ring-android/app/src/main/res/layout/activity_share.xml

<?xml version="1.0" encoding="utf-8"?>

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/shareFragment"
    android:name="cx.ring.fragments.ShareWithFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />