<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffffff">

    <ImageView
        android:id="@+id/iv_thumbnail"
        android:layout_width="match_parent"
        android:layout_height="150dp"
        android:adjustViewBounds="true"
        android:scaleType="centerCrop" />

    <ImageView
        android:id="@+id/iv_thumbnail_selected"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:src="@drawable/check_mark" />
</RelativeLayout>