Develop Reference

How to edit Layout to full length of screen?

i have an app which has a main RelativeLayout and some LinearLayout within it.
My problem is that the LinearLayout doesn't fit to the full lenght of the screen:
this is my xml file :
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#color/bgApp" >
<LinearLayout
android:id="#+id/mainView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="#dimen/topBarHeight"
android:background="#drawable/top"
android:gravity="center"
android:orientation="vertical" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center_vertical"
android:orientation="horizontal"
android:background="#android:color/transparent" >
<ImageView
android:id="#+id/scoreLogo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/coin_icon"
android:contentDescription="#string/app_name"/>
<TextView
android:id="#+id/mainScreenTotalPoints"
style="#style/pointTxt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="#dimen/btnPaddingV"
android:text="#string/startPoint"
android:textSize="#dimen/buttonTextSize" />
</LinearLayout>
</LinearLayout>
<TextView
android:id="#+id/logo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="#dimen/logPadding"
android:text="#string/app_name"
android:textColor="#d0105e"
android:textSize="27sp"
android:textStyle="bold"/>
<LinearLayout
android:id="#+id/root"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingLeft="#dimen/btnPadding"
android:paddingRight="#dimen/btnPadding" >
<Button
android:id="#+id/play"
android:layout_width="fill_parent"
android:layout_height="#dimen/buttonHeight"
android:background="#drawable/button_blue"
android:gravity="center"
android:onClick="onButtonClickPlay"
android:text="#string/play"
android:textColor="#color/btnMain"
android:textSize="#dimen/buttonTextSize" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="bottom"
android:orientation="vertical"
android:paddingTop="#dimen/mainbox" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingBottom="#dimen/btnPadding" >
<Button
android:id="#+id/btn_how"
style="#style/btnCapital"
android:layout_width="fill_parent"
android:layout_height="#dimen/buttonHeight"
android:layout_marginRight="#dimen/btnPaddingV"
android:layout_weight="1.0"
android:background="#drawable/button_green_how"
android:onClick="onButtonClickHowToPlay"
android:text="#string/howInfo" />
<Button
android:id="#+id/btn_rate"
style="#style/btnCapital"
android:layout_width="fill_parent"
android:layout_height="#dimen/buttonHeight"
android:layout_marginLeft="#dimen/btnPaddingV"
android:layout_weight="1.0"
android:background="#drawable/button_rate"
android:onClick="onButtonClickRate"
android:text="#string/rateInfo" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingBottom="#dimen/btnPadding" >
<Button
android:id="#+id/sound"
style="#style/btnCapital"
android:layout_width="0dp"
android:layout_height="#dimen/buttonHeight"
android:layout_marginTop="1.0dip"
android:layout_weight="1.0"
android:background="#drawable/mute_01"
android:gravity="center"
android:onClick="onButtonClickSound"
android:text="#string/mute" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingBottom="#dimen/btnPadding" >
<Button
android:id="#+id/moreapp"
style="#style/btnCapital"
android:layout_width="0dp"
android:layout_height="#dimen/buttonHeight"
android:layout_marginTop="1.0dip"
android:layout_weight="1.0"
android:background="#drawable/button_blue"
android:gravity="center"
android:onClick="onButtonClickMoreApp"
android:text="#string/moreapp" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="bottom"
android:gravity="center"
android:orientation="vertical" >
<com.google.android.gms.ads.AdView
android:id="#+id/adView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="bottom"
ads:adSize="BANNER"
ads:adUnitId="#string/admob_publisher_id"
android:gravity="bottom" />
</LinearLayout>
</LinearLayout>
</ScrollView>
here is a screenshot :
Screenshot after running app
and here a screenshot of layout before running app:
Screenshot before running app
Thank you in advance !

You need to use the ScrollView attribute called android:fillViewport="true". This attribute causes the scroll view’s child to expand to the height of the ScrollView if needed.
When the child is taller than the ScrollView, the attribute has no effect.
Check out this for detail explanation.

You have to use attribute android:fillViewport="true".in your scrollview.

