{Message:Not Able to Generate Token Successfully

Information technology's my first time using FCM.

I download a sample from firebase/quickstart-android and I install the FCM Quickstart. Only I can't get whatsoever token from the log even hitting the LOG TOKEN button in the app.

And then I endeavour to transport a message with Firebase panel and set to target my app package name. I got incoming letters.

I want to know can FCM be used?GCM everything is ok.

Solution:

Because I am non an Android developer, just a backend developer. So it takes me some time to solve information technology. In my opinion, at that place`re some bugs in the sample app.

Code：

RegistrationIntentService.coffee

          public class RegistrationIntentService extends IntentService {      private static last String TAG = "RegIntentService";       public RegistrationIntentService() {         super(TAG);     }      @Override     protected void onHandleIntent(Intent intent) {         Cord token = FirebaseInstanceId.getInstance().getToken();         Log.i(TAG, "FCM Registration Token: " + token);     } }                  

MyFirebaseInstanceIDService.java

          public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {      private static final Cord TAG = "MyFirebaseIIDService";      /**      * Called if InstanceID token is updated. This may occur if the security of      * the previous token had been compromised. Note that this is called when the InstanceID token      * is initially generated and so this is where you would think the token.      */     // [START refresh_token]     @Override     public void onTokenRefresh() {         // Get updated InstanceID token. //        String refreshedToken = FirebaseInstanceId.getInstance().getToken(); //        Log.d(TAG, "Refreshed token: " + refreshedToken); // //        // TODO: Implement this method to send whatever registration to your app's servers. //        sendRegistrationToServer(refreshedToken); //         Intent intent = new Intent(this, RegistrationIntentService.class);         startService(intent);     }     // [END refresh_token]      /**      * Persist token to third-party servers.      * <p>      * Modify this method to acquaintance the user's FCM InstanceID token with any server-side account      * maintained past your application.      *      * @param token The new token.      */     private void sendRegistrationToServer(String token) {         // Add custom implementation, as needed.     } }                  

Add this in the MainActivity.coffee.

                      Intent intent = new Intent(this, RegistrationIntentService.class);         startService(intent);                  

After do above，you lot get the Token in Logcat. But finally, I detect a convenient mode to get information technology.Just utilize debug mode to install the sample app and you tin can get the token when you first fourth dimension to install it.

Only I don't know why it can't print the log when I install it. Maybe be related to the mobile organisation.

And then why I can't get the Notification. FirebaseMessagingService.onMessageReceived did non call sendNotification

bonnerwhillazies.blogspot.com

Source: https://stackoverflow.com/questions/37787373/firebase-fcm-how-to-get-token

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