nextcloud-android/res/xml/contacts.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/**
 * Copyright (c) 2010, The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
-->

<ContactsSource xmlns:android="http://schemas.android.com/apk/res/android">

    <ContactsDataKind
        android:mimeType="vnd.android.cursor.item/vnd.owncloud.contact.profile"
        android:icon="@drawable/icon"
        android:summaryColumn="data2"
        android:detailColumn="data3"
        android:detailSocialSummary="true" 
        android:syncable="true"/>

</ContactsSource>