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If you run into any issues (code bugs, grammatical errors, unclear wording, etc.) as you work through this codelab, please report the issue via the Report a mistake link in the lower left corner of the codelab. #Messaging android messages icon how toIn this codelab, you will learn how to use Firebase Cloud Messaging to send push notifications for your Android app, as well as send data. You can also use Firebase Cloud Messages to transfer data from your backend app or from a Firebase project to your users. For example, you can send users a reminder or give them a special promotion, such as a free gift.You can remotely push a notification to a single device or multiple devices. With Firebase Cloud Messaging, you can send notifications to all of your installed app users, or a subset of them, without setting up a server. Usually you would need to set up a server from scratch that can communicate with mobile devices to trigger notifications. What is Firebase Cloud Messaging?įirebase Cloud Messaging is part of the Firebase platform for mobile development. If the notification content is not interesting or timely for the user, they can easily turn off all notifications from your app. Just like all other types of notifications, make sure you respect your users with push notifications. Furthermore, as the number of clients grows, these periodic checks would place too large of a load on networking and processing resources, both for your app's server and for a user's device. This process is tedious and unreliable for users. Without a publish/subscribe model, your app's users would need to periodically check for updates in your app. Push notifications make use of the publish/subscribe pattern, which allows backend apps to push relevant content to interested clients. With a push notification, a shopping app can let you know about stock updates rather than you having to check the stock status everyday. Imagine waiting for a product to be in stock again. #Messaging android messages icon updatePush notifications are a great way to let users know about an update or remind them of a task or feature. They can be delivered to a device regardless of whether your app is running or not. Push notifications are notifications that the server "pushes" to mobile devices. Another important use case of notifications is to remotely send push notifications which can be received even when your app is not running. In the previous codelab, you added notifications to your egg timer which are created and triggered within your app. We recommend that you do all the codelabs in order, because they progress through tasks step-by-step. #Messaging android messages icon seriesThis codelab is part of a series that guides you through using in-app and push notifications. ![]() All the course codelabs are listed on the Advanced Android in Kotlin codelabs landing page. You'll get the most value out of this course if you work through the codelabs in sequence, but it is not mandatory. This codelab is part of the Advanced Android in Kotlin course. ![]()
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