ui/holo/BorderlessButtons/BorderlessButtons/src/main/res/layout/activity_main.xml

<!--
  Copyright 2013 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.
  -->

<!--
    The top-level LinearLayout uses a horizontal divider to visually
    distinguish the top description box, list, and bottom button bar.

    android:showDividers="middle" draws dividers between each child view and
    android:divider="?android:dividerHorizontal" indicates that the standard
    horizontal system divider (set in the activity's theme) should be used to
    draw the divider.
-->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:divider="?android:dividerHorizontal"
    android:showDividers="middle">

    <TextView style="@style/Widget.DescriptionBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/intro_message" />

    <!--
        Remember to use padding on your ListViews to adhere to the standard
        metrics described in the Android Design guidelines. When doing so,
        you should set the android:scrollbarStyle such that the scrollbar
        doesn'isn't inset.
    -->
    <ListView android:id="@android:id/list"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:paddingLeft="@dimen/page_margin"
        android:paddingRight="@dimen/page_margin"
        android:scrollbarStyle="outsideOverlay" />

    <!--
        When using the Holo theme (setting your activity or app theme to
        Theme.Holo or one of its descendants), a LinearLayout with the
        ?android:buttonBarStyle will draw dividers (with padding) between
        buttons.
    -->
    <LinearLayout style="?android:buttonBarStyle"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <!--
            Make sure to apply the ?android:buttonBarStyle to each button
            in the button bar.

            In the Holo theme, this style is very similar to
            ?android:borderlessButtonStyle, but designed for use specifically
            in horizontal button bars.
        -->
        <Button style="?android:buttonBarButtonStyle"
            android:id="@+id/cancel_button"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/cancel" />

        <Button style="?android:buttonBarButtonStyle"
            android:id="@+id/ok_button"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/ok" />

    </LinearLayout>

</LinearLayout>