Hello friends we have covered a some tutorials with GCM but now google has an alternative which is easier than gcm. In this post we will use FCM (Firebase Cloud Messaging). So today in this Firebase Cloud Messaging Tutorial I will teach you how to send push notification to single android devices using Firebase Cloud Messaging. So lets begin.
Follow Updated Tutorial from this Link
Firebase Cloud Messaging Tutorial for Android using PHP and MySQL
Firebase Cloud Messaging Tutorial for Android using PHP and MySQL
Also Check:
Firebase Cloud Messaging Video Tutorial
- Here is an updated video tutorial covering everything about Firebase Cloud Messaging. You can go through the below playlist to learn everything about implementing Firebase Cloud Messaging to your Android Project.
- If you don’t like watching video then you can follow further in this tutorial.
Firebase Cloud Messaging Tutorial
Creating an Android Studio Project
- As we do always 😛 create a new android studio project. Once the project is loaded copy the package name you can get it from the AndroidManifest.xml file.
Getting a Configuration File
- Go to firebase console and create a new project.
- Now put your app name and select your country.
- Now click on Add Firebase to Your Android App.
- Now you have to enter your projects package name and click on ADD APP.
- After clicking add app you will get google-services.json file.
Adding Firebase Messaging to Your Project
- Now come back to your android project. Go to app folder and paste google-services.json file.
- Now go to your root level build.gradle file and add the following code.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | // Top-level build file where you can add configuration options common to all sub-projects/modules. buildscript { repositories { jcenter() } dependencies { classpath 'com.android.tools.build:gradle:2.1.0' //Add this line classpath 'com.google.gms:google-services:3.0.0' } } allprojects { repositories { jcenter() } } task clean(type: Delete) { delete rootProject.buildDir } |
- Inside app level build.gradle file make the following changes.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | apply plugin: 'com.android.application' android { compileSdkVersion 23 buildToolsVersion "23.0.3" defaultConfig { applicationId "net.simplifiedcoding.firebasecloudmessaging" minSdkVersion 15 targetSdkVersion 23 versionCode 1 versionName "1.0" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) testCompile 'junit:junit:4.12' compile 'com.android.support:appcompat-v7:23.4.0' //Add this line compile 'com.google.firebase:firebase-messaging:9.0.0' } //Add this line apply plugin: 'com.google.gms.google-services' |
- Now sync your project.
Implementing Firebase Cloud Messaging
- Create a class named MyFirebaseInstanceIDService.java and write the following code.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | package net.simplifiedcoding.firebasecloudmessaging; import android.util.Log; import com.google.firebase.iid.FirebaseInstanceId; import com.google.firebase.iid.FirebaseInstanceIdService; /** * Created by Belal on 5/27/2016. */ //Class extending FirebaseInstanceIdService public class MyFirebaseInstanceIDService extends FirebaseInstanceIdService { private static final String TAG = "MyFirebaseIIDService"; @Override public void onTokenRefresh() { //Getting registration token String refreshedToken = FirebaseInstanceId.getInstance().getToken(); //Displaying token on logcat Log.d(TAG, "Refreshed token: " + refreshedToken); } private void sendRegistrationToServer(String token) { //You can implement this method to store the token on your server //Not required for current project } } |
- Now create MyFirebaseMessagingService.java and write the following code.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | package net.simplifiedcoding.firebasecloudmessaging; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.media.RingtoneManager; import android.net.Uri; import android.support.v4.app.NotificationCompat; import android.util.Log; import com.google.firebase.messaging.FirebaseMessagingService; import com.google.firebase.messaging.RemoteMessage; /** * Created by Belal on 5/27/2016. */ public class MyFirebaseMessagingService extends FirebaseMessagingService { private static final String TAG = "MyFirebaseMsgService"; @Override public void onMessageReceived(RemoteMessage remoteMessage) { //Displaying data in log //It is optional Log.d(TAG, "From: " + remoteMessage.getFrom()); Log.d(TAG, "Notification Message Body: " + remoteMessage.getNotification().getBody()); //Calling method to generate notification sendNotification(remoteMessage.getNotification().getBody()); } //This method is only generating push notification //It is same as we did in earlier posts private void sendNotification(String messageBody) { Intent intent = new Intent(this, MainActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT); Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this) .setSmallIcon(R.mipmap.ic_launcher) .setContentTitle("Firebase Push Notification") .setContentText(messageBody) .setAutoCancel(true) .setSound(defaultSoundUri) .setContentIntent(pendingIntent); NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); notificationManager.notify(0, notificationBuilder.build()); } } |
- Now we have to define the above services in our AndroidManifest.xml file. So go to manifest and modify as follows.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="net.simplifiedcoding.firebasecloudmessaging"> <!-- Adding Internet Permission --> <uses-permission android:name="android.permission.INTERNET"/> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <!-- Defining Services --> <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> </manifest> |
- Thats all. Now run your app (Make sure your device is having google play service or else it won’t work).
