In this chapter, you have learned how to use Firebase functions to send push notifications and to use the notification component from the Wear support library. Notifications are integral components in smart devices; they play a crucial role by reminding users. We have understood the NotificationCompat.Builder class and the WearableExtender class. We have also explored the input method framework and the easiest way to reply with multiple reply mechanisms, such as emojis, voice support, and so on.
