before.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:overScrollMode="never">

   <RelativeLayout
       android:id="@+id/rlProgress"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content">

       <RelativeLayout
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:layout_marginBottom="2dp"
           android:layout_marginEnd="20dp"
           android:layout_marginStart="20dp"
           android:layout_marginTop="2dp"
           android:overScrollMode="never">

           <ImageView
               android:id="@+id/ptBackgroundImageBefore"
               android:layout_width="match_parent"
               android:layout_height="match_parent"
               android:overScrollMode="never" />

           <ImageView
               android:id="@+id/ptBackgroundImageAfter"
               android:layout_width="match_parent"
               android:layout_height="match_parent"
               android:overScrollMode="never" />
       </RelativeLayout>

       <ImageView
           android:id="@+id/ivPlaceHolder"
           android:layout_width="match_parent"
           android:layout_height="match_parent"
           android:scaleType="centerCrop" />

       <View
           android:id="@+id/vMask"
           android:layout_width="match_parent"
           android:layout_height="match_parent"
           android:layout_marginEnd="18dp"
           android:layout_marginStart="18dp"
           android:overScrollMode="never"
           android:visibility="gone" />
   </RelativeLayout>

   <SeekBar
       android:id="@+id/ptSeekBar"
       android:layout_width="match_parent"
       android:layout_height="match_parent"
       android:layout_centerVertical="true"
       android:max="10000"
       android:overScrollMode="never"
       android:progressDrawable="@drawable/drawable_seek_bar"
       android:visibility="gone" />
</RelativeLayout>