android - How do I bring a child layout in View/Focus/Screen -

i have following layout structure

    <linearlayout         id="@+id/papalayout"         >         <!-- ----------------------------------- -->         <relativelayout             id="@+id/daughter_a"             >         //some welcome message here. , 1 clickable item here.         </relativelayout>         <!-- ----------------------------------- -->         <relativelayout             id="@+id/daughter_b"             >         //some clickable items here         </relativelayout>         <!-- ----------------------------------- -->     </linearlayout> 

when app loads daughter_a takes of screen. inside daughter_a layout there 1 button. want daughter_b occupy screen click button in daughter_a.

i don't want use scrollview. can done without using scrollview ?