SubwayTooter-Android-App/app/src/main/res/drawable/column_list_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector
    xmlns:android="http://schemas.android.com/apk/res/android"
    >
    <item android:state_pressed="true">
        <shape>
            <solid android:color="?attr/list_item_bg_pressed_dragged"/>
        </shape>
    </item>
    <item>
        <shape>
            <solid android:color="@android:color/transparent"/>
        </shape>
    </item>
</selector>