Develop Reference

Receive notification in chat with fcm

Hi there I'm building the chat app using firebase and I would like to push notification when a user send message to another user with FCM.
Any help please

add compile 'com.google.firebase:firebase-messaging:11.8.0' to your app/build.gradle file.
and below code to your AndroidManifest.xml
<service
android:name=".MyFirebaseMessagingService"
android:exported="false">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
<service
android:name=".MyFirebaseInstanceIdService"
android:exported="false">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>
MyFirebaseMessagingService.java
public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = "MyFMService";
#Override
public void onMessageReceived(RemoteMessage remoteMessage) {
// Handle data payload of FCM messages.
Log.d(TAG, "FCM Message Id: " + remoteMessage.getMessageId());
Log.d(TAG, "FCM Notification Message: " +
remoteMessage.getNotification());
Log.d(TAG, "FCM Data Message: " + remoteMessage.getData());
}
}
MyFirebaseInstanceIdService.java
public class MyFirebaseInstanceIdService extends FirebaseInstanceIdService {
private static final String TAG = "MyFirebaseIIDService";
private static final String FRIENDLY_ENGAGE_TOPIC = "friendly_engage";
/**
* The Application's current Instance ID token is no longer valid
* and thus a new one must be requested.
*/
#Override
public void onTokenRefresh() {
// If you need to handle the generation of a token, initially or
// after a refresh this is where you should do that.
String token = FirebaseInstanceId.getInstance().getToken();
Log.d(TAG, "FCM Token: " + token);
// Once a token is generated, we subscribe to topic.
FirebaseMessaging.getInstance()
.subscribeToTopic(FRIENDLY_ENGAGE_TOPIC);
}
}
Hope this will help you

Token generation not working call after migrating from GCM to FCM android project

I have converted a project from GCM to FCM but onTokenRefresh() function not call.
I have followed this link :
https://developers.google.com/cloud-messaging/android/android-migrate-fcm
I have completed follow step
Add Firebase project and add application with SHA1 key
Remove all code of GCM from my android project
Add FCM code
FCM Code:
In manifest.xml
<service android:name=".Commonclass.MyFirebaseMessagingService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
<service android:name=".Commonclass.MyFirebaseInstanceIDService" >
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>
Create two java file
MyFirebaseInstanceIDService.java
public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {
private static final String TAG = "MyFirebaseIIDService";
#Override
public void onTokenRefresh() {
Log.d(TAG, "Refreshed token start");
String refreshedToken = FirebaseInstanceId.getInstance().getToken();
Log.d(TAG, "Refreshed token: " + refreshedToken);
GlobalClass.strDeviceToken = refreshedToken;
Log.e("token",GlobalClass.strDeviceToken);
Log.d(TAG, "Refreshed token end");
storeToken(refreshedToken);
}
private void storeToken(String token) {
//saving the token on shared preferences
SharedPreferences sharedPreferences = getSharedPreferences(GlobalClass.SHARED_PREF_NAME, Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString(GlobalClass.prefFCMToen, token);
editor.apply();
}
}
MyFirebaseMessagingService.java
public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = "MyFirebaseMsgService";
#Override
public void onMessageReceived(RemoteMessage remoteMessage) {
if (remoteMessage.getData().size() > 0) {
//Log.e(TAG, "Data Payload: " + remoteMessage.getData().toString());
try {
Map<String, String> params = remoteMessage.getData();
JSONObject json = new JSONObject(params);
} catch (Exception e) {
Log.e(TAG, "Exception: " + e.getMessage());
}
}
}
}
I follow this google guidelines
https://firebase.google.com/docs/reference/android/com/google/firebase/iid/FirebaseInstanceId
every time I reinstall application but not call onTokenRefresh().

The onTokenRefresh() method doesn't necessarily get called every time the app starts or if it is newly installed. It only triggers on some scenarios (see my answer here).
The implementation looks correct. In order to get the current token, you must first call getToken() somewhere similar to a MainActivity.
The getToken() method can immediately return the current token or null. If its null, it means that the FCM server is not yet finished generating or sending the token back to the client, in which case onTokenRefresh() would trigger upon completion.

Fetch old notification from fcm Android

I am using FCM for notification and it is working good in all scenarios in Foreground and background. My problem is when I am logout from my application and another user send me message, I am not getting any notification as I am logout which is fine, but when I again login in my application I want to receive that old unread notification so how to do this any help would be appreciated following is the code I used
public class FirebaseIDService extends FirebaseInstanceIdService {
private static final String TAG = "FirebaseIDService";
Context ctx = this;
#Override
public void onTokenRefresh() {
// Get updated InstanceID token.
try {
String refreshedToken = FirebaseInstanceId.getInstance().getToken();
Log.d(TAG, "Refreshed token: " + refreshedToken);
} catch (Exception e) {
e.printStackTrace();
}
}
}
public class MyFirebaseMessagingService extends FirebaseMessagingService {
private static final String TAG = "FCM Service";
#Override
public void onMessageReceived(RemoteMessage remoteMessage) {
super.onMessageReceived(remoteMessage);
FirebaseDatabase.getInstance().setPersistenceEnabled(true);
Log.e("remote", remoteMessage.getData().get("type") + "");
Log.e("remoteMessage", remoteMessage.getData() + "");
Log.e("remoteMessagebody", remoteMessage.getData().get("body") + "");
// handling other data also according to my app which i am not mentioning
}
}
I have used this code for fetching old notification but didnot worked
FirebaseDatabase.getInstance().setPersistenceEnabled(true);
and in manifest
<service
android:name=".MyFirebaseMessagingService"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
<service android:name=".FirebaseIDService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>
and in gradle
compile 'com.google.firebase:firebase-messaging:9.2.1'

