Como definir o cabeçalho e rodapé para o layout linear no android

Alguém pode me dizer como definir um cabeçalho e rodapé fixos para o layout relativo e o ponto central? Eu quero adicionar rolagem e adicionando matriz de webview dinamicamente quando eu quiser rolar o ponto central apenas rolável no android. Alguém pode dar um exemplo?

Tentei, mas a exibição da web da parte central não está aparecendo corretamente. Há algo para mudar?

meu código xml é

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"  android:id="@+id/mainrelativelayout"  android:layout_width="fill_parent" android:layout_height="fill_parent"> 

<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:id="@+id/linear1" android:layout_height="wrap_content"
    android:orientation="horizontal"

  >

<TextView  android:paddingRight="75dip" android:paddingLeft="20dip" android:text="Index" android:id="@+id/TextView01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@color/black" android:textStyle="bold"></TextView>
<TextView android:paddingRight="60dip"   android:text="Last" android:id="@+id/TextView02" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@color/black" android:textStyle="bold"></TextView>
<TextView  android:text="Change" android:id="@+id/TextView03" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@color/black" android:textStyle="bold"></TextView>
</LinearLayout>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
   android:id="@+id/linear1" android:layout_height="6dip"
     android:orientation="horizontal"

   >

<ImageView android:id="@+id/ImageView08" android:layout_gravity="center" android:background="@drawable/line" android:layout_width="fill_parent" android:layout_height="wrap_content"></ImageView>
</LinearLayout>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:id="@+id/linear2"
  android:orientation="horizontal"

  >
 <ImageView android:id="@+id/ImageView05" android:paddingTop="5dip" android:layout_gravity="center"  android:background="@drawable/down" android:layout_width="wrap_content" android:layout_height="wrap_content"></ImageView>
 <TextView  android:paddingRight="30dip" android:paddingLeft="10dip"   android:text="" android:id="@+id/txtindex0" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@color/black" android:textSize="12dip"></TextView>
<TextView  android:paddingRight="55dip"  android:text="" android:id="@+id/txtlast0" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@color/black" android:textSize="12dip"></TextView>
<TextView     android:text="" android:id="@+id/txtchange0" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="12dip" android:textColor="@color/red1"></TextView>
</LinearLayout>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:id="@+id/linear3"
  android:orientation="horizontal"

  >
<ImageView android:id="@+id/ImageView02" android:layout_gravity="center" android:background="@drawable/up" android:layout_width="wrap_content" android:layout_height="wrap_content"></ImageView>
<TextView  android:paddingRight="46dip"  android:paddingLeft="10dip"    android:text="" android:id="@+id/txtindex1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@color/black" android:textSize="12dip"></TextView>
<TextView  android:paddingRight="64dip"  android:text="" android:id="@+id/txtlast1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@color/black" android:textSize="12dip"></TextView>
<TextView  android:text="" android:id="@+id/txtchange1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="12dip" android:textColor="@color/green1"></TextView>
</LinearLayout>

<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:id="@+id/linear4"
   android:orientation="horizontal"

  >
<ImageView android:id="@+id/ImageView03" android:layout_gravity="center" android:background="@drawable/up" android:layout_width="wrap_content" android:layout_height="wrap_content"></ImageView>
<TextView  android:paddingRight="69dip"  android:paddingLeft="10dip"  android:text="" android:id="@+id/txtindex2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@color/black" android:textSize="12dip"></TextView>
<TextView  android:paddingRight="67dip"  android:text="" android:id="@+id/txtlast2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@color/black" android:textSize="12dip"></TextView>
<TextView  android:text="" android:id="@+id/txtchange2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="12dip" android:textColor="@color/green1"></TextView>

</LinearLayout>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:id="@+id/linear4"
    android:orientation="horizontal"

  >
<ImageView android:id="@+id/ImageView04" android:layout_gravity="center" android:background="@drawable/up" android:layout_width="wrap_content" android:layout_height="wrap_content"></ImageView>
<TextView  android:paddingRight="61dip" android:paddingLeft="10dip"   android:text="" android:id="@+id/txtindex3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@color/black" android:textSize="12dip"></TextView>
<TextView  android:paddingRight="65dip"  android:text="" android:id="@+id/txtlast3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@color/black" android:textSize="12dip"></TextView>
<TextView  android:text="" android:id="@+id/txtchange3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="12dip" android:textColor="@color/green1"></TextView>
</LinearLayout>

<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
   android:id="@+id/linear1" android:layout_height="4dip"
     android:orientation="horizontal"
      >

<ImageView android:id="@+id/ImageView08" android:layout_gravity="center" android:background="@drawable/line" android:layout_width="fill_parent" android:layout_height="wrap_content"></ImageView>
</LinearLayout>

<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="15dip"
  android:id="@+id/linear5"
  android:orientation="horizontal"

  >
<TextView android:text="Market data delayed at least 15 minutes " android:id="@+id/TextView16" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="12dip" android:textColor="@color/gray2"></TextView>
</LinearLayout>
</LinearLayout>
<------ finishing header-------->

<---------- adicionando rodapé ----------->

<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:id="@+id/imglinear"
  android:background="@color/white"
  android:layout_alignParentBottom="true"
  >
<ImageView android:id="@+id/ImageView15" android:src="@drawable/quest_i" android:layout_gravity="center"  android:layout_width="wrap_content" android:layout_height="wrap_content"></ImageView>
</LinearLayout>

<-------------- rodapé de acabamento ------->

<------------ ponto central da tela --------->

<RelativeLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:orientation="vertical"
  android:background="@color/white"
  android:id="@+id/mainlinear3"
  android:layout_above="@+id/imglinear"
  android:layout_below="@+id/mainlinear2"
   >
  <ScrollView android:id="@+id/ScrollView01" 
     android:layout_width="wrap_content" android:layout_height="wrap_content">  
 <RelativeLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="wrap_content"
  android:orientation="vertical"
  android:background="@color/white"
  android:id="@+id/relative3">

  </RelativeLayout>
  </ScrollView>
</RelativeLayout>

<----------- final do ponto central ---------->

</RelativeLayout>

obrigado

questionAnswers(1)

yourAnswerToTheQuestion