如果通知到来并且用户清除来自android中通知托盘的所有通知，如何在活动中显示指示器

Question

我有一个Activity，其中有一个标签栏，每个标签打开一个不同的片段。我想要做的是，如果收到通知并且应用程序处于后台并且用户没有点击通知但是直接打开应用程序，那时我想在选项卡上显示一个指示符，通知就像whatsapp和instagram显示它。 我可以通过从通知服务类发送广播并在该活动中接收广播来打开该活动，但如果应用程序关闭，那么如果用户直接输入应用而不是点击，则我的广播逻辑不起作用通知，我无法检测通知发送到哪个选项卡。 那么我还有其他任何逻辑可以完成这项任务。 提前谢谢。

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.content.LocalBroadcastManager;
import android.text.TextUtils;
import android.util.Log;

import com.google.firebase.messaging.FirebaseMessagingService;
import com.google.firebase.messaging.RemoteMessage;
import com.ottice.ottice.AppController;
import com.ottice.ottice.DashboardActivity;
import com.ottice.ottice.utils.Common;
import com.ottice.ottice.utils.NotificationUtils;
import com.ottice.ottice.utils.PrefrencesClass;

import org.json.JSONException;
import org.json.JSONObject;

import java.util.Map;

/**
* TODO: Add a class header comment!
*/

public class MyFirebaseMessagingService extends FirebaseMessagingService {

private static final String TAG =        MyFirebaseMessagingService.class.getSimpleName();
private NotificationUtils notificationUtils;
private Intent resultIntent;

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    Log.e(TAG, "From: " + remoteMessage.getFrom());

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

    // Check if message contains a data payload.
    if (remoteMessage.getData().size() > 0) {
        Map<String, String> message = remoteMessage.getData();
        try {
            JSONObject json = new JSONObject(message);
            Log.e("TITLE",""+json);
            handleDataMessage(json);
        } catch (Exception e) {
            Log.e(TAG, "Json Exception: " + e.getMessage());
        }
    }
}

@Override
public void onDeletedMessages() {
    super.onDeletedMessages();
}



private void handleNotification(String message) {
    if (!NotificationUtils.isAppIsInBackground(getApplicationContext())) {

        if(AppController.currentFragment != null){
            Log.e("CURRENT   FRAGMENT",""+AppController.currentFragment.get().getClass().getSimpleName());
            // app is in foreground, broadcast the push message
            Intent pushNotification = new Intent(Common.PUSH_NOTIFICATION);
            pushNotification.putExtra("message", message);
                LocalBroadcastManager.getInstance(this).sendBroadcast(pushNotification);

            // play notification sound
            NotificationUtils notificationUtils = new    NotificationUtils(getApplicationContext());
            notificationUtils.playNotificationSound();
        }
    }
}



private void handleDataMessage(JSONObject data) {

    notificationUtils = new NotificationUtils(getApplicationContext());
    resultIntent = new Intent(getApplicationContext(), DashboardActivity.class);

    try {
        String title = data.getString("time");
        String message = data.getString("message");

        Log.e(TAG, "title: " + title);
        Log.e(TAG, "message: " + message);


        resultIntent.putExtra("message", data.toString());
        resultIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);


        if (!NotificationUtils.isAppIsInBackground(getApplicationContext()))    {
            if(AppController.isDashboardActivityActive) {
                if (AppController.currentFragment != null) {
                    // app is in foreground, broadcast the push message
                    Intent pushNotification = new   Intent(Common.PUSH_NOTIFICATION);
                    pushNotification.putExtra("message", message);
                    LocalBroadcastManager.getInstance(this).sendBroadcast(pushNotification);

                } else {
                    Intent pushNotification = new Intent(Common.NOTIFICATION_DATA_RECEIVER);
                       LocalBroadcastManager.getInstance(this).sendBroadcast(pushNotification);

                    // play notification sound
                    notificationUtils.playNotificationSound();
                }
            }else {
                notificationUtils.showNotificationMessage(title, message, resultIntent, null);
                // play notification sound
                notificationUtils.playNotificationSound();

            }
        } else {
            // app is in background, show the notification in notification tray
            notificationUtils.showNotificationMessage(title, message, resultIntent, null);
            // play notification sound
            notificationUtils.playNotificationSound();

        }
    } catch (JSONException e) {
        Log.e(TAG, "Json Exception: " + e.getMessage());
    } catch (Exception e) {
        Log.e(TAG, "Exception: " + e.getMessage());
    }
  }

}