HorizontalScrollView嵌套GridView单行滚动的问题.求助

android:id="@+id/hs_contact_scrollView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:fadingEdge="none"
android:scrollbars="none" >

android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:gravity="center_vertical"
android:orientation="horizontal" >
android:id="@+id/gv_selected_contacts"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_marginLeft="10.0dip"
android:layout_marginRight="10.0dip"
android:cacheColorHint="@null"
android:columnWidth="40.0dip"
android:fadingEdge="none"
android:horizontalSpacing="5.5dip"
android:listSelector="@android:color/transparent"
android:numColumns="9999999"
android:scrollbars="none"
android:stretchMode="none"
android:verticalSpacing="0.0dip" />