bachinger dee83cc7db Update session position info on timeline change
This fixes an inconsistent state of the `PlayerInfo` when the index of the playing
media item is changed by a playlist modification. In this inconsistent state,
calling `Playerinfo.getCurrentMediaItem` can produce an
`ArrayIndexOutOfBoundException` (see stack trace in GH issue).

This change takes the following measurements:

- always update sessionPosition and timeline of the PlayerInfo together in
  `MediaSessionImpl.PlayerListener` where the PlayerInfo originates from
- add an assertion to avoid building a `PlayerInfo` instance in an inconsistent
  state
- reduce the window of opportunity for concurrent access to
  `mediaSessionImpl.playerInfo` when dispatching player info changes in
  `MediaSessionImpl`

Issue: androidx/media#51
PiperOrigin-RevId: 444812661
2022-05-09 10:16:33 +01:00
..
2021-10-27 09:12:46 +01:00

Session module

This module provides media session functionality through which media information and controls can be exposed to the Android platform, as well as to other processes and applications.

Getting the module

The easiest way to get the module is to add it as a gradle dependency:

implementation 'androidx.media3:media3-session:1.X.X'

where 1.X.X is the version, which must match the version of the other media modules being used.

Alternatively, you can clone this GitHub project and depend on the module locally. Instructions for doing this can be found in the top level README.