Fix #228

Signed-off-by: Mario Danic <mario@lovelyhq.com>

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

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merge xmlns:android="http://schemas.android.com/apk/res/android"
+       xmlns:tools="http://schemas.android.com/tools"
+       android:layout_width="wrap_content"
+       android:layout_height="match_parent">
+
+    <View
+        android:id="@+id/fast_scroller_bar"
+        android:layout_width="7dp"
+        android:layout_height="wrap_content"
+        android:layout_gravity="end"
+        android:background="@color/transparent"/>
+
+    <RelativeLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content">
+
+        <TextView
+            android:id="@+id/fast_scroller_bubble"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="end"
+            android:layout_marginEnd="0dp"
+            android:paddingLeft="16dp"
+            android:paddingRight="16dp"
+            android:layout_toStartOf="@+id/fast_scroller_handle"
+            android:background="@drawable/fast_scroller_bubble"
+            android:gravity="center"
+            android:textColor="?android:attr/textColorPrimaryInverse"
+            android:textSize="38sp"
+            android:visibility="gone"
+            tools:visibility="visible"
+            tools:text="A" />
+
+        <ImageView
+            android:id="@+id/fast_scroller_handle"
+            android:alpha="0.5"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignParentEnd="true"
+            android:paddingStart="6dp"
+            android:contentDescription="@null"
+            android:src="@drawable/fast_scroller_handle"/>
+
+    </RelativeLayout>
+
+</merge>