Пуш уведомления android firebase

How to Send Push Notifications With Firebase in Android (Guide)

In this guide, you’ll learn how you can send push notifications using Firebase in Android.

Let’s get started.

Curious to see the end result of this tutorial? Watch!

What is a Push Notification?

Push notification is a simple message that appears with a notification in the notification tray or like a popup messaging – depends on the platform.

Push Notifications are usually pushed from backend servers to the clients like Firebase in this case. It is the way to deliver users a message without opening the app. It is a highly effective tool for developers and advertisers to re-target/re-engage your dormant users.

As you can see, the push notifications get benefits most from the eCommerce stores since users are excited about the new products.

What is FCM (Firebase Cloud Messaging)

Firebase Cloud Messaging is a new version of Google Cloud Messaging or GCM that is a cloud cross-platform messaging solution. You can use Firebase Cloud Messaging for any kind of end-user device including iOS, Android, or even web at no-cost.

Firebase allows two types of messages:

• Notification Notifications. The customer application will act differently based on if it is from the background or the foreground once it receives the FCM message. Considering that the Android program assembles the telling to you personally, this is among the simplest methods to send notifications to your customers. If your program receives an FCM message whenever it’s in the foreground, then the program will not manage this telling automatically, leaving one to process the message on your program’s onMessageReceived() callback. We are going to be researching onMessageReceived() later in this tutorial, but just bear in mind that if your program receives a message whenever it’s in the foreground, then by default this message will not be displayed to the consumer.
• DataNotifications, you may use info messages to send customized data components to the customer program. But, FCM does set a 4KB limitation on those information messages, therefore if your payload exceeds 4KB then you will want to fetch further information using WorkManager or the JobScheduler API.

NOTE: In this tutorial, we’ll be sending a notification message only.

Send a Push Notification from Google Firebase (Step by Step)

Here is the step by step guide how you can implement Firebase push notification with an example:

1. Things You Need to Get Started

2. Create an Application in Android Studio

1. Open Android Studio and create a new project.
2. Enter the app details – the app name, domain name, location – and leave the rest as default i.e., the empty activity, and minimum Android version. In my case, the package name of my app is ‘com.firebasetutorials.testingnotification’ but you can have one of your choices.
3. After Android Studio finishes the building App for you, leave it, and move to the next step, we will soon get back to Android Studio.

Creating Application in Android Studio for Firebase Push Notification

3. Setup Firebase for Push Notification

There are three steps to set up Firebase for your Android app notification:

Sign up for Firebase

Before anything, you need a Firebase account. Click here and signup for Firebase Console or sign in using your Google account.

1. Create a Project

Now visit the Firebase Console and hit ‘Add Project’. Enter Project name, select Country/region. And hit ‘Create Project’

Create project at Firebase Console for Android Push Notification

1. Register App with Firebase

There are three simple steps to get your Android App Registered with Firebase:

Register App

After your first project is completed, you’ll see a page like below. Hit ‘Add Firebase to your Android App’

Adding Android app at Firebase Console for Android Push Notification

Enter ‘Android package name’. In my case, it is ‘com.firebasetutorials.testingnotification’ – you can enter one of your choices.

NOTE: Package name should be exactly the same as the app package name. Otherwise it will not work.

Enter ‘App nickname’. I’m entering the ‘Testing Notification App’ – you can enter anything; it has nothing to do with your app.

The third field is for ‘Debug signing certificate SHA-1’ you can skip it at this point as we are not going to use Firebase Authentication.

Hit ‘Register App’ to get your app registered with Firebase

Registering App for Firebase Console Notification

Download Config Files

Hit ‘Download google-services.json’ button to download a JSON file. Save the JSON file under the app directory of your Android Studio project we just recently created.

Downloading Config file for Android from Firebase Console

Add Firebase SDK

After downloading the JSON file under the App Directory of your project hit Continue on Firebase Console Dialog.

In Android Studio, open build.gradle file. You will find it in the project directory, but not the one that is in your app directory. Add the following line of code inside dependencies:

classpath ‘com.google.gms:google-services:3.2.0’

After adding the dependencies, your project will look like this:

Added classpath in build.gradle for Firebase Push Notification in Android

After adding this, you will see a yellow message, asking you to sync the project. You can ignore it at the moment. Now head over to app-level build.gradle file. You will find it under the app directory of your project.

Add the following lines of in dependencies section

And at the end, outside of the dependencies section, add the following line and hit ‘Sync Now’

And your build.gradle file will look like this:

Implement Firebase SDK in Android Studio for Push notification | Build.gradle (App) Screenshot

That’s all we need to do in Android Studio.

Send Notification from Firebase Console

Get back to Firebase Console. Open the Firebase project, on the left pane select ‘Notification’ or click here

Firebase Notification in Firebase Console

Hit ‘SEND YOUR FIRST MESSAGE’

Send First Notification in Firebase Console

And you’ll see the ‘Compose Message‘ form, where you can enter the details.

