Airbridge sends silent push notifications to users who have performed any app event at least once in the past 6 months to check if they have deleted the app. These notifications are sent daily between 3:00 PM and 4:00 PM (UTC). Uninstall events can be monitored in the Airbridge reports and raw data export files.

Airbridge uses Firebase Cloud Messaging (FCM) for Android uninstall tracking.

Submit Firebase credentials to Airbridge to enable Android uninstall tracking.

Follow the steps below to get the required credentials from the Google Cloud console.

Follow the steps below to submit the credentials to Airbridge.

1. Navigate to [Settings]>[Uninstall Tracking] in the Airbridge dashboard.

2. Select the [Android] tab.

3. Upload the JSON key file by dropping the file or clicking to select the file.

Test silent push notifications to make sure the notifications are successfully sent to devices. To proceed with the test, click Test silent push and enter the FCM registration token of your test device. For detailed instructions on how to access your FCM registration token, refer to the Firebase documentation.

A success message will be shown when a silent push notification is successfully sent to your test device where the app is installed. A fail message containing the 404 error code will be shown when a silent push notification is successfully sent to a test device where the app is uninstalled.

Find the complete list of error codes below. For details about the error codes, refer to the Firebase documentation.

Testing silent push notifications test does not affect the uninstall event count that is available in Airbridge reports and raw data export files. Note that testing silent push notifications does not result in the actual uninstall event collection.

For uninstall tracking, you must complete the Airbridge SDK setup by following the instructions below.

Add the following code snippet to AndroidManifest.xml.

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

Send the push token created in the Firebase Cloud Messaging (FCM) through the Airbridge SDK.

class MyFirebaseMessagingService : FirebaseMessagingService() {

    override fun onMessageReceived(remoteMessage: RemoteMessage) {
        super.onMessageReceived(remoteMessage)
    }

    override fun onNewToken(token: String) {
        super.onNewToken(token)
        Airbridge.registerPushToken(token)
    }
}

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);
    }

    @Override
    public void onNewToken(String token) {
        super.onNewToken(token);
        Airbridge.registerPushToken(token);
    }
}

A push token may already have been issued in the Firebase Cloud Messaging. Add the code snippets below to send the existing push token as well.

class MyApplication : Application() {

    override fun onCreate() {
        super.onCreate()
        ...
        FirebaseMessaging.getInstance()
            .token
            .addOnSuccessListener {
                Airbridge.registerPushToken(it)
            }
        ...
    }
}

public class MyApplication extends Application {

    @Override
    public void onCreate() {
        super.onCreate();
        FirebaseMessaging.getInstance()
            .getToken()
            .addOnSuccessListener(new OnSuccessListener<String>() {
                @Override
                public void onSuccess(String token) {
                    Airbridge.registerPushToken(token);
                }
            });
    }
}

Attention

この関数は必ずAirbridge SDKの初期化作業の後に呼び出されるように作成してください。

A silent push sends a silent notification without any data. However, depending on the implementation of the onMessageReceived function in the Firebase Cloud Messaging, the silent push notification may be shown to the user. By adding the exception handling code as below, the silent push will not be exposed to the user.

class MyFirebaseMessagingService : FirebaseMessagingService() {

    override fun onMessageReceived(remoteMessage: RemoteMessage) {
        super.onMessageReceived(remoteMessage)
        if (remoteMessage.data.containsKey("airbridge-uninstall-tracking")) {
            return
        } else {
                // handleNotification(remoteMessage) 
        }
    }

    override fun onNewToken(token: String) {
        super.onNewToken(token)
        Airbridge.registerPushToken(token)
    }
}

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        super.onMessageReceived(remoteMessage);
        if (remoteMessage.getData().containsKey("airbridge-uninstall-tracking")) {
            return;
        } else {
            // handleNotification(remoteMessage);
        }
    }

    @Override
    public void onNewToken(String token) {
        super.onNewToken(token);
        Airbridge.registerPushToken(token);
    }
}

After submitting the credentials to Airbridge and completing the SDK setup, the [Enable uninstall tracking] toggle will be activated. Switch on the toggle to start tracking uninstall events.

For more details about uninstall tracking, refer to this article.