'Android MediaSession: How to choose the icons shown on lock screen?

I have an app that plays media via MediaSessionCompat.

I create a notification for the Notification Drawer using NotificationCompat and post it using NotificationManagerCompat.notify, and it looks great. (See screenshot.)

My problem is with the lock screen. It only shows Play, Previous Track, and Next Track icons. I'm missing the controls to jump back and forward within the currently playing track. (See screenshot.)

I'm using MediaSession.setPlaybackState to specify the actions that are available, and I am including all the appropriate ones from PlaybackStateCompat for rewind, fast forward, skip to previous, and skip to next.

Is the lock screen configured differently than the notification? Or do developers simply have less control over the controls provided here?

Thank you in advance!

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androidaudiolockscreenmediasession


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