Notifications

Present short messages to the user.

1. Define a notificationBuilder and pass a small icon, content title, and content text as follows:

        val notificationBuilder = NotificationCompat.Builder(context) 
                .setSmallIcon(R.drawable.icon) 
                .setContentTitle("Hello!") 
                .setContentText("We love Android!")

1. Define Intent for activity of your application:

        val result = Intent(context, MyActivity::class.java)

1. Now define the stack builder object that will contain the back stack for the activity as follows:

        val builder = TaskStackBuilder.create(context)

1. Add back stack for the intent:

        builder.addParentStack(MyActivity::class.java)

1. Add intent at the top of the stack:

        builder.addNextIntent(result) 
        val resultPendingIntent = builder.getPendingIntent( 
          0, 
          PendingIntent.FLAG_UPDATE_CURRENT )Define ID for the   
          notification and notify:
        val id = 0 
        notificationBuilder.setContentIntent(resultPendingIntent) 
        val manager = getSystemService(NOTIFICATION_SERVICE) as
        NotificationManager 
        manager.notify(id, notificationBuilder.build())