نمایش نوتیفیکیشن در اندروید با فایربیس

 dependencies {
        classpath 'com.android.tools.build:gradle:3.4.2'
        classpath 'com.google.gms:google-services:4.2.0' 
    }

dependencies {
 ...

    implementation 'com.google.firebase:firebase-core:17.0.1'
    implementation 'com.google.firebase:firebase-messaging:19.0.1'
}
apply plugin: 'com.google.gms.google-services'

package com.tejariapp.firebasenotificationapp.server;

import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.graphics.BitmapFactory;
import android.os.Build;
import android.util.Log;

import androidx.core.app.NotificationCompat;

import com.google.firebase.messaging.FirebaseMessagingService;
import com.google.firebase.messaging.RemoteMessage;
import com.tejariapp.firebasenotificationapp.MainActivity;
import com.tejariapp.firebasenotificationapp.R;

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    private static final String TAG = "MyFirebaseMsgService";

    @Override
    public void onNewToken(String s) {
        super.onNewToken(s);
        MySharedPref sharedPref = new MySharedPref(this);
        sharedPref.saveToken(s);
    }

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {
        Log.e(TAG, "From: " + remoteMessage.getFrom() + " Message : " + remoteMessage + " Data : " + remoteMessage.getData());
        if (remoteMessage.getData() != null) {
            String status = remoteMessage.getData().get("status") != null ? remoteMessage.getData().get("status") : "";

            if (status.equals("new_pm"))
                sendNotification();
        }
    }

    private void sendNotification() {
        PendingIntent pendingIntent;
        Intent intent = new Intent(this, MainActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
        pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);

        NotificationManager mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);

        NotificationCompat.Builder nb = new NotificationCompat.Builder(this, getString(R.string.app_name));

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationChannel mChannel = new NotificationChannel(getString(R.string.app_name),
                    getString(R.string.app_name),
                    NotificationManager.IMPORTANCE_HIGH);

            mChannel.setDescription("this is message");
            mChannel.enableLights(true);
            mChannel.enableVibration(true);

            mNotificationManager.createNotificationChannel(mChannel);

            nb.setChannelId(getString(R.string.app_name) + getString(R.string.app_name));
        }

        nb.setSmallIcon(R.mipmap.ic_launcher_round);
        nb.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher_round));
        nb.setContentTitle("پیام جدید");
        nb.setContentText("شما یک پیام جدید دارید"); 
        nb.setAutoCancel(true);
        nb.setVibrate(new long[]{1000, 1000, 1000, 1000, 1000, 1000, 1000}); 
        nb.setPriority(Notification.PRIORITY_MAX);
        nb.setContentIntent(pendingIntent);
        nb.setChannelId(getString(R.string.app_name) );

        mNotificationManager.notify(0, nb.build());
    }

}

package com.tejariapp.firebasenotificationapp.server

import android.app.Notification
import android.app.NotificationChannel
import android.app.NotificationManager
import android.app.PendingIntent
import android.content.Context
import android.content.Intent
import android.graphics.BitmapFactory
import android.os.Build
import android.util.Log

import androidx.core.app.NotificationCompat

import com.google.firebase.messaging.FirebaseMessagingService
import com.google.firebase.messaging.RemoteMessage
import com.tejariapp.firebasenotificationapp.MainActivity
import com.tejariapp.firebasenotificationapp.R

class MyFirebaseMessagingService : FirebaseMessagingService() {

    override fun onNewToken(s: String?) {
        super.onNewToken(s)
        val sharedPref = MySharedPref(this)
        sharedPref.saveToken(s)
    }

    override fun onMessageReceived(remoteMessage: RemoteMessage?) {
        Log.e(TAG, "From: " + remoteMessage!!.from + " Message : " + remoteMessage + " Data : " + remoteMessage.data)
        if (remoteMessage.data != null) {
            val status = if (remoteMessage.data["status"] != null) remoteMessage.data["status"] else ""

            if (status == "new_pm")
                sendNotification()
        }
    }

    private fun sendNotification() {
        val pendingIntent: PendingIntent
        val intent = Intent(this, MainActivity::class.java)
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK or Intent.FLAG_ACTIVITY_NEW_TASK)
        pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT)

        val mNotificationManager = this.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager

        val nb = NotificationCompat.Builder(this, getString(R.string.app_name))

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            val mChannel = NotificationChannel(getString(R.string.app_name),
                    getString(R.string.app_name),
                    NotificationManager.IMPORTANCE_HIGH)

            mChannel.description = "this is message"
            mChannel.enableLights(true)
            mChannel.enableVibration(true)

            mNotificationManager.createNotificationChannel(mChannel)

            nb.setChannelId(getString(R.string.app_name) + getString(R.string.app_name))
        }

        nb.setSmallIcon(R.mipmap.ic_launcher_round)
        nb.setLargeIcon(BitmapFactory.decodeResource(resources, R.mipmap.ic_launcher_round))
        nb.setContentTitle("پیام جدید")
        nb.setContentText("شما یک پیام جدید دارید")
        nb.setAutoCancel(true)
        nb.setVibrate(longArrayOf(1000, 1000, 1000, 1000, 1000, 1000, 1000))
        nb.priority = Notification.PRIORITY_MAX
        nb.setContentIntent(pendingIntent)
        nb.setChannelId(getString(R.string.app_name))

        mNotificationManager.notify(0, nb.build())
    }

    companion object {
        private val TAG = "MyFirebaseMsgService"
    }
}

 @Override
    public void onNewToken(String s) {
        super.onNewToken(s);
        MySharedPref sharedPref = new MySharedPref(this);
        sharedPref.saveToken(s);
    }

 remoteMessage.getFrom() 

remoteMessage.getData()

