UI : Add shadow for black theme Playlist

vlc-android/res/layout/audio_player.xml

@@ -102,11 +102,6 @@
             android:background="#00000000" />
     </LinearLayout>
 
-    <include layout="@layout/shadow_top"
-        android:layout_width="match_parent"
-        android:layout_height="6dp"
-        android:layout_below="@+id/header"/>
-
     <ViewSwitcher
         android:id="@+id/view_switcher"
         android:layout_width="match_parent"
@@ -128,6 +123,11 @@
             android:layout_height="fill_parent"/>
     </ViewSwitcher>
 
+    <include layout="@layout/shadow_top"
+        android:layout_width="match_parent"
+        android:layout_height="6dp"
+        android:layout_below="@+id/header"/>
+
     <include layout="@layout/shadow_bottom"
         android:layout_width="match_parent"
         android:layout_height="6dp"

vlc-android/res/layout/shadow_bottom.xml

@@ -2,4 +2,4 @@
 <View xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="6dp"
-    android:background="@drawable/shadow_bottom"/>
\ No newline at end of file
+    android:background="?attr/shadow_bottom_9patch"/>
\ No newline at end of file

vlc-android/res/layout/shadow_top.xml

@@ -2,4 +2,4 @@
 <View xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="6dp"
-    android:background="@drawable/shadow_top"/>
\ No newline at end of file
+    android:background="?attr/shadow_top_9patch"/>
\ No newline at end of file

vlc-android/res/values/attrs.xml

@@ -63,6 +63,8 @@
 
     <attr name="mini_player_top_shadow" format="reference" />
     <attr name="audio_playlist_shadow" format="reference" />
+    <attr name="shadow_top_9patch" format="reference"/>
+    <attr name="shadow_bottom_9patch" format="reference"/>
 
     <attr name="advanced_options_style" format="reference" />
 

vlc-android/res/values/styles.xml

@@ -68,6 +68,8 @@
         <item name="ic_move_media">@drawable/ic_move_media</item>
         <item name="ic_save">@drawable/ic_save_grey600_48dp</item>
         <item name="ic_trash_small_normal">@drawable/ic_trash_small_normal</item>
+        <item name="shadow_top_9patch">@drawable/shadow_top</item>
+        <item name="shadow_bottom_9patch">@drawable/shadow_bottom</item>
         <item name="gridview_progressbar">@drawable/gridview_progressbar_w</item>
         <item name="advanced_options_style">@style/Theme.VLC.AdvancedOptionsLight</item>
     </style>
@@ -139,6 +141,8 @@
         <item name="ic_move_media">@drawable/ic_move_media_w</item>
         <item name="ic_save">@drawable/ic_save_white_48dp</item>
         <item name="ic_trash_small_normal">@drawable/ic_trash_small_normal_w</item>
+        <item name="shadow_top_9patch">@drawable/shadow_top_dark</item>
+        <item name="shadow_bottom_9patch">@drawable/shadow_bottom_dark</item>
         <item name="gridview_progressbar">@drawable/gridview_progressbar</item>
         <item name="advanced_options_style">@style/Theme.VLC.AdvancedOptionsBlack</item>
     </style>