Scroll at the bottom of the activity on onclick listener

In my Android app, I have a few views (Buttons, EditTexts etc.) not visible initially. These are visible only on a particular button click event. I wish to move the scrollview to the end of these views so that these are visible to the user.

The relevant portion of the layout file:

    <ScrollView...>

    <RelativeLayout android:id="@+id/RelDevDet"
            android:layout_width="fill_parent" android:layout_height="wrap_content">
            .
            .
            .
            <ImageButton android:id="@+id/ibRateApp"
                android:layout_toRightOf="@id/tvRateApp"
                android:layout_alignTop="@id/tvRateApp"
                android:layout_width="wrap_content" android:layout_height="wrap_content"
                android:background="@drawable/arrow_up" android:clickable="true"
                android:layout_marginRight="5dp"
                android:paddingBottom="10dp"
                 />
            <RatingBar android:id="@+id/rtApp" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/tvRateApp"
                android:layout_marginLeft="5dp" android:visibility="gone"/>
            <EditText android:layout_width="fill_parent"
                android:id="@+id/etRateApp"
                android:layout_height="wrap_content" 
                android:lines="3"
                android:layout_below="@+id/rtApp"
                android:layout_marginRight="5dp"
                android:layout_alignLeft="@+id/tvDevWeb"
                android:visibility="gone" />
            <Button android:id="@+id/btSubRat" android:layout_width="fill_parent" android:layout_height="wrap_content"
                android:layout_below="@+id/etRateApp" android:layout_margin="5dp" android:text="Submit" android:visibility="gone"/>
        </RelativeLayout>
        </ScrollView>

The onclicklistener for the button is:

public void onClick(View v) {
if(v.getId()== R.id.ibRateApp){
            Log.d("amit","scroll end");
            rtApp.setVisibility(View.VISIBLE);
            etRateApp.setVisibility(View.VISIBLE);
            //How to get the scrollview move to the end of the page here??
        }
}

scroll.fullScroll(View.FOCUS_DOWN);

This fixed it for me.