public class ReactNativeFirebaseMessagingService extends FirebaseMessagingService {
...
@Override
  public void handleIntent(Intent intent) {
    Bundle extras = intent.getExtras();

    try {
      RemoteMessage message = new RemoteMessage(extras);
      RemoteMessage.Notification notificationData = message.getNotification();

      // Short-circuit if this is not a display notification
      if (notificationData == null) {
        super.handleIntent(intent);
        return;
      }

      // 1. Filter the notification as needed using data payload, clickAction, etc.
      if (message.getData().containsKey("mydata")) {
        // 2. Manually display notifications that match your filter
        Map<String, String> data = message.getData();

        // Create an intent that will be triggered when the user clicks the notification
        for (Map.Entry<String, String> entry : data.entrySet()) {
          intent.putExtra(entry.getKey(), entry.getValue());
        }
        super.handleIntent(intent);
        return;
      }

    } catch (Exception e) {
      super.handleIntent(intent);
      return;
    }

    // 3. Fall-through to this for everything else
    super.handleIntent(intent);
  }
  ...
}

public static List b() throws Exception {
       ArrayList var0;
       var0 = new ArrayList.<init>();
       if (VERSION.SDK_INT < 23) {
           return var0;
       } else {
           StatusBarNotification[] var1;
           int var2 = (var1 = ((NotificationManager)e.a.getSystemService("notification")).getActiveNotifications()).length;

           for(int var3 = 0; var3 < var2; ++var3) {
               StatusBarNotification var4;
               Notification var5;
               Bundle var6;
               Bundle var10000 = var6 = (var5 = (var4 = var1[var3]).getNotification()).extras;
               Bundle var7;
               var7 = new Bundle.<init>();
               Bundle var8;
               var10000 = var8 = var10000.getBundle("notifee.notification");
               Bundle var9 = var6.getBundle("notifee.trigger");
               if (var10000 == null) {
                   Bundle var10001 = var8 = new Bundle;
                   var10001.<init>();
                   var10001.putString("id", "" + var4.getId());
                   Object var10;
                   if ((var10 = var6.get("android.title")) != null) {
                       var8.putString("title", var10.toString());
                   }

                   if ((var10 = var6.get("android.text")) != null) {
                       var8.putString("body", var10.toString());
                   }

                   Object var11;
                   if ((var11 = var6.get("android.subText")) != null) {
                       var8.putString("subtitle", var11.toString());
                   }

                   var6 = new Bundle.<init>();
                   if (VERSION.SDK_INT >= 26) {
                       var6.putString("channelId", var5.getChannelId());
                   }

                   var6.putString("tag", var4.getTag());
                   var6.putString("group", var5.getGroup());
                   var8.putBundle("android", var6);
                   var7.putString("id", "" + var4.getId());
               } else {
                   var7.putString("id", "" + var8.get("id"));
               }

               if (var9 != null) {
                   var7.putBundle("trigger", var9);
               }

               var7.putBundle("notification", var8);
               var7.putString("date", "" + var4.getPostTime());
               var0.add(var7);
           }

           return var0;
       }
   }