[Android] Allow picking files from SAF

[Nicolas Pomepuy]

vlc-android | branch: master | Nicolas Pomepuy <nicolas at videolabs.io> | Mon Apr 11 11:29:12 2022 +0200| [fdcd9325e62bdca187ef75c016b0e4121caa5e71] | committer: Duncan McNamara

Allow picking files from SAF

Fixes #2471

> https://code.videolan.org/videolan/vlc-android/commit/fdcd9325e62bdca187ef75c016b0e4121caa5e71
---

 .../resources/src/main/res/values/strings.xml      |  1 +
 .../vlc-android/res/layout/view_empty_loading.xml  | 28 ++++++++++++++++------
 .../src/org/videolan/vlc/gui/BaseActivity.kt       | 23 ++++++++++++++++++
 .../src/org/videolan/vlc/gui/audio/AudioPlayer.kt  |  2 +-
 .../videolan/vlc/gui/view/EmptyLoadingStateView.kt | 11 +++++++++
 5 files changed, 57 insertions(+), 8 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/fdcd9325e62bdca187ef75c016b0e4121caa5e71