Firebase push notification with custom sound (Flutter)

Question

I\'m currently using firebase messaging cloud to push notification for my app. I\'m trying to make a custom notification sound for the push notification. I believe that it c

Answer 1

You must create notification channel first with following code

Application.kt

import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.content.Context;
import android.graphics.Color;
import android.os.Build;

import io.flutter.app.FlutterApplication
import io.flutter.plugin.common.PluginRegistry
import io.flutter.plugins.GeneratedPluginRegistrant
import io.flutter.plugin.common.PluginRegistry.PluginRegistrantCallback
import io.flutter.plugins.firebasemessaging.FlutterFirebaseMessagingService
import io.flutter.plugins.pathprovider.PathProviderPlugin;

import io.flutter.plugin.common.MethodChannel
import android.content.ContextWrapper
import android.content.Intent
import android.content.IntentFilter
import android.os.Build.VERSION
import android.os.Build.VERSION_CODES
import android.net.Uri;
import android.media.AudioAttributes;
import android.content.ContentResolver;

class Application : FlutterApplication(), PluginRegistrantCallback {
    override fun onCreate() {
        super.onCreate()
        this.createChannel()
        FlutterFirebaseMessagingService.setPluginRegistrant(this)
    }

    override fun registerWith(registry: PluginRegistry?) {
//        createChannel();
        FirebaseCloudMessagingPluginRegistrant.registerWith(registry);
    }

    private fun createChannel() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            // Create the NotificationChannel
            val name: String = getString(R.string.default_notification_channel_id)
            val channel = NotificationChannel(name, "default", NotificationManager.IMPORTANCE_HIGH)
            val soundUri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://"+ getApplicationContext().getPackageName() + "/raw/sample");
            val att = AudioAttributes.Builder()
                    .setUsage(AudioAttributes.USAGE_NOTIFICATION)
                    .setContentType(AudioAttributes.CONTENT_TYPE_SPEECH)
                    .build();
            channel.setSound(soundUri, att)

            val notificationManager: NotificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
            notificationManager.createNotificationChannel(channel)

            /*
            val id = mapData["id"]
            val name = mapData["name"]
            val descriptionText = mapData["description"]
            val sound = "sample"
            val importance = NotificationManager.IMPORTANCE_HIGH
            val mChannel = NotificationChannel(id, name, importance)
            mChannel.description = descriptionText





            // Register the channel with the system; you can't change the importance
            // or other notification behaviors after this
            val notificationManager = getSystemService(NOTIFICATION_SERVICE) as NotificationManager
            notificationManager.createNotificationChannel(mChannel)
            completed = true
             */
        }
    }
}

And android manifest.xml

    

    
    
    
    
    

    
    




        
            
            
            
                
                
            
            
                
                
            
        
        
        

        


        

        
    





finally you must put your notification sound.wav file in res/raw

that's it