Notifications Android

Notifications.java

        Intent intent = new Intent(this, HomeActivity.class);
         intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        intent.putExtra(Constants.IS_FROM_NOTIFICATION, true);
        sendBroadcast(new Intent(Constants.REFRESH_STATUS));

        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent,
                PendingIntent.FLAG_ONE_SHOT);


        NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        NotificationCompat.Builder builder = null;
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
            int importance = NotificationManager.IMPORTANCE_DEFAULT;

            NotificationChannel notificationChannel;
//            if (type.equals("1") || type.equals("2"))
            notificationChannel = new NotificationChannel("TripId", "Trip", importance);
//            else
//                notificationChannel = new NotificationChannel("ChatID", "Chat", importance);

            notificationManager.createNotificationChannel(notificationChannel);
            builder = new NotificationCompat.Builder(getApplicationContext(), notificationChannel.getId());
            builder.setPriority(NotificationManager.IMPORTANCE_HIGH);
        } else {
            builder = new NotificationCompat.Builder(getApplicationContext());
            builder.setPriority(Notification.PRIORITY_MAX);
        }
        Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        builder = builder
                .setSmallIcon(R.mipmap.ic_notification_icon)
//                .setColor(ContextCompat.getColor(context, R.color.color))
                .setContentTitle(title)
                .setTicker(getString(R.string.app_name))
                .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher))
                .setContentText(message)
                .setDefaults(Notification.DEFAULT_ALL)
                .setAutoCancel(true)
                .setContentIntent(pendingIntent);


        notificationManager.notify((int) ((new Date().getTime() / 1000L) % Integer.MAX_VALUE), builder.build());