session-android/res/drawable/contact_photo_background.xml

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

    <item android:drawable="@android:color/transparent" />
</selector>