android - AdView layout takes up whole screen -

i have following xml layout:

            <relativelayout                 android:layout_width="fill_parent"                 android:layout_height="fill_parent">                  <scrollview                     android:layout_width="fill_parent"                     android:layout_height="fill_parent"                     android:fillviewport="true"                     android:layout_above="@+id/adcontent1"                     android:background="#0000ff">                      <textview                     android:id="@+id/tempview"                     android:layout_width="fill_parent"                     android:layout_height="wrap_content"/>                  </scrollview>                  <relativelayout                     android:layout_width="match_parent"                     android:layout_height="wrap_content"                     android:background="#ff0000"                     android:layout_alignparentbottom="true"                     android:id="@+id/adcontent1" >                      <com.google.ads.adview                         xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"                         android:id="@+id/adview1"                         android:layout_width="wrap_content"                         android:layout_height="wrap_content"                         app:adsize="banner"                         app:adunitid="lah-di-da"                         android:layout_alignparentbottom="true"                         android:layout_centerhorizontal="true">                      </com.google.ads.adview>                   </relativelayout>              </relativelayout> 

the problem is, reason, wrap_content adview relativelayout height attribute causes whole relativelayout take whole screen. if set hard value (50px) scrollview taking whole screen - 50px (like want, except relativelayout height should equal adview height. know why adview forces parent relativelayout fill screen?

note: there layouts behind these, have no influence on specific issue (as tested setting height = 50px).

try set height of ad '50dp' , post results