app/src/main/res/layout/item_picture.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/pictureImageView"
android:layout_width="match_parent"
android:layout_height="180dp"
android:scaleType="centerInside"
/>
</RelativeLayout>