[Galaxy Note 3 Themes and Apps] thanhfhuongf:
add this code

<FrameLayout android:id="@id/call_background" android:layout_width="fill_parent" android:layout_height="fill_parent" />
<ImageView android:id="@id/notification_lights_out" android:paddingBottom="2.0dip" android:visibility="gone" android:layout_width="@dimen/status_bar_icon_size" android:layout_height="fill_parent" android:src="@drawable/ic_sysbar_lights_out_dot_small" android:scaleType="center" android:paddingStart="6.0dip" />
<LinearLayout android:orientation="horizontal" android:id="@id/status_bar_contents" android:layout_width="fill_parent" android:layout_height="fill_parent" android:paddingStart="6.0dip" android:paddingEnd="8.0dip">
<com.android.systemui.statusbar.AlphaOptimizedFrameLayout android:orientation="horizontal" android:id="@id/notification_icon_area" android:layout_width="0.0dip" android:layout_height="fill_parent" android:layout_weight="1.0" android:alpha="0.74">
<com.android.keyguard.AlphaOptimizedLinearLayout android:id="@id/notification_icon_area_inner" android:layout_width="fill_parent" android:layout_height="fill_parent">
<TextView android:textSize="15.0dip" android:textColor="#ffffffff" android:gravity="center_vertical" android:id="@id/carrierLabel" android:visibility="gone" android:layout_width="wrap_content" android:layout_height="fill_parent" android:singleLine="true" />
<ImageView android:id="@id/operatorLogoIcon" android:visibility="gone" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/tw_stat_notify_operator_logo" />
<ImageView android:id="@id/operatorLogoIcon_org" android:visibility="gone" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/tw_stat_notify_operator_logo_org" />
<com.android.systemui.statusbar.StatusBarIconView android:id="@id/moreIcon" android:visibility="gone" android:layout_width="@dimen/status_bar_icon_size" android:layout_height="fill_parent" android:src="@drawable/stat_notify_more" />
<com.android.systemui.statusbar.phone.IconMerger android:gravity="center_vertical" android:orientation="horizontal" android:id="@id/notificationIcons" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_alignParentStart="true" />
</com.android.keyguard.AlphaOptimizedLinearLayout>
</com.android.systemui.statusbar.AlphaOptimizedFrameLayout>
<com.android.systemui.statusbar.policy.Clock android:textAppearance="@style/TextAppearance.StatusBar.Clock" android:gravity="center" android:id="@id/clock" android:layout_width="wrap_content" android:layout_height="fill_parent" android:singleLine="true" android:alpha="0.74" android:paddingStart="7.0dip" />
<LinearLayout android:gravity="right|center" android:orientation="horizontal" android:id="@id/system_icon_area" android:layout_width="0.0dip" android:layout_height="fill_parent" android:layout_weight="1.0" android:layout_alignParentRight="true" android:alpha="0.8">
<com.android.keyguard.AlphaOptimizedLinearLayout android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="fill_parent">
<include layout="@layout/system_icons" />
</com.android.keyguard.AlphaOptimizedLinearLayout>
</LinearLayout>
</LinearLayout>
[COLOR="Red"] <com.android.systemui.statusbar.policy.KeyButtonView android:layout_gravity="center" android:id="@id/back" android:layout_width="60.0dip" android:layout_height="fill_parent" android:src="#00000000" android:layout_toRightOf="@id/recent_apps" android:contentDescription="@string/accessibility_back" systemui:keyCode="26" systemui:keyRepeat="false" androidundefinedrientation="vertical" />[/COLOR]
<ViewStub android:id="@id/ticker_stub" android:layout="@layout/status_bar_ticker" android:inflatedId="@id/ticker" android:layout_width="fill_parent" android:layout_height="fill_parent" />
</com.android.systemui.statusbar.phone.PhoneStatusBarView>

you can move to left or right

android:layout_gravity="center"