PagerTitleStrip without title bar indicator

问题

I'm using PagerTitleStrip for first time run app tutorial. Since I need to see the content of the whole full screen in the activity below, I would like to hide the title bar of the PagerTitleStrip (the bar where the steps number are showed). How to do this ?

<android.support.v4.view.PagerTitleStrip
       android:id="@+id/pager_title_strip"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:layout_gravity="top"
       android:background="#000000"
       android:paddingBottom="4dp"
       android:paddingTop="4dp"
       android:textColor="#fff" />

    </android.support.v4.view.ViewPager>

来源：https://stackoverflow.com/questions/26214762/pagertitlestrip-without-title-bar-indicator