android - TabHost tabs are not horizontally scrolling when swiping using ViewPager -

i writing app uses many fragments. have used actionbarsherlock (with actionbar). work-around bug #240, i've decided switch functionally working implementation use actionbarsherlock tabhost. after half few hours of work, working fine, except when swiping between pages: correspondent tab selected, not centered , not visible user can't see tab selected.

in picture can see visible fragment ("weekly s..") tab only half visible. next swipe make "weekly s..." "calendar events" , won't know tab selected unless swipe tabwidget manually.

here activity_main.xml:

<tabhost xmlns:android="http://schemas.android.com/apk/res/android"     android:id="@android:id/tabhost"     android:layout_width="fill_parent"     android:layout_height="fill_parent" >      <linearlayout         android:orientation="vertical"         android:layout_width="fill_parent"         android:layout_height="fill_parent">          <horizontalscrollview              android:layout_width="wrap_content"             android:layout_height="wrap_content"             android:fillviewport="true"             android:scrollbars="none" >              <tabwidget                 android:id="@android:id/tabs"                 android:layout_width="wrap_content"                 android:layout_height="wrap_content"                 android:tabstripenabled="true"                 android:orientation="horizontal" />          </horizontalscrollview>          <framelayout             android:id="@android:id/tabcontent"             android:layout_width="fill_parent"             android:layout_height="0dp"             android:layout_weight="0"/>          <android.support.v4.view.viewpager             android:id="@+id/pager"             android:layout_width="match_parent"             android:layout_height="0dp"             android:layout_weight="1"/>      </linearlayout>  </tabhost> 

and tabsadapter same jake wharton's example of fragmenttabspager.

any suggestions welcome!

thanks post, , jucas in particular, managed work. here code:

@override public void onpagescrolled(int position, float positionoffset, int positionoffsetpixels) {     view tabview = mtabhost.gettabwidget().getchildat(position);     if (tabview != null)     {         final int width = mhorizontalscroll.getwidth();         final int scrollpos = tabview.getleft() - (width - tabview.getwidth()) / 2;         mhorizontalscroll.scrollto(scrollpos, 0);     } else {         mhorizontalscroll.scrollby(positionoffsetpixels, 0);     } } 

of course had mhorizontalscroll initialized in several places. (if isn't sure how it, i'll happy post full code.)