core/res/res/layout/search_bar.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/* apps/common/res/layout/SearchBar.xml
**
** Copyright 2007, 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.
*/
-->
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/search_bar"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:paddingBottom="200dip"
    android:orientation="vertical" 
    android:focusable="true"
    android:descendantFocusability="afterDescendants">
    <!-- android:paddingBottom="14dip"  TODO MUST FIX - it's a hack to get the popup to show -->

    <!-- Outer layout defines the entire search bar at the top of the screen -->
    <!-- Bottom padding of 16 is due to the graphic, with 9 extra pixels of drop
         shadow, plus the desired padding of "8" against the user-visible (grey)
         pixels, minus "1" to correct for positioning of the edittext & button. -->
    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:paddingLeft="8dip"
        android:paddingRight="8dip"
        android:paddingTop="6dip"
        android:paddingBottom="16dip"
        android:baselineAligned="false"
        android:background="@android:drawable/search_plate"
        android:addStatesFromChildren="true" >

        <!-- This is actually used for the badge icon *or* the badge label (or neither) -->
        <TextView 
            android:id="@+id/search_badge"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="2dip"
            android:drawablePadding="0dip"
            android:textAppearance="?android:attr/textAppearanceSmall"
            android:textColor="?android:attr/textColorPrimary" />

        <!-- Inner layout contains the button(s) and EditText -->
        <!-- The layout_marginTop of "1" corrects for the extra 1 pixel of padding at the top of 
             textfield_selected.9.png.  The "real" margin as displayed is "2". -->
        <!-- The layout_marginBottom of "-5" corrects for the spacing we see at the 
             bottom of the edittext and button images.  The "real" margin as displayed is "8" -->
        <LinearLayout
            android:id="@+id/search_edit_frame"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="1dip"
            android:layout_marginBottom="-5dip"
            android:orientation="horizontal"
            android:addStatesFromChildren="true"
            android:gravity="center_vertical"
            android:baselineAligned="false" >

            <view class="android.app.SearchDialog$SearchAutoComplete"
                android:id="@+id/search_src_text"
                android:layout_height="wrap_content"
                android:layout_width="0dip"
                android:layout_weight="1.0"
                android:paddingLeft="8dip"
                android:paddingRight="6dip"
                android:inputType="text|textAutoComplete" />
                <!-- android:focusableInTouchMode="false" -->
                <!-- android:singleLine="true" -->
                <!-- android:selectAllOnFocus="true" -->
                
            <!-- This button can switch between text and icon "modes" -->
            <Button 
                android:id="@+id/search_go_btn"
                android:layout_marginLeft="1dip"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:drawableLeft="@android:drawable/ic_btn_search"
            />

        </LinearLayout>
        
    </LinearLayout>

</LinearLayout>