if (action.equals(Intent.ACTION_BATTERY_CHANGED)) 
{
  updateBattery(intent);
}

private final void updateBattery(Intent intent)
{
   mBatteryData.iconId = intent.getIntExtra("icon-small", 0);
   mBatteryData.iconLevel = intent.getIntExtra("level", 0);
   mService.updateIcon(mBatteryIcon, mBatteryData, null);
}

<com.android.server.status.StatusBarView xmlns:android="http://schemas.android.com/apk/res/android" 
android:background="@drawable/statusbar_background"
  android:orientation="vertical"
  android:focusable="true"
  android:descendantFocusability="afterDescendants"
  >
  <LinearLayout android:id="@+id/icons"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal">
    <com.android.server.status.IconMerger 
     android:id="@+id/notificationIcons"
      android:layout_width="0dip"
      android:layout_weight="1"
      android:layout_height="match_parent"
      android:layout_alignParentRight="true"
      android:paddingLeft="6dip"
      android:gravity="center_vertical"
      android:orientation="horizontal"/> 
    <LinearLayout 
     android:id="@+id/statusIcons"
      android:layout_width="wrap_content"
      android:layout_height="match_parent"
    android:layout_alignParentLeft="true"
      android:paddingRight="6dip"
      android:gravity="center_vertical"
      android:orientation="horizontal"/>  
  </LinearLayout>
  <LinearLayout android:id="@+id/ticker"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingLeft="6dip"
    android:animationCache="false"
    android:orientation="horizontal" >
    <ImageSwitcher android:id="@+id/tickerIcon"
      android:layout_width="wrap_content"
      android:layout_height="match_parent"
      android:layout_marginRight="8dip"
      >
      <com.android.server.status.AnimatedImageView
        android:layout_width="25dip"
        android:layout_height="25dip"
        />
      <com.android.server.status.AnimatedImageView
        android:layout_width="25dip"
        android:layout_height="25dip"
        />
    </ImageSwitcher>
    <com.android.server.status.TickerView android:id="@+id/tickerText"
      android:layout_width="0dip"
      android:layout_weight="1"
      android:layout_height="wrap_content"
      android:paddingTop="2dip"
      android:paddingRight="10dip">
      <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:textColor="#ff000000" />
      <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:singleLine="true"
        android:textColor="#ff000000" />
    </com.android.server.status.TickerView>
  </LinearLayout>
  <com.android.server.status.DateView android:id="@+id/date"
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:singleLine="true"
    android:textSize="16sp"
    android:textStyle="bold"
    android:gravity="center_vertical|left"
    android:paddingLeft="6px"
    android:paddingRight="6px"
    android:textColor="?android:attr/textColorPrimaryInverse"
    android:background="@drawable/statusbar_background"
    />
</com.android.server.status.StatusBarView>

<string-array name="status_bar_icon_order">
    <item><xliff:g id="id">clock</xliff:g></item>
    <item><xliff:g id="id">secure</xliff:g></item>
    <item><xliff:g id="id">alarm_clock</xliff:g></item>
    <item><xliff:g id="id">battery</xliff:g></item>
    <item><xliff:g id="id">phone_signal</xliff:g></item>
    <item><xliff:g id="id">phone_evdo_signal</xliff:g></item>
    <item><xliff:g id="id">data_connection</xliff:g></item>
    <item><xliff:g id="id">cdma_eri</xliff:g></item>
    <item><xliff:g id="id">tty</xliff:g></item>
    <item><xliff:g id="id">volume</xliff:g></item>
    <item><xliff:g id="id">mute</xliff:g></item>
    <item><xliff:g id="id">speakerphone</xliff:g></item>
    <item><xliff:g id="id">wifi</xliff:g></item>
    <item><xliff:g id="id">tty</xliff:g></item>
    <item><xliff:g id="id">bluetooth</xliff:g></item>
    <item><xliff:g id="id">gps</xliff:g></item>
    <item><xliff:g id="id">sync_active</xliff:g></item>
    <item><xliff:g id="id">sync_failing</xliff:g></item>
    <item><xliff:g id="id">ime</xliff:g></item>
</string-array>