session-android/res/layout/device_provisioning_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:paddingLeft="16dp"
                android:paddingRight="16dp">

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

        <TextView android:layout_width="fill_parent"
                  android:layout_height="wrap_content"
                  android:textAppearance="?android:attr/textAppearanceLarge"
                  android:gravity="center"
                  android:text="Add device?"
                  android:id="@+id/textView"/>

        <TextView android:layout_width="wrap_content"
                  android:layout_height="wrap_content"
                  android:textAppearance="?android:attr/textAppearanceMedium"
                  android:gravity="left"
                  android:text="The device you scanned will receive access to all incoming and outgoing messages."/>

        <LinearLayout android:layout_width="wrap_content"
                      android:layout_gravity="center"
                      android:layout_height="wrap_content"
                      android:orientation="horizontal">

            <Button android:id="@+id/cancel_button"
                    android:layout_width="0dip"
                    android:layout_weight="1"
                    android:layout_height="wrap_content"
                    android:text="Cancel"/>

            <Button android:id="@+id/continue_button"
                    android:layout_width="0dip"
                    android:layout_weight="1"
                    android:layout_height="wrap_content"
                    android:text="Continue"/>

        </LinearLayout>
    </LinearLayout>

</RelativeLayout>