Firebase onTokenRefresh() is not called

Question

In my MainActivityin my log, I can see the token using FirebaseInstanceId.getInstance().getToken() and it display the generated token. But it seems like in my MyFirebaseInstanceIDService where it is extends to FirebaseInstanceIdService, the onTokenRefresh() is not called, where in this function it was said that the token is initially generated here. I needed to call sendRegistrationToServer() that's why I'm trying to know why it doesn't go in the onTokenRefresh().

Here is my code

public class MyFirebaseInstanceIDService  extends FirebaseInstanceIdService {   @Override public void onTokenRefresh() {     // Get updated InstanceID token.     String refreshedToken = FirebaseInstanceId.getInstance().getToken();     Log.d(TAG, "Refreshed token: " + refreshedToken);          sendRegistrationToServer(refreshedToken);     } } 

Answer 1

onTokenRefresh in FirebaseInstanceIdService is only called when a new token is generated. If your app was previously installed and generated a token then onTokenRefresh would not be called. Try uninstalling and reinstalling the app to force the generation of a new token, this would cause onTokenRefresh to be called.

Also be sure that your FirebaseInstanceIdService is properly defined in your AndroidManifest.xml

In your Manifest File.

 <service         android:name="com.bnt.etailers.fcm.MyFireBaseInstanceIDService"         android:exported="false">         <intent-filter>             <action android:name="com.google.firebase.INSTANCE_ID_EVENT" />         </intent-filter>     </service>      <service         android:name="com.bnt.etailers.fcm.GCMNotificationIntentService"         android:exported="false">         <intent-filter>             <action android:name="com.google.firebase.MESSAGING_EVENT" />         </intent-filter>     </service> 

FirebaseInstanceIdService class

public class MyFireBaseInstanceIDService extends FirebaseInstanceIdService {   private static final String TAG = MyFireBaseInstanceIDService.class.getSimpleName();  @Override public void onTokenRefresh() {     // Get updated InstanceID token.     String refreshedToken = FirebaseInstanceId.getInstance().getToken();     Log.d(TAG, "Refreshed token: " + refreshedToken);      if (refreshedToken!=null) {         SettingPreferences.setStringValueInPref(this, SettingPreferences.REG_ID, refreshedToken);     }     // TODO: Implement this method to send any registration to your app's servers.     sendRegistrationToServer(refreshedToken); } // [END refresh_token]  /**  * Persist token to third-party servers.  *  * Modify this method to associate the user's FCM InstanceID token with any server-side account  * maintained by your application.  *  * @param token The new token.  */ private void sendRegistrationToServer(String token) {     // Add custom implementation, as needed. }} 

FirebaseMessagingService class.

public class GCMNotificationIntentService extends FirebaseMessagingService { // Sets an ID for the notification, so it can be updated   public GCMNotificationIntentService() {     super(); }   @Override public void onMessageReceived(RemoteMessage message) {  }} 

Answer 2

I had the same problem like you. My mistake was the following: I placed my <service> tags outside the <application> tag in the AndroidManifest.xml file.

Now mine looks like this:

<application     android:allowBackup="true"     android:icon="@mipmap/ic_launcher"     android:label="@string/app_name"     android:supportsRtl="true"     android:theme="@style/AppTheme">      <service         android:name=".MyFirebaseMessagingService">         <intent-filter>             <action android:name="com.google.firebase.MESSAGING_EVENT"/>         </intent-filter>     </service>      <service         android:name=".MyFirebaseInstanceIDService">         <intent-filter>             <action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>         </intent-filter>     </service> </application> 

And it works without any problem.