samples/ApiDemos/res/layout/presentation_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2012 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.
-->

<!-- Demonstrates an activity that shows content on secondary displays using
     the android.app.Presentation class.
     See corresponding Java code PresentationActivity.java. -->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

    <!-- Message to show to use. -->
    <TextView android:id="@+id/text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0"
        android:gravity="center_vertical|center_horizontal"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="@string/presentation_activity_text"/>

    <!-- A checkbox to toggle between showing all displays or only presentation displays. -->
    <CheckBox android:id="@+id/show_all_displays"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0"
        android:text="@string/presentation_show_all_displays" />

    <!-- List that will show information about all connected displays. -->
    <ListView android:id="@+id/display_list"
        android:layout_width="match_parent"
        android:layout_height="0dip"
        android:layout_weight="1" />
</LinearLayout>