Android notification setSound is not working

Question

In my hybrid Cordova Android app targeting API 23+ I want to use a custom sound for notifications. To that end I have done the following

• In plugin.xml

Answer 1

For API 26+ you need to set the sound on the notification channel:

Uri soundUri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://"+ getApplicationContext().getPackageName() + "/" + R.raw.siren);
NotificationManager mNotificationManager = (NotificationManager) getApplicationContext().getSystemService(Context.NOTIFICATION_SERVICE);
    NotificationChannel mChannel;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            mChannel = new NotificationChannel(Utils.CHANNEL_SIREN_ID, Utils.CHANNEL_SIREN_NAME, NotificationManager.IMPORTANCE_HIGH);
            mChannel.setLightColor(Color.GRAY);
            mChannel.enableLights(true);
            mChannel.setDescription(Utils.CHANNEL_SIREN_DESCRIPTION);
            AudioAttributes audioAttributes = new AudioAttributes.Builder()
                    .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                    .setUsage(AudioAttributes.USAGE_NOTIFICATION)
                    .build();
            mChannel.setSound(soundUri, audioAttributes);

            if (mNotificationManager != null) {
                mNotificationManager.createNotificationChannel( mChannel );
            }
    }

    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this, Utils.CHANNEL_SIREN_ID)
            .setSmallIcon(R.drawable.ic_stat_maps_local_library)
            .setLargeIcon(BitmapFactory.decodeResource(getApplicationContext().getResources(), R.mipmap.ic_launcher))
            .setTicker(title)
            .setContentTitle(contentTitle)
            .setContentText(contentText)
            .setAutoCancel(true)
            .setLights(0xff0000ff, 300, 1000) // blue color
            .setWhen(System.currentTimeMillis())
            .setPriority(NotificationCompat.PRIORITY_DEFAULT);

    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
            mBuilder.setSound(soundUri);
    }

    int NOTIFICATION_ID = 1; // Causes to update the same notification over and over again.
    if (mNotificationManager != null) {
        mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
    }