An FCM message has its own lifetime -- 4 weeks default, could be modified by setting time_to_live in your payload. After that time, the message would be discarded.
What you could do is implement that each notif is saved in a your Server DB, if it is not read yet and you detect that the user re-logs in, re-send them as push notifications, or simply retrieve them in your app and display them as notifications.

How to make a connection between a service and Delphi under Android?

I add this in the android manifest to create a service :
<service
android:name=".MyFirebaseInstanceIDService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
</intent-filter>
</service>
and i have this code in java :
public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService {
private static final String TAG = "MyFirebaseIIDService";
#Override
public void onTokenRefresh() {
// Get updated InstanceID token.
String refreshedToken = FirebaseInstanceId.getInstance().getToken();
Log.d(TAG, "Refreshed token: " + refreshedToken);
}
// [END refresh_token]
}
now the question, how i can make the connection between MyFirebaseInstanceIDService and Delphi ? how from MyFirebaseInstanceIDService.onTokenRefresh i can fire a method declared in delphi ? Or how from delphi i can get the instance of MyFirebaseInstanceIDService
do we need to use indent for this ?

Migrating GCM to FirebaseCM: onMessageReceived() not called in foreground

I'm trying to migrate Android client app from Google Cloud Messaging to Firebase Cloud Messaging. I strictly followed an official tutorial, but didn't succeed - onMessageReceived() method is not called when app in foreground.
So here are code snippets that I touched.
build.gradle (project level)
dependencies {
//other stuff
classpath 'com.google.gms:google-services:3.0.0'
}
build.gradle (app level)
apply plugin: 'com.google.gms.google-services' //this line in the bottom
and
dependencies {
//other stuff here
compile 'com.google.firebase:firebase-messaging:9.0.0'
}
AndroidManifest.xml
<service android:name=".service.FirebaseService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
and
<service
android:name=".service.MyInstanceIDListenerService"
android:exported="false">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>
and
<service
android:name=".service.RegistrationIntentService"
android:exported="false" />
as childs of <application> tag.
MyInstanceIDListenerService.java
public class MyInstanceIDListenerService extends FirebaseInstanceIdService {
final String TAG = "Firebase instance id";
#Override
public void onTokenRefresh() {
String refreshedToken = FirebaseInstanceId.getInstance().getToken();
Log.d(TAG, "Refreshed token: " + refreshedToken);
sendRegistrationToServer(refreshedToken);
}
private void sendRegistrationToServer(String token) {
Intent intent = new Intent(RegistrationIntentServiceEvent.TOKEN);
intent.putExtra(RegistrationIntentServiceEvent.TOKEN, token);
LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
}
}
FirebaseService.java
public class FirebaseService extends FirebaseMessagingService {
//OtherStuff
#Override
public void onMessageReceived(RemoteMessage message){
String from = message.getFrom();
Map data = message.getData();
Log.d(TAG, "Message: " + from); //Never appears in logcat
//other stuff
}
}
RegistrationIntentService
public class RegistrationIntentService extends IntentService {
private static final String TAG = "RegIntentService";
public RegistrationIntentService() {
super(TAG);
}
#Override
protected void onHandleIntent(Intent intent) {
try {
synchronized (TAG) {
String token = FirebaseInstanceId.getInstance().getToken();
Log.i(TAG, "GCM Registration Token: " + token);//This works fine
//and shows this line - 12-19 17:59:33.295 3146-5386/ru.bpc.mobilebank.bpc I/RegIntentService: GCM Registration Token: *some_token*
sendRegistrationToServer(token);
}
} catch (Exception e) {
Log.d(TAG, "Failed to complete token refresh", e);
}
}
private void sendRegistrationToServer(String token) {
Intent intent = new Intent(RegistrationIntentServiceEvent.TOKEN);
intent.putExtra(RegistrationIntentServiceEvent.TOKEN, token);
LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
}
}
Please, tell if i did something wrong and why registrations seems to be done properly, but the onMessageReceived() method is never called even if the app is in foreground. Thanks in advance.
P.S. By the way, is adding SHA-1 keys in Firebase console necessary? maybe this could cause the problem? But Firebase says this action is optional.

if you are using FCM then you should replace this
<service android:name=".service.GcmService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
to
<service android:name=".service.FirebaseService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
your service not registered properly..