I've already checked this question where I found bellow solution.
NotificationManager mNotificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.setInterruptionFilter(NotificationManager.INTERRUPTION_FILTER_NONE);
But it works for "above lollipop" versions. Can anybody please tell me how I'll be able to control Do not disturb setting such as toggle them, switch between alarm only , Priority only , total silent.
