[Android] Expand playlists/folders in background

[Geoffrey Métais]

vlc-android | branch: master | Geoffrey Métais <geoffrey.metais at gmail.com> | Thu Jan 25 15:32:10 2018 +0100| [f30d5d50c4bb95449298ed04dfb1c19e32219e1c] | committer: Geoffrey Métais

Expand playlists/folders in background

> https://code.videolan.org/videolan/vlc-android/commit/f30d5d50c4bb95449298ed04dfb1c19e32219e1c
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 .../src/org/videolan/vlc/PlaybackService.java      | 12 ++--
 .../src/org/videolan/vlc/media/PlayerController.kt | 21 ++++--
 .../src/org/videolan/vlc/media/PlaylistManager.kt  | 82 ++++++++++++----------
 3 files changed, 63 insertions(+), 52 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/f30d5d50c4bb95449298ed04dfb1c19e32219e1c