# Local audio_service 0.18.19 patch

Source: the published `audio_service` 0.18.19 package (MIT; see LICENSE).
Only runtime sources are vendored. This replaces the same dependency, without
adding another playback engine or native SDK.

- Android: include custom media actions in MediaStyle notifications on Android
  12 and older. Upstream exposes them only through PlaybackState, which hides
  them on those versions. Keep custom action order and compact indices aligned.
- Android: allow a custom action to supply an explicit in-app activity class
  using the `spotiflac.activity` extra. Its notification PendingIntent opens the
  output picker directly. These activity controls are excluded from
  PlaybackState custom actions: background launches from media-session binder
  callbacks are blocked on newer Android. Use its native output switcher.
  This is only for app-owned controls, not extension input.

Android 13+ still chooses the positions and built-in transport icons in System
UI. We preserve real play/pause/previous/next semantics for headsets, lock screen
and Android Auto instead of disguising them as unrelated custom actions.

When upgrading, compare these changes against the matching upstream files.