcon(R.drawable.ic_bouddha_icon)
                .setContentTitle("Bouddha Meridian School")
                .setAutoCancel(true)
                .setSound(defaultSoundUri)
                .setContentIntent(pendingIntent);

        NotificationManager notificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

        notificationManager.notify(NOTIFICATION_ID, notificationBuilder.build());
    }
}

Answer 1

你有没有下载 google-service.json 并放在 app 文件夹中？遵循此示例以供引用:http://www.androidhive.info/2012/10/android-push-notifications-using-google-cloud-messaging-gcm-php-and-mysql/