Firebase Service

MyFirebaseMessagingService.kt

import android.app.NotificationChannel
import android.app.NotificationManager
import android.content.Context
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

class MyFirebaseMessagingService : FirebaseMessagingService() {

    override fun onMessageReceived(remoteMessage: RemoteMessage) {
        try {
            val channelName = "General"
            val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                notificationManager.createNotificationChannel(NotificationChannel(channelName,channelName,NotificationManager.IMPORTANCE_DEFAULT))
            }
            notificationManager.notify(
                1,
                NotificationCompat.Builder(this,"")
                    .setContentTitle(remoteMessage.notification?.title?:"Title")
                    .setContentText(remoteMessage.notification?.body?:"Body")
                    .build()
            )
        } catch (e: Exception) {
            Log.e(TAG, "onMessageReceived", e)
        }
    }

    override fun onNewToken(token: String) {
        try {
            Log.i(TAG, "FCM Token : $token")
        } catch (e: Exception) {
            Log.e(TAG, "onNewToken", e)
        }
    }

    companion object {
        const val TAG = "fcm"
    }
}