 String status = remoteMessage.getData().get("status") != null ? remoteMessage.getData().get("status") : "";

            if (status.equals("new_pm"))
                sendNotification();

{
"status":"new_pm"
} 

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationChannel mChannel = new NotificationChannel(getString(R.string.app_name),
                    getString(R.string.app_name),
                    NotificationManager.IMPORTANCE_HIGH);

            mChannel.setDescription("this is message");
            mChannel.enableLights(true);
            mChannel.enableVibration(true);

            mNotificationManager.createNotificationChannel(mChannel);

            nb.setChannelId(getString(R.string.app_name) + getString(R.string.app_name));
        }

 <service
            android:name=".MyFirebaseMessagingService"
            android:stopWithTask="false">
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT"/>
            </intent-filter>
        </service>

package com.tejariapp.firebasenotificationapp.server;

import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;

import static android.content.Context.MODE_PRIVATE;

public class MySharedPref {
    private Context context;
    private SharedPreferences.Editor editor;
    private SharedPreferences prefs;

    public MySharedPref(Context context) {
        this.context = context;

        prefs = context.getSharedPreferences("PUSH_DB", MODE_PRIVATE);
        editor = context.getSharedPreferences("PUSH_DB", MODE_PRIVATE).edit();
    }

    public void saveToken(String token) {
        editor.putString("TOKEN", token);
        editor.apply();
    }

    public String getToken() {
        return prefs.getString("TOKEN", "-");
    }

}

package com.tejariapp.firebasenotificationapp.server
 

import android.content.Context 
import android.content.SharedPreferences

import android.content.Context.MODE_PRIVATE

class MySharedPref(private val context: Context) {
    private val editor: SharedPreferences.Editor
    private val prefs: SharedPreferences

    val token: String?
        get() = prefs.getString("TOKEN", "-")

    init {

        prefs = context.getSharedPreferences("PUSH_DB", MODE_PRIVATE)
        editor = context.getSharedPreferences("PUSH_DB", MODE_PRIVATE).edit()
    }

    fun saveToken(token: String) {
        editor.putString("TOKEN", token)
        editor.apply()
    }
}

 <uses-permission android:name="android.permission.INTERNET"/>

package com.tejariapp.firebasenotificationapp;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}

package com.tejariapp.firebasenotificationapp
 

import androidx.appcompat.app.AppCompatActivity

import android.os.Bundle

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
    }
}

<?php
class SendNotification {
    private static $API_SERVER_KEY = 'AAAACzTpr1A:APA91bEujUifrFrdLaYtXYckfEXj3r-56RGorat_T2duFcR7TULvurBT4_0nieI8kxToSk3N2bHlpRi_hWScV90Gdj9FXwx-lerRmevL5..........';

    private static $is_background = "TRUE";
    public function __construct() {

    }
    public function sendPushNotificationToFCMSever($token) {
        $path_to_firebase_cm = 'https://fcm.googleapis.com/fcm/send';

        $fields = array(
            'to' => $token,
            'priority' => 10,
            'data'=>array(
                "status"=>"new_pm"
            )
        );
        $headers = array(
            'Authorization:key=' . self::$API_SERVER_KEY,
            'Content-Type:application/json'
        );

        // Open connection
        $ch = curl_init();
        // Set the url, number of POST vars, POST data
        curl_setopt($ch, CURLOPT_URL, $path_to_firebase_cm);
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 );
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
        // Execute post
        $result = curl_exec($ch);
        // Close connection
        curl_close($ch);
        return $result;
    }
}
?>

   $fields = array(
            'to' => $token,
            'priority' => 10,
            'data'=>array(
                "status"=>"new_pm"
            )
        );

<?php
include("connection.php");
include "SendNotification.php";

$id = $_POST['id'];

$con = connection::getConnection();

//send push code
        $user_token = "";
        $sql2 = "SELECT user_token FROM `tbl_user` WHERE `user_id`= $id";
        $result2 = $con->query($sql2);
        if ($result2->num_rows > 0){
            while ($row = $result2->fetch_assoc()){
                $user_token = $row['user_token'];
            }
        }

        $serverObject = new SendNotification();
        $jsonString = $serverObject->sendPushNotificationToFCMSever( $user_token );
?>

<?php
include("connection.php");
include "SendNotification.php"; 

$con = connection::getConnection(); 
        $serverObject = new SendNotification();
        $jsonString = $serverObject->sendPushNotificationToFCMSever( 'user token' );
?>