feat(fcm): add missing sendNotification() method (#378)

Author: thatfiredev

messaging/app/src/main/java/com/google/firebase/example/messaging/MyFirebaseMessagingService.java

@@ -1,9 +1,17 @@
 package com.google.firebase.example.messaging;
 
+import android.app.NotificationChannel;
+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.os.Build;
 import android.util.Log;
 
 import androidx.annotation.NonNull;
+import androidx.core.app.NotificationCompat;
 import androidx.work.OneTimeWorkRequest;
 import androidx.work.WorkManager;
 import androidx.work.Worker;
@@ -84,6 +92,36 @@ private void sendRegistrationToServer(String token) {
         // TODO: Implement this method to send token to your app server.
     }
 
+    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 /* Request code */, intent,
+                PendingIntent.FLAG_IMMUTABLE);
+
+        String channelId = "fcm_default_channel";
+        Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
+        NotificationCompat.Builder notificationBuilder =
+                new NotificationCompat.Builder(this, channelId)
+                        .setContentTitle("FCM Message")
+                        .setContentText(messageBody)
+                        .setAutoCancel(true)
+                        .setSound(defaultSoundUri)
+                        .setContentIntent(pendingIntent);
+
+        NotificationManager notificationManager =
+                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
+
+        // Since android Oreo notification channel is needed.
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            NotificationChannel channel = new NotificationChannel(channelId,
+                    "Channel human readable title",
+                    NotificationManager.IMPORTANCE_DEFAULT);
+            notificationManager.createNotificationChannel(channel);
+        }
+
+        notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
+    }
+
     public static class MyWorker extends Worker {
 
         public MyWorker(@NonNull Context context, @NonNull WorkerParameters workerParams) {

messaging/app/src/main/java/com/google/firebase/example/messaging/kotlin/MyFirebaseMessagingService.kt

@@ -1,11 +1,19 @@
 package com.google.firebase.example.messaging.kotlin
 
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
 import android.content.Context
+import android.content.Intent
+import android.media.RingtoneManager
+import android.os.Build
 import android.util.Log
+import androidx.core.app.NotificationCompat
 import androidx.work.OneTimeWorkRequest
 import androidx.work.WorkManager
 import androidx.work.Worker
 import androidx.work.WorkerParameters
+import com.google.firebase.example.messaging.R
 import com.google.firebase.messaging.FirebaseMessagingService
 import com.google.firebase.messaging.RemoteMessage
 
@@ -75,6 +83,34 @@ class MyFirebaseMessagingService : FirebaseMessagingService() {
         Log.d(TAG, "sendRegistrationTokenToServer($token)")
     }
 
+    private fun sendNotification(messageBody: String) {
+        val intent = Intent(this, MainActivity::class.java)
+        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
+        val pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
+            PendingIntent.FLAG_IMMUTABLE)
+
+        val channelId = "fcm_default_channel"
+        val defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)
+        val notificationBuilder = NotificationCompat.Builder(this, channelId)
+            .setContentTitle("FCM Message")
+            .setContentText(messageBody)
+            .setAutoCancel(true)
+            .setSound(defaultSoundUri)
+            .setContentIntent(pendingIntent)
+
+        val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+
+        // Since android Oreo notification channel is needed.
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            val channel = NotificationChannel(channelId,
+                "Channel human readable title",
+                NotificationManager.IMPORTANCE_DEFAULT)
+            notificationManager.createNotificationChannel(channel)
+        }
+
+        notificationManager.notify(0 /* ID of notification */, notificationBuilder.build())
+    }
+
     companion object {
         private const val TAG = "MyFirebaseMsgService"
     }