帮忙修改时间显秒

<com.android.systemui.statusbar.policy.Clock android:textAppearance="@style/TextAppearance.StatusBar.Clock" android:textSize="@dimen/text_size" android:gravity="left|center" android:id="@id/clock" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_marginBottom="@dimen/oppo_battery_text_margin_bottom" android:singleLine="true" android:shadowColor="#54000000" android:shadowDx="0.0" android:shadowDy="0.0" android:shadowRadius="1.0" />
这是不是状态栏时间那段代码 如果是怎么修改 求大神帮帮忙