Android: TextView not appearing below ListView

I checked out a similar question to this but it didn't solve my problem.
From top to bottom, I'm try to display:
a TextView (header)
a ListView with an index strip to the right of it (I use horizontal LinearLayout for this pair)
a TextView (footer)
Everything appears except my footer TextView.
Can somebody please tell me what is wrong with my XML?
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:orientation="vertical"
android:layout_height="fill_parent" >
<TextView
android:id="#+id/tvHeader"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="TextView"
android:background="#00F"
android:textColor="#android:color/white"
android:textStyle="bold" />
<LinearLayout
android:layout_width="fill_parent"
android:orientation="horizontal"
android:layout_height="wrap_content" >
<ListView
android:id="#android:id/list"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:fastScrollEnabled="true" />
<LinearLayout
android:id="#+id/sideIndex"
android:layout_width="40dip"
android:layout_height="wrap_content"
android:background="#FFF"
android:gravity="center_horizontal"
android:orientation="vertical" >
</LinearLayout>
</LinearLayout>
<TextView
android:id="#+id/tvFooter"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="TextView"
android:background="#0F0"
android:textColor="#F00"
android:textStyle="bold" />
</LinearLayout>

Try this..
change android:layout_height="wrap_content" to android:layout_height="0dp" and add android:layout_weight = "1" for the middle LinearLayout
Change this..
<LinearLayout
android:layout_width="fill_parent"
android:orientation="horizontal"
android:layout_height="wrap_content" >
to
<LinearLayout
android:layout_width="fill_parent"
android:orientation="horizontal"
android:layout_weight = "1"
android:layout_height="0dp" >
LinearLayout
1) http://developer.android.com/reference/android/widget/LinearLayout.html
2) http://developer.android.com/guide/topics/ui/layout/linear.html
RelativeLayout
1) http://developer.android.com/reference/android/widget/RelativeLayout.html
2) http://developer.android.com/guide/topics/ui/layout/relative.html

Better you try RelativeLayout. Check this
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="#+id/tvHeader"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#00F"
android:text="TextView"
android:textColor="#android:color/white"
android:textStyle="bold" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/tvFooter"
android:layout_below="#+id/tvHeader"
android:orientation="horizontal" >
<ListView
android:id="#android:id/list"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:fastScrollEnabled="true" />
<LinearLayout
android:id="#+id/sideIndex"
android:layout_width="40dip"
android:layout_height="wrap_content"
android:background="#FFF"
android:gravity="center_horizontal"
android:orientation="vertical" >
</LinearLayout>
</LinearLayout>
<TextView
android:id="#+id/tvFooter"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:background="#0F0"
android:text="TextView"
android:textColor="#F00"
android:textStyle="bold" />
</RelativeLayout>

add this attribute to your 2nd Linear layout.
android:layout_weight = "1"
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:orientation="vertical"
android:layout_height="fill_parent" >
<TextView
android:id="#+id/tvHeader"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="TextView"
android:background="#00F"
android:textColor="#android:color/white"
android:textStyle="bold" />
<LinearLayout
android:layout_width="fill_parent"
android:orientation="horizontal"
android:layout_height="wrap_content"
android:layout_weight = "1" <!-- here -->
>
.......

You could use a RelativeLayout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="#+id/tvHeader"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="TextView"
android:background="#00F"
android:textColor="#android:color/white"
android:textStyle="bold" />
<TextView
android:id="#+id/tvFooter"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:background="#0F0"
android:text="TextView"
android:textColor="#F00"
android:textStyle="bold" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_below="#+id/tvHeader"
android:layout_above="#+id/tvFooter"
android:orientation="horizontal"
android:layout_height="wrap_content" >
<ListView
android:id="#android:id/list"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:fastScrollEnabled="true" />
<LinearLayout
android:id="#+id/sideIndex"
android:layout_width="40dip"
android:layout_height="wrap_content"
android:background="#FFF"
android:gravity="center_horizontal"
android:orientation="vertical" >
</LinearLayout>
</LinearLayout>
</RelativeLayout>

Use RelativeLayout, it will be easier to show or reposition other items.

