Firebase Integration

Integrate FireBase to the Application#

Step 1: Create Project in the firebase console using your app package name. Ex: com.testapp

Step 2: After the project creation download the google-service.json file which is automatically generated.

Step 3: Add the google-service.json file to your android Application with in the app folder.

Step 4: Add the firebase dependencies in the project level build.gradle file.

buildscript {
    repositories {
        // Check that you have the following line (if not, add it):
        google()  // Google's Maven repository
   }
   dependencies {
       classpath 'com.google.gms:google-services:4.3.13' // google-services plugin
   }
}

allprojects {
   repositories {
       // Check that you have the following line (if not, add it):
       google() // Google's Maven repository
   }
}

Step 5: Apply plugin in app/build.gradle

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'

dependencies {
  implementation platform('com.google.firebase:firebase-bom:30.3.1')
}

Refer Firebase Document

Integrate Firebase Push notification#

Step 1: Add the FCM dependency to your app-level build.gradle file.

implementation 'com.google.firebase:firebase-messaging:23.0.6'

Step 2: Add below line in your app manifest file.

<service android:name=".MyFirebaseMessagingService"
         android:exported="false">
    <intent-filter>
        <action android:name="com.google.firebase.MESSAGING_EVENT" />
    </intent-filter>
</service>

Step 3: Create MyFirebaseMessagingService file in your application that extends FirebaseMessagingService service.

Java
Kotlin

public class MyFirebaseMessagingService extends FirebaseMessagingService {
    @Override
    public void onMessageReceived(@NonNull RemoteMessage message) {
        //Push message will be received here when push notification triggered for this device
    }

    @Override
    public void onNewToken(@NonNull String token) {
         //Whenever Device token will get updated/changed this method will be triggered
         PushNotificationManager.updateFcmToken(token, isSuccess, message) -> {
            
                         });
    }
}

Step 4: Open the AndroidManifest.xml and add below permissions.

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

Step 5: Get the device token and add it in cloud message console.

Java
Kotlin

 FirebaseMessaging.getInstance().getToken()
                .addOnCompleteListener(new OnCompleteListener<String>() {
                    @Override
                    public void onComplete(@NonNull Task<String> task) {
                        if (!task.isSuccessful()) {
                            //Fetching FCM registration token failed
                            return;
                        }
                        
                        //Fetching FCM registration token succeed
                        // Get new FCM registration token
                        String token = task.getResult();
                        PushNotificationManager.updateFcmToken(token, isSuccess, message) -> {
            
                         });
                    }
                });

Step 6: To generate new private key and configure it, please click here

Integrate Firebase Crashlytics#

Step 1: Add the Crashlytics In your project-level build.gradle.

dependencies {
    // Check for v4.3.3 or higher
    classpath 'com.google.gms:google-services:4.3.13'
    classpath "com.google.firebase:firebase-crashlytics-gradle:2.9.1"
}

allprojects {
    repositories {
       // Add repository
        google()  // Google's Maven repository
    }
}

Step 2: Add Crashlytics in your app-level build.gradle

apply plugin: 'com.android.application'
apply plugin:  'com.google.firebase.crashlytics'

dependencies {
 // Add dependency
  implementation 'com.google.firebase:firebase-crashlytics:18.2.12'
}

Note: After added Crashlytics to your application. In first time it will take more than 12 hours to affect the Firebase Crashlytics UI.

Refer Firebase Crashlytics Document