Create silent notification

Question

I have function that creates notification. Each time it formats notification it play sound. Is it possible to create silent notification that not plays sound? How to achieve that?

public void sendNotification(String title, String message,boolean playSound) {


        int NOTIFICATION_ID = 234;
        NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        String CHANNEL_ID = "my_channel_01";

        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O)
        {
            CharSequence name = "my_channel";
            String Description = "This is my channel";
            int importance = NotificationManager.IMPORTANCE_HIGH;
            NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);
            mChannel.setDescription(Description);
            mChannel.enableLights(true);
            mChannel.setLightColor(Color.RED);
            mChannel.enableVibration(true);
            mChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
            mChannel.setShowBadge(false);
            notificationManager.createNotificationChannel(mChannel);
        }

        NotificationCompat.Builder builder = new NotificationCompat.Builder(this, CHANNEL_ID)
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentTitle(title)
                .setContentText(message);


        Intent notificationIntent = new Intent(this, MainActivity.class);
        notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
                | Intent.FLAG_ACTIVITY_SINGLE_TOP);
        PendingIntent intent = PendingIntent.getActivity(this, 0, notificationIntent, 0);

        builder.setContentIntent(intent);



        Intent resultIntent = new Intent(this, MainActivity.class);
        TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
        stackBuilder.addParentStack(MainActivity.class);
        stackBuilder.addNextIntent(resultIntent);
        PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
        builder.setContentIntent(resultPendingIntent);

        notificationManager.notify(NOTIFICATION_ID, builder.build());
    }

Prashant.J · Answer 1 · 2020-04-14T19:02:57.467

3

Except using

NotificationManager.IMPORTANCE_HIGH

use

NotificationManager.IMPORTANCE_LOW

You need to use PRIORITY_LOW for devices below Android 7 and use IMPORTANCE_LOW for Android 8 and above.

Also you can use setSound(null, null) method on your NotificationChannel(mChannel)

edited Apr 14 '20 at 19:02

answered Apr 14 '20 at 18:52

Prashant.J

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3

Also take into account that you can not modify a notificationChannel once created (except unistalling the app). So maybe considere having two notifications channels a silent and a sound one – sebasira Apr 14 '20 at 19:46

Create silent notification

1 Answers1