[Android] Start refactoring video fragments

[Nicolas Pomepuy]

vlc-android | branch: refactor_video_grouping | Nicolas Pomepuy <nicolas.pomepuy at gmail.com> | Wed Oct  2 15:29:35 2019 +0200| [971348f12392ba54f1ddc5486f2c731d6c49e4c1] | committer: Nicolas Pomepuy

Start refactoring video fragments

> https://code.videolan.org/videolan/vlc-android/commit/971348f12392ba54f1ddc5486f2c731d6c49e4c1
---

 .../videolan/vlc/gui/folders/FoldersFragment.kt    |  14 +--
 .../src/org/videolan/vlc/gui/helpers/Navigator.kt  |   8 +-
 .../videolan/vlc/gui/video/VideoGridFragment.kt    |  94 +++++++++++++++---
 .../org/videolan/vlc/gui/video/VideoListAdapter.kt | 106 +++++++++++++--------
 vlc-android/src/org/videolan/vlc/util/Constants.kt |   1 +
 .../vlc/viewmodels/mobile/FoldersViewModel.kt      |   8 +-
 .../vlc/viewmodels/mobile/VideosViewModel.kt       |  58 +++++++++--
 7 files changed, 214 insertions(+), 75 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/971348f12392ba54f1ddc5486f2c731d6c49e4c1