- After running you will see the token in the logcat. Copy the token.
Sending Push Notification using Firebase Console
- Go to firebase console and select the app you created.
- From the left menu select notification.
- Click on new message.
- Enter message, select single device and paste the token you copied and click on send. The same as I did on the video, and check your device
Firebase Cloud Messaging Tutorial
- Bingo! It is working absolutely fine. If you are having trouble then you can get my source code from the link given below.
So thats all for this Firebase Cloud Messaging Tutorial friends. In upcoming posts I will try to show some complex applications using Firebase Cloud Messaging. Thank You 🙂
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First of All Very Very Thanks. Mr Belal Khan.
How to send notification when record is inserted in mysql db through Android App.
how to use this code
I dont know why u spent time creating this kind of tutorial where there are 100’s of them on Google. Why don’t you try to make something phone to phone and not only take a token and send from websites.
You will get it too..
Please I am in need too…
I would be very thankful if you do so…
that is exactly what i need too.
Here is it live check this chat app tutorial to know how you can send device to device messages
https://www.simplifiedcoding.net/create-chat-application-in-android-using-gcm-2/
I want same but using firebase can any one please post the code or help me.
i am creating one to one chating application so when one user sends the message another user gets the notification on his device so please help me for notification part…
can any one please paste the server side code also if it is possible.
See the Firebase RealTime Database documentation. They have implemented chat application with quick data updation on server as well as inside app also. You can use that data update method to fire a notification when any user get a new chat message from a specific person. May be you still require this solution.
Hi Belal,
Thank you for your tutorial.
I’m trying to implement FCM notification with IOS (I know the tutorial is for android) but can’t get it working from my server. I’m running php code and followed the tutorial but with no luck.
I’ve read that it needs to have exponential back-off support, do i need this for simple one way notifications?
Thank Belal Khan, But When I run application, error this line in logCat :
Cannot find Google Play services package name.
android.content.pm.PackageManager$NameNotFoundException: com.google.android.gms
Why?
Have u updated the Google play services in sdk and Phone should have play services more than 9.0
Can you do this for multiple devices instead of one device
Hello please guide for sending notifications to the user segment for particular application.
That is
1. sending notification to all the users of application
2. sending notification to selected users of application eg. users of particular city or area etc.
Hi man thanks for the tutorial, i have a question what can i do if i want to map each token that being refreshed in each client, so i would know that one client had that token?
Thanks you
Hi. Thank for your tutorial.
I meet a problem. When I send a message from Firebase console, I receive a notification in status bar, but I can’t get any MyFirebaseMessagingService’s logs. I dont know the reason of this problem. Could you tell me why?
Thank you
Hi Minh,
have you found a solution in the meantime?
Hi i have a big issue
Please someone HELP ME!!!
When i cordova run android i got this..