How to merge Linear Layout and Table Layout at android?

I'm new android. I have a little bit stack in designing layout for Android. In my scenario, I have two button with Linear Layout. Here my xml.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/linearLayout2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal"
android:background="#color/isp_home_color"
>
<Button
android:layout_width="0dp"
android:layout_height="70dp"
android:layout_weight="1"
android:text="#string/sync_text"
android:background="#color/sync_text_color"
android:id="#+id/btn_syncpin"
android:layout_gravity="left"
android:textStyle="bold"
/>
<Button
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="70dp"
android:text="#string/topup_text"
android:background="#color/topup_text_color"
android:id="#+id/btn_topup"
android:layout_gravity="right"
android:textStyle="bold"/>
<!--Table Layout will come here -->
</LinearLayout>
Here image for this.
When I add new TableLayout inside Linear Layout. I got this.
Here my xml for Table Layout.
<TableLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
</TableLayout>
Actually, I don't want like this. I want two button as shown in first image. Then, next table layout will occur under this two button. Please help me how can I do this layout. Please pointing to me how to make this. Thanks with advanced.

Give orientation as vertical to the LinearLayout not the TableLayout.Put Two buttons in a LinearLayout with orizontal orientation and give orientation "vertical" for the parent LinearLayout
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/linearLayout2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#456789"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#FFFFFF"
android:orientation="horizontal">
<Button
android:id="#+id/btn_syncpin"
android:layout_width="wrap_content"
android:layout_height="70dp"
android:layout_gravity="left"
android:layout_weight="1"
android:background="#123456"
android:text="tring/"
android:textStyle="bold" />
<Button
android:id="#+id/btn_topup"
android:layout_width="wrap_content"
android:layout_height="70dp"
android:layout_gravity="right"
android:layout_weight="1"
android:background="#978969"
android:text="topup_text"
android:textStyle="bold" />
</LinearLayout>
<TableLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#FFFFFF" >
</TableLayout>
</LinearLayout>

Check this out, I just checked it on my Machine and it works as desired, although the background preference and the display strings have been removed.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<Button
android:id="#+id/btn_syncpin"
android:layout_width="0dp"
android:layout_height="70dp"
android:layout_gravity="left"
android:layout_weight="1"
android:textStyle="bold" />
<Button
android:id="#+id/btn_topup"
android:layout_width="0dp"
android:layout_height="70dp"
android:layout_gravity="right"
android:layout_weight="1"
android:textStyle="bold" />
</LinearLayout>
<TableLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_below="#+id/linearLayout2">
</TableLayout>
</RelativeLayout>

take Relative Layout as a parent layout.
Following is an example. it will display your buttons and table layout too
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/linearLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#color/isp_home_color"
android:orientation="horizontal" >
<Button
android:id="#+id/btn_syncpin"
android:layout_width="0dp"
android:layout_height="70dp"
android:layout_gravity="left"
android:layout_weight="1"
android:background="#color/sync_text_color"
android:text="#string/sync_text"
android:textStyle="bold" />
<Button
android:id="#+id/btn_topup"
android:layout_width="0dp"
android:layout_height="70dp"
android:layout_gravity="right"
android:layout_weight="1"
android:background="#color/topup_text_color"
android:text="#string/topup_text"
android:textStyle="bold" />
</LinearLayout>
<TableLayout
android:id="#+id/table"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="#+id/linearLayout2" >
</TableLayout>
</RelativeLayout>
thanks

This answer tells only implementation of button_bar_layout for all android versions with buttons at the bottom/top of an activity which look like AlertDialog with OK/Cancel buttons.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:divider="?android:attr/listDivider"
android:orientation="vertical"
android:showDividers="middle" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#null"
android:divider="?android:attr/listDivider"
android:dividerPadding="12dp"
android:orientation="horizontal"
android:showDividers="middle" >
<Button
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#android:drawable/list_selector_background"
android:paddingLeft="4dp"
android:paddingRight="4dp"
android:text="One" />
<Button
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:background="#android:drawable/list_selector_background"
android:paddingLeft="4dp"
android:paddingRight="4dp"
android:text="Two" />
</LinearLayout>
<TableLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#FFFFFF" >
</TableLayout>
</LinearLayout>
Credits: Who else ? Johnkil

