Android Firebase 通知未出现在 android 版本 8 或更高版本中[重复]

Question

通知在 android 8 或更高版本中不显示，但在 android 8 更低版本中可以正常工作

这就是我尝试的方法

String code,code1,code2,title,message,image,urlImage;
@Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        kode = remoteMessage.getData().get("code");
        kode1 = remoteMessage.getData().get("code1");
        kode2 = remoteMessage.getData().get("code2");
        title = remoteMessage.getData().get("title");
        message = remoteMessage.getData().get("message");
        image = remoteMessage.getData().get("image");
        urlImage = remoteMessage.getData().get("image");


        sendNotification_1(title,message, bitmap, code);

}


private void sendNotification_1(String title,String messageBody, Bitmap image, String kode){
        Intent intent = new Intent(this, Home.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        intent.putExtra("directto", kode);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
                PendingIntent.FLAG_ONE_SHOT);
        Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        if(image != null){
            NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
                    .setLargeIcon(convertToBitmap())/*Notification icon image*/
                    .setSmallIcon(R.drawable.logostar)
                    .setContentTitle(title)
                    .setContentText(messageBody)
                    .setStyle(new NotificationCompat.BigPictureStyle()
                            .bigPicture(image))
                    .setAutoCancel(true)
                    .setSound(defaultSoundUri)
                    .setContentIntent(pendingIntent);
            NotificationManager notificationManager =
                    (NotificationManager) 
            getSystemService(Context.NOTIFICATION_SERVICE);
            notificationManager.notify(0 /* ID of notification */, 
            notificationBuilder.build());
        }
    }

以上是我的代码，在 android 8 更高版本中仍然无法使用

按照大家的建议，在我编辑的代码下方 但还是不行

Answer 1

需要通知渠道

NotificationChannel mChannel = null;


if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            mChannel = new NotificationChannel(idChannel, context.getString(R.string.app_name), importance);
            // Configure the notification channel.
            mChannel.setDescription(context.getString(R.string.alarm_notification));
            mChannel.enableLights(true);
            mChannel.setLightColor(Color.RED);
            mChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
            mNotificationManager.createNotificationChannel(mChannel);
        } else{
}

Answer 2

从 android8 开始，需要一个与所有通知关联的频道。

if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O)
        {
            int importance = NotificationManager.IMPORTANCE_HIGH;
            NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "NOTIFICATION_CHANNEL_NAME", importance);
            notificationChannel.enableLights(true);
            notificationChannel.setLightColor(Color.RED);
            notificationChannel.enableVibration(true);
            notificationChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
            assert mNotificationManager != null;
            mBuilder.setChannelId(NOTIFICATION_CHANNEL_ID);
            mNotificationManager.createNotificationChannel(notificationChannel);
}