C:\Users\tsarre\appAssistance\platforms\android\src\io\cordova\hellocordova\MyFirebaseMessagingService.java:13: error: package com.google.firebase.messaging does not exist
import com.google.firebase.messaging.FirebaseMessagingService;
^
C:\Users\tsarre\appAssistance\platforms\android\src\io\cordova\hellocordova\MyFirebaseMessagingService.java:14: error: package com.google.firebase.messaging does not exist
import com.google.firebase.messaging.RemoteMessage;
^
C:\Users\tsarre\appAssistance\platforms\android\src\io\cordova\hellocordova\MyFirebaseMessagingService.java:20: error: cannot find symbol
public class MyFirebaseMessagingService extends FirebaseMessagingService {
^
symbol: class FirebaseMessagingService
C:\Users\tsarre\appAssistance\platforms\android\src\io\cordova\hellocordova\MyFirebaseMessagingService.java:25: error: cannot find symbol
public void onMessageReceived(RemoteMessage remoteMessage) {
^
symbol: class RemoteMessage
location: class MyFirebaseMessagingService
C:\Users\tsarre\appAssistance\platforms\android\src\io\cordova\hellocordova\MyFirebaseMessagingService.java:24: error: method does not override or implement a method from a supertype
@Override
^
C:\Users\tsarre\appAssistance\platforms\android\src\io\cordova\hellocordova\MyFirebaseMessagingService.java:38: error: no suitable constructor found for Intent(MyFirebaseMessagingService,Class)
Intent intent = new Intent(this, MainActivity.class);
^
constructor Intent.Intent(String,Uri,Context,Class) is not applicable
(actual and formal argument lists differ in length)
constructor Intent.Intent(Context,Class) is not applicable
(actual argument MyFirebaseMessagingService cannot be converted to Context by method invocation conversion)
constructor Intent.Intent(String,Uri) is not applicable
(actual argument MyFirebaseMessagingService cannot be converted to String by method invocation conversion)
constructor Intent.Intent(String) is not applicable
(actual and formal argument lists differ in length)
constructor Intent.Intent(Intent) is not applicable
(actual and formal argument lists differ in length)
constructor Intent.Intent() is not applicable
(actual and formal argument lists differ in length)
C:\Users\tsarre\appAssistance\platforms\android\src\io\cordova\hellocordova\MyFirebaseMessagingService.java:40: error: no suitable method found for getActivity(MyFirebaseMessagingService,int,Intent,int)
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent,
^
method PendingIntent.getActivity(Context,int,Intent,int,Bundle) is not applicable
(actual and formal argument lists differ in length)
method PendingIntent.getActivity(Context,int,Intent,int) is not applicable
(actual argument MyFirebaseMessagingService cannot be converted to Context by method invocation conversion)
C:\Users\tsarre\appAssistance\platforms\android\src\io\cordova\hellocordova\MyFirebaseMessagingService.java:45: error: cannot find symbol
.setSmallIcon(R.mipmap.ic_launcher)
^
symbol: variable mipmap
location: class R
C:\Users\tsarre\appAssistance\platforms\android\src\io\cordova\hellocordova\MyFirebaseMessagingService.java:44: error: constructor Builder in class Builder cannot be applied to given types;
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
^
required: Context
found: MyFirebaseMessagingService
reason: actual argument MyFirebaseMessagingService cannot be converted to Context by method invocation conversion
C:\Users\tsarre\appAssistance\platforms\android\src\io\cordova\hellocordova\MyFirebaseMessagingService.java:53: error: cannot find symbol
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
^
symbol: method getSystemService(String)
location: class MyFirebaseMessagingService
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
10 errors
:compileDebugJavaWithJavac FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ‘:compileDebugJavaWithJavac’.
> Compilation failed; see the compiler error output for details.
* Try:
Run with –stacktrace option to get the stack trace. Run with –info or –debug option to get more log output.
