The MediaPlayer framework doesn't work on macOS Sierra

Number:rdar://33296923 Date Originated:13-Jul-2017 12:06 PM
Status:Open Resolved:
Product:Documentation Product Version:
Classification:UI/Usability Reproducible:
I am attempting to add support the MediaPlayer framework in one of my apps; however, it doesn't not seem to work on macOS Sierra 10.12.1+ as the documentation states. It only works on macOS High Sierra. You can download a copy of the project, at the commit that has this bug, here:

Steps to Reproduce:
1. Run the app on macOS Sierra 10.12.1+.
2. Run the app on macOS High Sierra.

Expected Results:
MediaPlayer's functionality (i.e.) play/pause with AirPods or a Now Playing icon in the Touch Bar works in both cases.

Observed Results:
This only works in macOS High Sierra.




MacBook Pro (Retina, 13-inch, Early 2015) running macOS High Sierra 10.13 Beta (17A306f)


Please note: Reports posted here will not necessarily be seen by Apple. All problems should be submitted at before they are posted here. Please only post information for Radars that you have filed yourself, and please do not include Apple confidential information in your posts. Thank you!