core/res/res/layout/screen_progress.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/* //device/apps/common/assets/res/layout/screen_full.xml
**
** Copyright 2006, 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.
*/

This is the basic layout for a screen, with all of its features enabled.
-->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:fitsSystemWindows="true"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
>
    <!-- Popout bar for action modes -->
    <ViewStub android:id="@+id/action_mode_bar_stub"
              android:inflatedId="@+id/action_mode_bar"
              android:layout="@layout/action_mode_bar"
              android:layout_width="match_parent"
              android:layout_height="wrap_content" />

    <RelativeLayout android:id="@android:id/title_container" 
        style="?android:attr/windowTitleBackgroundStyle"
        android:layout_width="match_parent" 
        android:layout_height="?android:attr/windowTitleSize"
    >
        <ProgressBar android:id="@+android:id/progress_circular"
            style="?android:attr/progressBarStyleSmallTitle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginStart="5dip"
            android:layout_alignParentEnd="true"
            android:layout_centerVertical="true"
            android:visibility="gone"
            android:max="10000"
        />
        <ProgressBar android:id="@+android:id/progress_horizontal"
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginStart="2dip"
            android:layout_alignParentStart="true"
            android:layout_toStartOf="@android:id/progress_circular"
            android:layout_centerVertical="true"
            android:visibility="gone"
            android:max="10000" 
        />
        <TextView android:id="@android:id/title"
            style="?android:attr/windowTitleStyle"
            android:layout_width="match_parent" 
            android:layout_height="match_parent"
            android:layout_alignParentStart="true"
            android:layout_toStartOf="@android:id/progress_circular"
            android:background="@null"
            android:fadingEdge="horizontal"
            android:gravity="center_vertical"
            android:scrollHorizontally="true" 
        />
    </RelativeLayout>
    <FrameLayout android:id="@android:id/content"
        android:layout_width="match_parent"
        android:layout_height="0dip"
        android:layout_weight="1"
        android:foregroundGravity="fill_horizontal|top"
        android:foreground="?android:attr/windowContentOverlay"
    />
</LinearLayout>