[Android] Mitigate the graphical issue when fastscolling with a placeholder.

[Nicolas Pomepuy]

vlc-android | branch: master | Nicolas Pomepuy <nicolas.pomepuy at gmail.com> | Fri Feb 22 08:04:37 2019 +0100| [f4e47673f271adebf60d2cbfea16d0de9c6f69af] | committer: Geoffrey Métais

Mitigate the graphical issue when fastscolling with a placeholder.

> https://code.videolan.org/videolan/vlc-android/commit/f4e47673f271adebf60d2cbfea16d0de9c6f69af
---

 vlc-android/res/drawable/rounded_corners_grey.xml  | 21 +++++-----
 vlc-android/res/layout/audio_browser_item.xml      | 15 ++++---
 .../vlc/gui/audio/AudioBrowserAdapter.java         | 24 ++++-------
 .../org/videolan/vlc/gui/helpers/ImageLoader.kt    | 48 ++++++++++++++++++++++
 4 files changed, 78 insertions(+), 30 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/f4e47673f271adebf60d2cbfea16d0de9c6f69af