Firebase Console<\/a>.
\n 2. Log in with your Google account.
\n 3. Click the “Add Project” button to create a new project.\n<\/p>\n2.2 Activating Firebase Cloud Messaging<\/h3>\n
\n 1. In the Firebase project dashboard, select “Cloud Messaging.”
\n 2. Verify the server key and sender ID, which will be needed for integration with the Android app later.\n<\/p>\n
3. Setting Up Android Studio Project<\/h2>\n
\n \u25b6 Next, we will learn how to integrate Firebase into the Android project.\n<\/p>\n
3.1 Installing Android Studio<\/h3>\n
\n Install Android Studio and create a new project.
\n Set the minimum SDK version and project language to Java<\/strong> before starting development.\n<\/p>\n3.2 Integrating Firebase<\/h3>\n
\n 1. In Android Studio, select the “Tools” menu and click on “Firebase.”
\n 2. When the Firebase Assistant opens, find “Cloud Messaging” and click on “Set up Firebase Cloud Messaging.”
\n 3. The Firebase SDK will be automatically added to your project.\n<\/p>\n
3.3 Gradle Configuration<\/h3>\n
\nYou need to add the necessary dependencies in the build.gradle (Module: app)<\/code> file.\n<\/p>\n\n\ndependencies {\n implementation 'com.google.firebase:firebase-messaging:23.0.0' \/\/ Change version to the latest\n}\n<\/code>\n<\/pre>\n3.4 AndroidManifest.xml Configuration<\/h3>\n
\n Add configurations to the Android manifest file to enable the use of FCM.\n<\/p>\n
\n\n<manifest xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n package=\"com.example.fcmexample\">\n\n <application\n ...\n >\n\n <service\n android:name=\".MyFirebaseMessagingService\"\n android:exported=\"false\">\n <intent-filter>\n <action android:name=\"com.google.firebase.MESSAGING_EVENT\"\/>\n <\/intent-filter>\n <\/service>\n\n <\/application>\n\n<\/manifest>\n<\/code>\n<\/pre>\n4. Implementing FCM Message Reception<\/h2>\n
\n To receive FCM messages, you need to implement a class that inherits from FirebaseMessagingService.\n<\/p>\n
4.1 Implementing FirebaseMessagingService<\/h3>\n
\n Create a class for receiving messages and override the onMessageReceived method.
\n This method is called when a push notification is received.\n<\/p>\n
\n\nimport com.google.firebase.messaging.FirebaseMessagingService;\nimport com.google.firebase.messaging.RemoteMessage;\n\npublic class MyFirebaseMessagingService extends FirebaseMessagingService {\n @Override\n public void onMessageReceived(RemoteMessage remoteMessage) {\n \/\/ Code for receiving messages\n if (remoteMessage.getNotification() != null) {\n \/\/ Show notification\n showNotification(remoteMessage.getNotification().getTitle(), \n remoteMessage.getNotification().getBody());\n }\n }\n\n private void showNotification(String title, String message) {\n \/\/ Use NotificationManager to display the notification\n }\n}\n<\/code>\n<\/pre>\n5. Sending Messages<\/h2>\n
\n Now let’s learn how to send messages from the server using FCM.
\n We will implement a Node.js server to send messages and learn how to handle errors in the client app.\n<\/p>\n
5.1 Setting Up Node.js Server<\/h3>\n
\n Set up a simple server using Node.js to send messages via FCM.
\n First, install the necessary packages.\n<\/p>\n
\n\nnpm install firebase-admin\n<\/code>\n<\/pre>\n