MDESupportsUniversalURLPlayback
A Boolean value that indicates whether an app supports URL-based playback via a media device extension.
Discussion
Set this key to true in your media app’s Info.plist file to turn on the AVSystemRoute.LaunchMode.player launch mode, which uses the remote device’s built-in media player to play a URL:
<key>MDESupportsUniversalURLPlayback</key>
<true/>When you set this key to true, your app can start a playback session using AVSystemRouteSession with a media URL and the AVSystemRoute.LaunchMode.player launch mode. The system routes the URL to the device’s built-in player without requiring a corresponding application on the remote device.
If you don’t set this key to true, calls to start() with the AVSystemRoute.LaunchMode.player launch mode fail.