Create notification in android

Intent i = new Intent(Intent.ACTION_VIEW);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, i,

 PendingIntent.FLAG_UPDATE_CURRENT);

NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
        .setAutoCancel(true)
        .setContentTitle("Intizone")
        //.setContentText(message+"\n"+url)        .setStyle(new NotificationCompat.BigTextStyle().bigText(message))
        .setContentText(message)
        .setSmallIcon(R.mipmap.ic_launcher)
        .setContentIntent(pendingIntent);

NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

Notification notification = builder.build();
notification.defaults |= Notification.DEFAULT_VIBRATE;
notification.defaults |= Notification.DEFAULT_SOUND;
notification.flags |= Notification.FLAG_SHOW_LIGHTS;
notification.ledARGB = 0xffffffff;
notification.ledOnMS = 300;
notification.ledOffMS = 1000;

manager.notify(0, notification);