In ‘Message Text‘ enter the message that you want to be displayed in the Notification Bar of your Android App

In ‘Message Label‘ you can enter the message nickname, it has to do nothing with the notification at the client-side, it is just for saving purpose in Firebase Console.

In the ‘Delivery Date‘ drop-down, you can select the delivery time. If you select ‘Send Now‘ your message will be sent and displayed instantly. If you select ‘Send Later’ then some more options will be displayed asking for when you want to send the notification to your users.

You can mark the ‘Recipient Time Zone‘ option and your message will be delivered according to the recipient time zone or you can provide any custom timezone.

Recipient Time Zone is very useful because sometimes we want to send notification on some custom events like New Year. Due to timezone differences, your message can be shown to users before New Year and make them feel annoyed. So it’s better to use the ‘Recipient Time Zone‘ option with that kind of notification.

In this tutorial, we will select the ‘Send Now’ option to make the notification sent right now.

In the target section, we can target a custom range of users depending on their behavior and much more. We will be covering that all in a whole new section.

In the next drop-down, select the app package name. You can select multiple apps simultaneously, but they all need to be on the same project.

After that, there are ‘Conversion events’ options, here you can track the analytics data of your notification. The ‘Sent‘ and ‘Opened‘ are added by default, but you can add more.

Sent and Opened are shown in the Notification Section in Firebase to show you how many users received the notification message and how many opened it. We are not adding a conversion event for the sake of this tutorial.

In the end, there are few ‘Advanced Options’, but we will keep the default. Those are for Data Messages; we will cover that all in detail later.

Now hit, ‘Send Message‘ to make the notification sent to the client app.

Your Notification will be displayed on your Android Phone, and if you tap on that notification, it will open the app.

You can watch the video above if you don’t understand the text.

Ask any questions in the comment section below, our experts will be happy to help you at no extra cost.

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Часть 1. Push — уведомления для Android и iOS при помощи Firebase Cloud Messages

Это простой прямой подход, касающийся того, как реализовать push-уведомление в Android, а также iOS, используя плагин cordova plugin for fcm для проекта Cordova и Google Firebase FCM в виде облачного сервера обработки сообщений.

Использование FCM в платформе Android

1. Создание проекта Cordova. Сначала необходимо иметь какой-то проект Cordova с добавленной платформой Android:

далее к этому проекту мы добавляем плагин cordova-plugin-fcm командой:

В процессе установки данного плагина система нам выведет ряд ошибок, к примеру, скажет, что у нас отсутствует файл google-services.json:

данный файл мы должны скачать из консоли Google Firebase в процессе создания приложения и находиться он должен в корневой директории проекта Cordova.

2. Создание облачного проекта Firebase. В консоли google firebse console жмем на кнопку «Добавить» и создаем новое облачный проект для Android, iOS и WEB — проектов:

После нажатия на кнопку «Создать проект» следующим шагом является добавление возможности создания облачных уведомлений через Firebase Cloud Messages и для этого необходимо нажать на пункту «Notifications» и далее следующее окно предложит ввести данные приложения для Android или iOS:

На данном этапе нажимаем на Android и заполняем данные и выйдет окно, требующий заполнения уникального идентификатора:

далее жмем на кнопку «Зарегистрировать приложение» и мы попадем на шаг, где нам предлагают скачать вышеупомянутый файл google-services.json:

данный файл скачиваем и кидаем в корень проекта Cordova pushSample/google-service.json.

Далее жмем «Продолжить» и сервис предложит нам добавить некоторый код в файл сборки build.gradle, который находится в корне платформы Android по пути pushSample/platforms/android/build.gradle:

В скрипте сборки плагина по пути pushSample/platforms/android/cordova-plugin-fcm/pushSample-FCMPlugin.gradle :

В некоторых случаях выше приведенный код может выдавать ошибки и несоответствия и все это выйдет в консоль, как например ниже:

Для решения можно написать костыли принудительного исполнения, прописав их в файл pushSample/platforms/android/build.gradle:

3. Пишем первое уведомление. После добавления кода построения сервисов Google облачный проект предложит нам отправить сообщение:

Перед тем, как написать новое сообщение из консоли в клиентские приложения в виде уведомлений необходимо сначала написать клиентский код, который будет их принимать. Для этого в папке скриптов создаем новый файл www/scripts/script.fcm.js, в котором будем писать код, выполняемый после инициализации всех ресурсов Cordova:

Данный файл подключаем ко всем необходимым страницам нашего проекта Cordova. построим приложение и запустим на эмулятор или на реальное устройство:

И далее и консоли отправляем наше первое уведомление:

жмем на «Отправить сообщение» и ждем его в приложении в виде уведомления, причем, приложение может быть закрыто и уведомление все равно придет и будет видно в верхней части экрана устройства или эмулятора:

Очень важно, чтобы уведомления пришли изначально настроить устройства на прием уведомлений данным приложением в настройках.

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