<ScrollView android:id="@+id/scroll_farbe" android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_alignParentTop="true" android:layout_toRightOf="@+id/img_hinter">
        <LinearLayout android:id="@+id/scroll_farbe_ll" android:layout_height="1235dp" android:layout_width="wrap_content" android:background="@drawable/farbstreifen" android:orientation="vertical">
            <TextView android:id="@+id/btn_farbe" android:text="" android:layout_width="60dp" android:layout_height="63dp"/>
...              
            <TextView android:id="@+id/btn_farbe" android:text="" android:layout_width="60dp" android:layout_height="63dp"/>            
            <TextView android:id="@+id/btn_farbe" android:text="" android:layout_width="60dp" android:layout_height="63dp"/>
        </LinearLayout>

public class Afarben extends Activity implements OnScrollListener {

    private ScrollView scrollView;
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
    ....
        
        scrollView = (ScrollView)findViewById(R.id.scroll_farbe);
        //scrollView.setOnScroll ???
        //oder
        //scrollView.setScroll ???

    }

    @Override
    public void onScroll(AbsListView view, int firstVisibleItem,
            int visibleItemCount, int totalItemCount) {
    }

    @Override
    public void onScrollStateChanged(AbsListView view, int scrollState) {
    }
}