我有一个android应用程序,我正在用一些方法在app图标上显示通知号。现在我想在收到通知时设置这个数字。
我想我应该在收到通知时设置这个数字,所以我在onMessageReceived方法中设置它。但是,我的问题是,当我的应用程序在后台时,onMessageReceived方法未被调用,因此通知号未设置。
下面是我的代码。我在onMessageReceived中设置了这个数字。我已经测试了setBadge方法,并且可以验证它是否有效。问题是onMessageReceived不被调用,所以setBadge也不被调用,这不会设置数字。

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {

    // TODO(developer): Handle FCM messages here.
    Log.d(TAG, "From: " + remoteMessage.getFrom());
    Conts.notificationCounter ++;
    //I am setting in here.
    setBadge(getApplicationContext(),Conts.notificationCounter  );
    Log.e("notificationNUmber",":"+ Conts.notificationCounter);

    // Check if message contains a data payload.
    if (remoteMessage.getData().size() > 0) {
        Log.d(TAG, "Message data payload: " + remoteMessage.getData());
    }

    // Check if message contains a notification payload.
    if (remoteMessage.getNotification() != null) {
        Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
    }

    // Also if you intend on generating your own notifications as a result of a received FCM
    // message, here is where that should be initiated. See sendNotification method below.
}
// [END receive_message]



public static void setBadge(Context context, int count) {
    String launcherClassName = getLauncherClassName(context);
    if (launcherClassName == null) {
        Log.e("classname","null");
        return;
    }
    Intent intent = new Intent("android.intent.action.BADGE_COUNT_UPDATE");
    intent.putExtra("badge_count", count);
    intent.putExtra("badge_count_package_name", context.getPackageName());
    intent.putExtra("badge_count_class_name", launcherClassName);
    context.sendBroadcast(intent);
}

public static String getLauncherClassName(Context context) {

    PackageManager pm = context.getPackageManager();

    Intent intent = new Intent(Intent.ACTION_MAIN);
    intent.addCategory(Intent.CATEGORY_LAUNCHER);

    List<ResolveInfo> resolveInfos = pm.queryIntentActivities(intent, 0);
    for (ResolveInfo resolveInfo : resolveInfos) {
        String pkgName = resolveInfo.activityInfo.applicationInfo.packageName;
        if (pkgName.equalsIgnoreCase(context.getPackageName())) {
            String className = resolveInfo.activityInfo.name;
            return className;
        }
    }
    return null;
}

当我搜索这个issue时,我发现如果来的消息是display message,那么只有app是前台时才会调用onMessageReceived。但如果来的消息是数据消息,那么即使应用程序是后台,也会调用onMessageReceived
但我的朋友告诉我谁在发送通知(服务器端),消息已经作为显示和数据消息发送。他说数据对象已填充。
下面是来函的json,它有数据对象。
{
   "to":"my_device_id",
   "priority":"high",

   "notification":{
      "body":"Notification Body",
      "title":"Notification Title",
      "icon":"myicon",
      "sound":"default"
   },

   "data":{
      "Nick":"DataNick",
      "Room":"DataRoom"
   }
}

如果我只使用数据对象,则会像他们所说的那样调用onMessageReceived,但时间通知不会显示在顶部。
如果消息也是数据消息,为什么不调用onMessageReceived。我应该做些不同的事情来处理数据消息吗?它在客户端的显示消息处理中的工作是否相同。
任何帮助都将不胜感激。提前谢谢。

最佳答案

除非即将到来的json只包含我从firebase支持中学到的数据有效负载,否则无法调用onMessageReceived。
因此,我必须使用数据有效负载,但如果您使用数据有效负载,它不会在顶部显示通知,因此您应该使用数据有效负载信息创建自定义通知。
因此,当我在onMessageReceived中获得数据有效负载时,我向自己发送了通知。我在给自己发送通知后立即将徽章设置为收到的邮件。
以下代码是最终版本。

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    //for data payload
    // Check if message contains a data payload.
    if (remoteMessage.getData().size() > 0) {

        Log.d(TAG, "Message data payload: " + remoteMessage.getData());
        title = remoteMessage.getData().get("title");
        sendNotification(remoteMessage.getData().get("body"), title);
        badge = Integer.parseInt(remoteMessage.getData().get("badge"));
        Log.e("notificationNUmber",":"+badge);
        setBadge(getApplicationContext(), badge);

    }
    //for notification payload so I did not use here
    // Check if message contains a notification payload.
    if (remoteMessage.getNotification() != null) {

        Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());

    }

    // Also if you intend on generating your own notifications as a result of a received FCM
    // message, here is where that should be initiated. See sendNotification method below.
}
// [END receive_message]

private void sendNotification(String messageBody, String title) {
    Intent intent = new Intent(this, MainMenuActivity.class);
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, notify_no /* Request code */, intent,
            PendingIntent.FLAG_ONE_SHOT);
    if (notify_no < 9) {
        notify_no = notify_no + 1;
    } else {
        notify_no = 0;
    }
    Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
            .setSmallIcon(R.drawable.ic_launcher_3_web)
            .setContentTitle(title)
            .setContentText(messageBody)
            .setAutoCancel(true)
            .setSound(defaultSoundUri)
            .setContentIntent(pendingIntent);

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

    notificationManager.notify(notify_no + 2 /* ID of notification */, notificationBuilder.build());
}

谢谢大家。

08-03 21:12