conversations-classic/src/main/res/layout/activity_contact_details.xml

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="?attr/color_background_secondary"
        android:orientation="vertical">

        <include android:id="@+id/toolbar"
            layout="@layout/toolbar" />

        <ScrollView
            android:layout_width="fill_parent"
            android:layout_height="fill_parent">

            <LinearLayout
                android:id="@+id/details_main_layout"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:orientation="vertical">

                <android.support.v7.widget.CardView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginBottom="@dimen/activity_vertical_margin"
                    android:layout_marginLeft="@dimen/activity_horizontal_margin"
                    android:layout_marginRight="@dimen/activity_horizontal_margin"
                    android:layout_marginTop="@dimen/activity_vertical_margin">

                    <RelativeLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:padding="@dimen/card_padding_regular">

                        <QuickContactBadge
                            android:id="@+id/details_contact_badge"
                            android:layout_width="72dp"
                            android:layout_height="72dp"
                            android:layout_alignParentTop="true"
                            android:scaleType="centerCrop"/>

                        <LinearLayout
                            android:id="@+id/details_jidbox"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_marginLeft="16dp"
                            android:layout_toRightOf="@+id/details_contact_badge"
                            android:orientation="vertical">

                            <TextView
                                android:id="@+id/details_contactjid"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:text="@string/account_settings_example_jabber_id"
                                android:textAppearance="@style/TextAppearance.Conversations.Title"/>

                            <com.wefika.flowlayout.FlowLayout
                                android:id="@+id/tags"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:layout_marginBottom="4dp"
                                android:layout_marginLeft="-2dp"
                                android:layout_marginTop="4dp"
                                android:orientation="horizontal">
                            </com.wefika.flowlayout.FlowLayout>

                            <TextView
                                android:id="@+id/details_lastseen"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:layout_marginTop="4dp"
                                android:textAppearance="@style/TextAppearance.Conversations.Subhead"/>

                            <TextView
                                android:id="@+id/status_message"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:layout_marginTop="8dp"
                                android:textAppearance="@style/TextAppearance.Conversations.Body1"/>

                            <Button
                                android:id="@+id/add_contact_button"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:layout_marginTop="8dp"
                                android:text="@string/add_contact"/>

                            <CheckBox
                                android:id="@+id/details_send_presence"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:layout_marginTop="8dp"
                                android:text="@string/send_presence_updates"
                                android:textAppearance="@style/TextAppearance.Conversations.Body1"/>

                            <CheckBox
                                android:id="@+id/details_receive_presence"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:text="@string/receive_presence_updates"
                                android:textAppearance="@style/TextAppearance.Conversations.Body1"/>
                        </LinearLayout>

                        <TextView
                            android:id="@+id/details_account"
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:layout_alignParentRight="true"
                            android:layout_below="@+id/details_jidbox"
                            android:layout_marginTop="32dp"
                            android:text="@string/using_account"
                            android:textAppearance="@style/TextAppearance.Conversations.Caption"/>
                    </RelativeLayout>
                </android.support.v7.widget.CardView>

                <android.support.v7.widget.CardView
                    android:id="@+id/keys_wrapper"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginBottom="@dimen/activity_vertical_margin"
                    android:layout_marginLeft="@dimen/activity_horizontal_margin"
                    android:layout_marginRight="@dimen/activity_horizontal_margin"
                    android:layout_marginTop="@dimen/activity_vertical_margin">

                    <LinearLayout
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:orientation="vertical">

                        <LinearLayout
                            android:id="@+id/details_contact_keys"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            android:orientation="vertical"
                            android:padding="@dimen/card_padding_list">
                        </LinearLayout>

                        <LinearLayout
                            android:layout_width="wrap_content"
                            android:layout_height="match_parent"
                            android:layout_marginTop="8dp"
                            android:orientation="horizontal">


                            <Button
                                android:id="@+id/scan_button"
                                style="?android:attr/borderlessButtonStyle"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:paddingLeft="16dp"
                                android:paddingRight="16dp"
                                android:minWidth="0dp"
                                android:text="@string/scan_qr_code"
                                android:textColor="?attr/colorAccent"/>

                            <Button
                                android:id="@+id/show_inactive_devices"
                                style="?android:attr/borderlessButtonStyle"
                                android:layout_width="wrap_content"
                                android:layout_height="wrap_content"
                                android:paddingLeft="16dp"
                                android:paddingRight="16dp"
                                android:minWidth="0dp"
                                android:text="@string/show_inactive_devices"
                                android:textColor="?attr/colorAccent"/>
                        </LinearLayout>
                    </LinearLayout>
                </android.support.v7.widget.CardView>
            </LinearLayout>
        </ScrollView>
    </LinearLayout>
</layout>