// try this way here i gave you alternative to achieve your requirement from give all of above
1. header.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:background="#color/isp_home_color">
<Button
android:layout_width="0dp"
android:layout_height="70dp"
android:layout_weight="1"
android:text="#string/sync_text"
android:background="#color/sync_text_color"
android:id="#+id/btn_syncpin"
android:textStyle="bold"/>
<Button
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="70dp"
android:text="#string/topup_text"
android:background="#color/topup_text_color"
android:id="#+id/btn_topup"
android:textStyle="bold"/>
</LinearLayout>
2.main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="5dp"
android:orientation="vertical">
<include
layout="#layout/header"/>
<TableLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginTop="10dp"
android:layout_weight="1">
</TableLayout>
</LinearLayout>

The android layout lacks proportion when I set the background of Imagebutton.

The android layout lacks proportion when I set the background of Imagebutton.
And the code of xml is like the following:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:baselineAligned="false"
android:orientation="vertical" >
<FrameLayout
android:id="#+id/player_frame"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/buttonLayout" >
<FrameLayout
android:id="#+id/player_surface_frame"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center" >
<SurfaceView
android:id="#+id/player_surface"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center" />
</FrameLayout>
</FrameLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<Button
android:id="#+id/findCameraButton"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="4"
android:text="#string/label_find_camera" />
<Button
android:id="#+id/SettingButton"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="4"
android:text="#string/Camera_WiFi_setup" />
<ImageButton
android:id="#+id/FileSavebutton"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="4"
android:background="#drawable/save_in_camera" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/TimeStampLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dip"
android:text=""
android:textColor="#ffff00"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<Button
android:id="#+id/snapshotButton"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="4"
android:text="#string/label_app_snapshot" />
<Button
android:id="#+id/recordButton"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="4"
android:text="#string/label_app_record" />
<ImageButton
android:id="#+id/photo_record_mode"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="4"
android:background="#drawable/turn_to_photomode"/>
</LinearLayout>
</LinearLayout>
</RelativeLayout>
How to setup can make the top of LinearLayout no deformation like the LinearLayout of bottom ?

Have you tried changing all the android:layout_height values from match_parent to wrap_content?

i think you should use scaleType to get your image look nice
prefer fitXY
like that
android:scaleType="fitXY"
put inside your xml to be whole code like that
<ImageButton
android:id="#+id/photo_record_mode"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="4"
android:background="#drawable/turn_to_photomode"
android:scaleType="fitXY"/>

3 layouts - middle is flexible

I need the following thing:
3 layouts:
Header
Content
Footer
Header must be on the top footer must be sticked to the bottom (android:layout_alignParentBottom="true").
But how to make middle to occupy the whole other screen? Thanks.

Here is my solution (with android:layout_weight and ScrollView):
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#DDDDDD"
android:gravity="center"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Header"
tools:ignore="HardcodedText" />
</LinearLayout>
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="3" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Content"
tools:ignore="HardcodedText" />
</ScrollView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#DDDDDD"
android:gravity="center"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Footer"
tools:ignore="HardcodedText" />
</LinearLayout></LinearLayout>
And the result picture :

Hi Use the following lines
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:text="Button" >
<Button
android:id="#+id/button2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Header" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/linearfooter"
android:layout_below="#+id/button1"
android:background="#android:color/darker_gray"
>
</LinearLayout>
<LinearLayout
android:id="#+id/linearfooter"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="Button" >
<Button
android:id="#+id/button2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="footer" />
</LinearLayout>
</RelativeLayout>
hope this helps you.

Use a height of 0dp and
android:layout_weight
set to 1

Finally I've got the next solution:
To the middle layout I added:
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#id/footer"
android:layout_below="#id/header"
android:layout_weight="1">
And it works!