Notifications are seen in most Android apps. The main purpose of displaying notifications inside any application is to grab users' attention towards the application and remind them to use the application. Notifications that are displayed in mobile applications display promotional messages, offers, or any updates on features within an application. In most cases, notifications which are sent to mobile applications are sent via Firebase. Firebase is a googles cloud service platform that provides a service with which we can send real-time push notifications to mobile app users. For displaying push notifications to our potential users we have to integrate our application with Firebase and we will be able to send the notifications to all our users from the Firebase console. In this video, we will be building a simple Firebase push notification flutter application for displaying push notifications for mobile applications. We will be using firebase cloud messaging for implementing push notifications within our application. We will be building this application using dart as a programming language. We will be using Android studio as an IDE. This project will surely help beginner or intermediate level Android developers to brush up and enhance their Android development skills. 

Related Article - https://www.geeksforgeeks.org/background-local-notifications-in-flutter/