[Android] Use states for MediaBrowser animator + add comments

[Nicolas Pomepuy]

vlc-android | branch: master | Nicolas Pomepuy <nicolas.pomepuy at gmail.com> | Thu May  9 08:12:39 2019 +0200| [f0b3bc72c593a73c5ce69ca0a650971994ec3230] | committer: Geoffrey Métais

Use states for MediaBrowser animator + add comments

> https://code.videolan.org/videolan/vlc-android/commit/f0b3bc72c593a73c5ce69ca0a650971994ec3230
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 .../vlc/gui/tv/MediaBrowserAnimatorDelegate.kt     | 229 +++++++++++++--------
 1 file changed, 140 insertions(+), 89 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/f0b3bc72c593a73c5ce69ca0a650971994ec3230