Expander indicator icon changed to new material one.

app/src/main/res/drawable/expander_indicator_dark.xml

@@ -14,6 +14,6 @@
 -->
 
 <level-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@drawable/expander_indicator_dark_hidden" android:minLevel="0" android:maxLevel="0" />
-    <item android:drawable="@drawable/expander_indicator_dark_show" android:minLevel="1" android:maxLevel="1" />
+    <item android:drawable="@drawable/ic_arrow_drop_right_white_24dp" android:minLevel="0" android:maxLevel="0" />
+    <item android:drawable="@drawable/ic_arrow_drop_down_white_24dp" android:minLevel="1" android:maxLevel="1" />
 </level-list>
\ No newline at end of file

app/src/main/res/drawable/expander_indicator_light.xml

@@ -14,6 +14,6 @@
 -->
 
 <level-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@drawable/expander_indicator_light_hidden" android:minLevel="0" android:maxLevel="0" />
-    <item android:drawable="@drawable/expander_indicator_light_show" android:minLevel="1" android:maxLevel="1" />
+    <item android:drawable="@drawable/ic_arrow_drop_right_white_24dp" android:minLevel="0" android:maxLevel="0" />
+    <item android:drawable="@drawable/ic_arrow_drop_down_white_24dp" android:minLevel="1" android:maxLevel="1" />
 </level-list>
\ No newline at end of file

app/src/main/res/layout/base_group_item.xml

@@ -16,27 +16,29 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="@dimen/expander_height"
-    android:gravity="center_vertical|left"
+    android:gravity="center_vertical|start"
     android:background="@drawable/expander_background_dark"
     >
     <ImageView
         android:id="@+id/indicator"
         android:layout_width="wrap_content"
-        android:layout_height="@dimen/expander_height"
-        android:layout_marginLeft="@dimen/expander_arrow_margin_left"
-        android:layout_marginRight="@dimen/expander_arrow_margin_right"
+        android:layout_height="wrap_content"
         android:src="@drawable/expander_indicator_dark"
-        />
+        android:layout_centerVertical="true"
+        android:layout_alignParentLeft="true"
+        android:layout_alignParentStart="true" />
     <TextView
         android:id="@+id/name"
         android:layout_width="match_parent"
         android:layout_height="@dimen/expander_height"
         android:gravity="center_vertical"
         android:layout_marginRight="@dimen/expander_text_margin_right"
+        android:layout_marginEnd="@dimen/expander_text_margin_right"
         android:singleLine="true"
         android:ellipsize="marquee"
         android:background="@drawable/ic_show_offline"
         android:text="name (0/0)"
         android:layout_toRightOf="@id/indicator"
+        android:layout_toEndOf="@id/indicator"
         />
 </RelativeLayout>
\ No newline at end of file