Check whether you add this line to your build.gradle file correctly…
compile ‘com.google.firebase:firebase-messaging:9.0.0’
i compile just like that, i’m not using android studio
dependencies {
compile fileTree(dir: ‘libs’, include: ‘*.jar’)
// SUB-PROJECT DEPENDENCIES START
compile ‘com.google.firebase:firebase-messaging:9.0.0’
// SUB-PROJECT DEPENDENCIES END
}
Hi Thierno, did you solve the problem? I am facing the same issue, any solution?
So it will be correct:
Hi, I have faced a problem in AndroidManifest.xml when it says “Cannot resolve symbol ‘MyFirebaseMessagingService’ ” and “Cannot resolve symbol ‘MyFirebaseInstanceIDService’ “.
Any idea on how to solve this problem?
I have the exact same problem 🙁
The app will still work on Nexus devices but my old Galaxy S2 crashes on startup.
You have to create a class called MyFirebaseMessagingService which extends FirebaseMessagingService. The author of this blog has already done this. See the following step in the blog :
Now create MyFirebaseMessagingService.java and write the following code.
It should be in the same package as the android manifest package. (The Class File that extends the service.)
It cannot exists outside the package, as it will be unable for it to read.
How you starting the service, You think newbie will get some result by following your tutorial. I thing they will not get any “Refreshed token” result until the service will not start.
Is there no other way to send the notification which have not manually copy and paste the token in the firebase console ?. What do something with PHP interface.
Yes offcourse you can create your own web panel to send notification
Hi Belal, i am not getting notification to my device. And also i am not getting any token in logcat window so i used user segment. please help me i am in hurry. its my humble request. Even if others know solution for this please reply me.
Why I do not receive any token?.thanks
same problem in here…. I don’t get any token, it says: FirebaseInstanceId: background sync failed: MISSING_INSTANCEID_SERVICE
Hi Belal Khan, thanks for this great tutorial, I can send push notification on my device by following your tutorial.
just one question. How can i get the notification message and display this on my Activity once the notification is clicked (press) ? Can you help me with this by providing some sample codes? Currently the situation is: when a device received a notification and press it, it only open the Application. But can’t see the full message. Hope you can help me.
Hey man, thanks for this tutorial. I can now send a push notification on my device.
Just one thing, scenario: I have my application running, and when I receive a notification, i can send the message in my android activity using LocalBroadcastReceiver. But the problem is when my app is close or in the background I can received a notification but it cannot display the message in the activity. Can you help me with this. Thanks
Same problem me.can you solve it?
Congratulations on tutorial. I’m getting this error:
V / Google Verifier Signature: Signature not valid …
Can you help me solve? Thank you!
I tried this but the status showing failed in Firebase console. Could’nt identify the reason.
Hi Belal, Thanks for this tutorial. I can now send a push notification on my device.
Now my questions are :
1. Is FCM is free for sending Push Notifications ?
2. How to send Push notification to device from my database eg. PHP Interface ?
Can u plz send code for PHP Interface.
Savior!! Thanks for the tutorial.
Can you provide example for sending push notification without using FIrebase console ?
I mean i want to send notification using my app server not by console…
it would be very helpful,,,thanks
How to store token manually and send notification to all devices??
Nice tutoria. It helps me a lot.
But I have one question, how to send notification to multiple devices using my app server?
Currently I am able to send notification to one device using my app server.
