Media controls notification emits alert on Android O

Question

Ever since adding support for Android O, Android devices running O receive an alert (tone or vibration) whenever my app's media controls notification gets updated (metadata or playback state changes). I'm looking for a way to disable this alert since it's not applicable to media style notifications.

Here is the code I use to create a media controls notification:

MediaDescriptionCompat description = metadata.getDescription();
String artistName = metadata.getString(MediaMetadataCompat.METADATA_KEY_ARTIST);
String albumName = metadata.getString(MediaMetadataCompat.METADATA_KEY_ALBUM);
Bitmap largeIcon = BitmapFactory.decodeResource(playbackService.getResources(),
        R.drawable.vector_global_defaultsong);

NotificationCompat.Builder notificationBuilder = new NotificationCompat
        .Builder(playbackService, NotificationHelper.CHANNEL_MEDIA_CONTROLS)
        .setColor(ContextCompat.getColor(playbackService, R.color.colorAccent))
        .setSmallIcon(R.drawable.logo_light_filled)
        .setContentTitle(description.getTitle())
        .setContentText(playbackService.getString(R.string.song_list_subtitle_format,
                artistName, albumName))
        .setContentIntent(createContentIntent())
        .setDeleteIntent(MediaButtonReceiver.buildMediaButtonPendingIntent(playbackService,
                PlaybackStateCompat.ACTION_STOP))
        .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
        .setOngoing(playbackState.getState() == PlaybackStateCompat.STATE_PLAYING)
        .setLargeIcon(largeIcon);

notificationBuilder.setStyle(new android.support.v4.media.app.NotificationCompat.MediaStyle()
        // show previous, play/pause, and next in compact view
        .setShowActionsInCompactView(addActions(notificationBuilder))
        .setMediaSession(sessionToken));
showNotification(notificationBuilder.build());

. . .

private void showNotification(final Notification notification) {
    if (!started) {
        mediaController.registerCallback(mediaControllerCallback);
        playbackService.startForeground(NOTIFICATION_ID, notification);
        started = true;
    } else {
        notificationManager.notify(NOTIFICATION_ID, notification);
    }

    if (playbackState.getState() == PlaybackStateCompat.STATE_PAUSED) {
        playbackService.stopForeground(false);
    }
}

Here is the code I use to create the notification channel:

public static final String CHANNEL_MEDIA_CONTROLS = "media_controls";

public static void createNotificationChannels(Context context) {
    if (android.os.Build.VERSION.SDK_INT >= 26) {
        NotificationChannel mediaControlsChannel = new NotificationChannel(CHANNEL_MEDIA_CONTROLS,
                context.getString(R.string.notification_channel_media_controls),
                NotificationManager.IMPORTANCE_HIGH);
        mediaControlsChannel.setShowBadge(false);
        getNotificationManager(context).createNotificationChannel(mediaControlsChannel);
    }
}

Update: Setting the showBadge to false on the notification channel doesn't appear to do anything. I still receive a badge on the app icon when the media controls notification is shown. So it looks like the notification channel attributes that I set are not being applied.

score 19 · Accepted Answer · edited Apr 23 '18 at 04:41

19

Per the Migrating MediaStyle notifications to Android O, you should be using IMPORTANCE_LOW, which does not contain any sound - IMPORTANCE_HIGH channels have sound associated with them.

Android already reorders MediaStyle notifications higher in the tray, so using a higher importance is not necessary as it was on previous versions of Android.

NOTE: After changing the importance, you need to clear app data or reinstall the app in order to have this change take effect in notification channel.

edited Apr 23 '18 at 04:41

rpattabi

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answered Sep 07 '17 at 00:54

ianhanniballake

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1

Hey @ianhanniballake. Thanks for the response. I tested different importance levels last night, including `IMPORTANCE_LOW`, to no avail. I still receive an alert tone on my Pixel running Oreo. – Ryan Sep 07 '17 at 13:26
5

Keep in mind that Notification channels are not editable after creation (except by the user). Try clearing data in your app to completely delete the channel. – ianhanniballake Sep 07 '17 at 14:10
Ah, makes sense. Clearing app data did the trick. Many thanks! – Ryan Sep 07 '17 at 15:04
If this helped answer your question, make sure to accept the answer to remove the question from the queue of unanswered questions. – ianhanniballake Sep 07 '17 at 15:05
Thanks @ianhaniballake, this solved my problem with my media style notification playing sounds all the time when the player state changes. – Andrew Lam Sep 17 '17 at 21:58
@ianhanniballake, please, pretty please, put your comment regarding clearing app data to you answer. It is really important: I've just lost two hours because I forgot to clear it. – David Jan 24 '18 at 21:13

Media controls notification emits alert on Android O

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