Pal taki

package com.nukasoft.ayuntamientosnukasoft.FCM;


import android.annotation.SuppressLint;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Build;
import android.support.v4.app.NotificationCompat;

import com.google.firebase.messaging.FirebaseMessagingService;
import com.google.firebase.messaging.RemoteMessage;
import com.nukasoft.ayuntamientosnukasoft.Display;

import java.util.Map;

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    final static String NOTIFICATION_CHANNEL_ID = "NukaNoti";

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);

        if(remoteMessage.getData() != null)
            sendNotification(remoteMessage);

    }

    private void sendNotification(RemoteMessage remoteMessage) {

        Map<String, String> data = remoteMessage.getData();
        String title = data.get("title");
        String content = data.get("content");
        String aviso = "enviadaNoti";

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

        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

            @SuppressLint("WrongConstant") NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "Notificacion", NotificationManager.IMPORTANCE_MAX);

            notificationChannel.setDescription("Canal para las notificaciones");
            notificationChannel.enableLights(true);
            notificationChannel.setLightColor(Color.RED);
            notificationChannel.setVibrationPattern(new long[]{0, 1000, 500, 1000});
            notificationChannel.enableVibration(true);

            notificationManager.createNotificationChannel(notificationChannel);

        }

        Intent intent = new Intent(getApplicationContext(), Display.class);
        intent.putExtra("title", title);
        intent.putExtra("content", content);
        intent.putExtra("aviso", aviso);

        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(), 0, intent,0);

        NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID);

        notificationBuilder.setAutoCancel(true)
                .setDefaults(Notification.DEFAULT_ALL)
                .setWhen(System.currentTimeMillis())
                .setSmallIcon(android.support.v4.R.drawable.notification_icon_background)
                .setTicker("Notificacion")
                .setContentTitle(title)
                .setContentText(content)
                .setContentIntent(pendingIntent)
                .setContentInfo("info");

        notificationManager.notify(1, notificationBuilder.build());

    }
}