Here is the code:
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
System.out.println(“GCMNotification:::”);
Result result = null;
String share = request.getParameter(“shareRegId”);
// GCM RedgId of Android device to send push notification
String regId = “”;
if (share != null && !share.isEmpty()) {
System.out.println(“if condition…”);
regId = request.getParameter(“regId”);
System.out.println(“This is regId: ” + regId);
PrintWriter writer = new PrintWriter(“GCMRegId.txt”);
writer.println(regId);
writer.close();
request.setAttribute(“pushStatus”, “GCM RegId Received.”);
request.getRequestDispatcher(“index.jsp”)
.forward(request, response);
} else {
System.out.println(“Else condition…”);
try {
System.out.println(“Inside try…”);
BufferedReader br = new BufferedReader(new FileReader(
“GCMRegId.txt”));
regId = br.readLine();
br.close();
String userMessage = request.getParameter(“message”);
//String userMessage = “Hi… this is Ekta..”;
Sender sender = new Sender(GOOGLE_SERVER_KEY);
System.out.println(“Sender: ” + sender);
Message message = new Message.Builder().timeToLive(30)
.delayWhileIdle(true).addData(MESSAGE_KEY, userMessage).build();
System.out.println( “Size:: ” + message.getData().size() );
System.out.println(“Message: ” + message);
System.out.println(“regId: ” + regId);
//send() method is used to send notification at client side
result = sender.send(message, regId, 1);
request.setAttribute(“pushStatus”, result.toString());
System.out.println(“Result: ” + result.toString());
} catch (IOException ioe) {
System.out.println(“Exception(IOEx) : “+ ioe);
ioe.printStackTrace();
request.setAttribute(“pushStatus”,
“RegId required: ” + ioe.toString());
} catch (Exception e) {
System.out.println(“Exception (Ex) : “+e);
e.printStackTrace();
request.setAttribute(“pushStatus”, e.toString());
}
request.getRequestDispatcher(“index.jsp”)
.forward(request, response);
}
}
Hi, Great tutorial!
Can you make part-2 with “Sending an upstream message from an Android app to another Android app “.
Thanks,
Hello, first that anything I want say thanks you, for this type of tutorial are very usefull for a great comunity.
I have a question, How can I send a Firebase Cloud Messaging notification without use the Firebase Console?, for example using a server application like PHP or Java EE?.
Its possible?
Hi ,
Can we create the chat application with the firebase cloud messaging .
I am not find Token in logcat, please tell me
how to receive any token?
.thanks
Reason :
onTokenRefresh() is only Called if InstanceID token is updated
So it will call only at first time when you install an app to your device.
Solution : Uninstall your app manually, remove all the extra code if you have written inside the service.
Rebuild the project and run it….i am sure it will work then
and Belal…great and simple tutorial…
Dear Belal,How can I retrieve the message sent by the server and display that message to my Android Activity.
Great write up, thank you for getting me started! One issue I hit was removing the .setSmallIcon from the notification builder. I was unable to get foreground notifications working at all, and presumed it was something to do with my context until I found this answer on stack overflow (.setSmallIcon() is required for a notification to appear): http://stackoverflow.com/a/16448278/2276198
Thanks again!
Same issue here. The icon is indeed obligatory, as well as the intent.
i’m developing an android app and i followed this link to use google push notification
my problem is that the first time that app starts, push notification work’s fine but as I restart my app, push notification stops working and I cant receive notifications.
Hi, It’s possible to use it with eclipse?
Thanks for this comprehensive manual!
Great one, thanks. I think most users would deploy their App without checking if Google Play Service is installed in the phone. You ought to have included it in the tutorial also.
Helpful tutorial. But this does not works when app is running in background. Notifications receive only when the app is on the main screen. Is their a way to do this…???
notification is coming but i when ever i opened app notification is appearing how to fix??
belalkhan notification is coming again when ever app is opening ho to fix
Hi Belal
Nice tutorial. I implement it but want to know on clicking notification how to open app
Hi. I am not getting any tokens in logcat window so i am using user segment. But eventhough i am not getting the notification. I wanna send notification to all the users who are using the app. Please someone help me.
Yeah ..I want the same .How to do this sir …?
Please help..!
hi, how to display in full as it is partly displayed. i tried .setStyle(new NotificationCompat.BigTextStyle().bigText(messageBody)) but its not working. any idea??
sir ..token is not generated after running the program .Please help what to do ??
I need your help urgently..!
this is not working on my phone no errors but token is not displayed in logcat what should i do
Thank you so much!
hello.. very nice tutorial,very helpfull tutorial..
but i want toset birthday reminder(yearly notification)
which i cant set over yet so can anyone share for how to do…
Hello Belal Khan,
Tutorial is very useful, thank you.
Actually I want to send messages from my android phone to other android phone with mobile data using fire base. Could you just post some basic tutorial for that ?
Thanks Billal ..Its very helpful
Hello, thanks for this tutorial.
I have try to follow all step from this tutorial but i have error when try to send notification in
sendPushNotification.php
The Error is
Warning: Unexpected character in input: ‘\’ (ASCII=92) state=1 in D:\xampp\htdocs\fcm\send.php on line 31
Warning: Unexpected character in input: ‘\’ (ASCII=92) state=1 in D:\xampp\htdocs\fcm\send.php on line 31
Parse error: parse error in D:\xampp\htdocs\fcm\send.php on line 31
Can you help me what should i do?
Thank you
Please Belal khan, share the same exaple using eclipse.
That will be very great to me.
Thanks in advance
Please i have a blog created in blogger. and i just finished developing an App with WebView. please how can i use this firebase on my blogger app webview. i really need help please
I want to send messages from my android phone to other android phone with mobile data using fire base. Could you just post some basic tutorial for that ?
I am getting error in Java files, “MainActicity class in missing”. Where is this MainActivity Class ??
Keep getting error:
“unable to find valid certification path to requested target”
Made it past the error and the app runs now. However, the onTokenRefresh method never fires.
Thanks, I just read ur tutorial and i got the idea ^^ i appreciate ur effort
Thanks for the tutorial, unfortunately i get this message in logcat using your code. The app runs and then this shows. Any idea?
E/FA: Task exception on worker thread: java.lang.IllegalAccessError: tried to access method android.support.v4.content.ContextCompat.:(Ljava/lang/String;)V from class com.google.firebase.iid.zzg: com.google.android.gms.measurement.internal.zzt.zzEd(Unknown Source)
Hey, Its very nice and easy solution using this I am getting notification from fire base cloud messaging web, but not able to see Device token in log-cat, please help me out for this.
Very good example. thank u..
Which ports does FCM use? Since GCM was using 5223 (and similar before) and for newer versions, it uses 443 (which is not possible to open in Enterprise environment). Can you please comment on which ports to open in order to get it worked behind firewall (Specifically register). –
Hello,
I refer this code but getting some issue in that when i close application then i didn’t got notification on some devices and these devices are:
1. Lenovo A6020a40 which is having os 5.1.1
2. Redmi 3s prime which is having os 6.0
3. Panasonic os is 6.0
if anyone get solution for these devices plz let me know.
Thanks
Nice,, Thanks for the tutorial.
I have made FCM project in console and copied json file in app folder implemented all code and changes made in both gradle files.
Apk is installed on my android phone with google play store as per requirement for FCM.
But message sent from console is not arriving.
What else I need to do?
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xamarin android push notification only works once
i’m developing an android app and i followed this link to use google push notification
my problem is that the first time that app starts, push notification work’s fine but as I restart my app, push notification stops working and I cant receive notifications.
Thanks for this awesome tutorial
I have a question i want to add a check box in my app if user select that check box message will be receive other wise not can i achieve this using firebase folow this tutorial please help me
Amazing tutorial Belal. Thank you and keep up the spirit of sharing
I have implemented your code but unable to get notification in any device. what i am missing. There any code in MainActivity.java for registring service.
Please help. Thanks
Error is shown by adding –
broadcastReceiver = new BroadcastReceiver(); [video 3, time 2:40]
android studio says ‘Broadcast Receiver is abstract, cannot be instantiated.
Kindly help.
Thanks
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