Develop Reference

set adjustable listView between two hardcoded items

I want to set list view between two hardcoded items. I can't leave the height value blank in listView, cause it's disappear. I try with wrap/fill.. but all this things making my listView fill whole layout. Here is my code:
<?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="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge" />
<ListView
android:id="#+id/choose_list_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/relativeLayout1" >
</ListView>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:background="#drawable/buton_style" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="90dp" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/addToBasketName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Produkty:"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/choose_produkty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Do zapłaty:"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/choose_do_zaplaty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
</LinearLayout>
<Button
android:id="#+id/addToBasket"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:text="Do kasy" />
</RelativeLayout>
How would you solve this problem?

By default , all your Views will be placed at the top left corner in your RelativeLayout. So you will usually want to add layout_below or layout_top to your component.
For a more detail description for RelativeLayout, see this

Try this one
<ListView
android:id="#+id/choose_list_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/relativeLayout1"
android:layout_below="#+id/textView1" >

Use a LinearLayout as the outmost container, and setthis to the ListView:
layout_height="0px
layout_weight="1"

// try this way
<?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:padding="5dp"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge" />
<ListView
android:id="#+id/choose_list_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginTop="5dp"
android:layout_weight="1">
</ListView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp">
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:layout_weight="1">
<LinearLayout
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/addToBasketName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Produkty:"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/choose_produkty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Do zapłaty:"
android:textAppearance="?android:attr/textAppearanceMedium" />
<TextView
android:id="#+id/choose_do_zaplaty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Medium Text"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
</LinearLayout>
<Button
android:id="#+id/addToBasket"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Do kasy" />
</LinearLayout>
</LinearLayout>

How to align ImageView & TextView align right in a Linear Layout

I would like show my Page view header like below,
I'm using the following layout using, but the image and second textview not moving to right, its all align center.
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:orientation="horizontal" >
<LinearLayout
android:layout_width="0dip"
android:layout_height="fill_parent"
android:layout_weight="6"
android:background="#drawable/transbg"
android:gravity="center"
android:orientation="vertical" >
<TableRow
android:id="#+id/tableRow1"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="6"
android:gravity="center"
>
<TextView
android:id="#+id/txtName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Magasin"
android:textColor="#FFF"
android:textSize="18sp"
android:textStyle="bold" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:orientation="horizontal">
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
android:src="#drawable/yellow2" />
<TextView
android:id="#+id/tvCredits"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
android:text="test"
android:textColor="#fff"
android:textSize="16sp" />
</LinearLayout>
</TableRow>
</LinearLayout>
</LinearLayout>
how I can align one image view and textview right aligned.

Check out this one and let me know if it is what you want.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="6"
android:background="#drawable/ic_launcher"
android:gravity="center"
android:orientation="vertical" >
<TableRow
android:id="#+id/tableRow1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="6"
android:background="#android:color/black"
android:gravity="center" >
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/txtName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:text="Magasin"
android:textColor="#FFF"
android:textSize="18sp"
android:textStyle="bold" />
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
android:src="#drawable/ic_launcher"
android:layout_toLeftOf="#+id/tvCredits" />
<TextView
android:id="#+id/tvCredits"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:text="test"
android:textColor="#fff"
android:textSize="16sp" />
</RelativeLayout>
</TableRow>
</LinearLayout>
EDIT : If you want to make the same layout with easier and more efficient way, you can use this one.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#android:color/black" >
<TextView
android:id="#+id/txtName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:text="Magasin"
android:textColor="#FFF"
android:textSize="18sp"
android:textStyle="bold" />
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toLeftOf="#+id/tvCredits"
android:src="#drawable/ic_launcher" />
<TextView
android:id="#+id/tvCredits"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:text="test"
android:textColor="#fff"
android:textSize="16sp" />
</RelativeLayout>

// try this way
<?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:gravity="center"
android:padding="5dp"
android:orientation="horizontal" >
<TextView
android:id="#+id/txtName"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:text="Magasin"
android:textColor="#FFF"
android:gravity="center"
android:textSize="18sp"
android:textStyle="bold" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal">
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_launcher"
android:adjustViewBounds="true"/>
<TextView
android:id="#+id/tvCredits"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="test"
android:textColor="#fff"
android:textSize="16sp"
android:layout_marginLeft="5dp"/>
</LinearLayout>
</LinearLayout>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="right">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:orientation="horizontal" >
<LinearLayout
android:layout_width="0dip"
android:layout_height="fill_parent"
android:layout_weight="6"
android:background="#drawable/transbg"
android:gravity="center"
android:orientation="vertical" >
<TableRow
android:id="#+id/tableRow1"
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="6"
android:gravity="center"
>
<TextView
android:id="#+id/txtName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Magasin"
android:textColor="#FFF"
android:textSize="18sp"
android:textStyle="bold" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0"
android:gravity="right|center"
android:orientation="horizontal">
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
android:src="#drawable/yellow2" />
<TextView
android:id="#+id/tvCredits"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
android:text="test"
android:textColor="#fff"
android:textSize="16sp" />
</LinearLayout>
</TableRow>
</LinearLayout>
</LinearLayout>
</LinearLayout>

How to fill the layout to entire available width in Android

While developing a layout today I found some weird thing my Linear layout is not filling the available space .
//Image removed
My left layout is re-sizing according to content but i don't want that. What I want is the right edge of left hand side layout should touch the left edge of right layout.
I have tried both fill parent and wrap content with layout_weight but nothing is happening what i want is something like this.
// Image removed
My layout code :
<?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:paddingTop="6dp"
android:paddingBottom="6dp"
android:paddingLeft="7dp"
android:paddingRight="7dp">
<RelativeLayout
android:id="#+id/total_top_layout"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:paddingBottom="10dp"
android:layout_centerHorizontal="true">
<TextView
android:id="#+id/ammount_view"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="First Text Here"
android:textSize="20sp"
android:layout_centerVertical="true" />
<EditText
android:id="#+id/total_ammount_input"
android:layout_height="wrap_content"
android:layout_width="150dp"
android:singleLine="true"
android:layout_alignParentRight="true"
android:background="#color/hologreennewdark"
android:text="second Text"
android:layout_centerVertical="true"
android:padding="8dp"
android:gravity="center"
android:textColor="#color/WhiteSmoke" />
</RelativeLayout>
<View
android:id="#+id/divideaftertotal"
android:layout_width="#dimen/divide_width"
android:layout_height="#dimen/divider_height"
android:background="#color/YellowGreen"
android:layout_below="#+id/total_top_layout"
/>
<RelativeLayout
android:id="#+id/tens_view_top"
android:layout_below="#id/divideaftertotal"
android:layout_height="75dp"
android:layout_width="wrap_content"
>
<LinearLayout
android:id="#+id/tens_view_left"
android:layout_alignParentLeft="true"
android:orientation="vertical"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_centerInParent="true"
>
<LinearLayout
android:id="#+id/firstcoloumn"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:orientation="vertical"
android:layout_weight="1"
>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:gravity="center"
android:orientation="horizontal"
>
<TextView
android:id="#+id/amount_rupee"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:text="Num1"
android:layout_centerVertical="true"
android:textSize="25sp" />
<TextView
android:id="#+id/multiply_sign"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="X"
android:layout_centerVertical="true"
android:textSize="26sp"
android:layout_toRightOf="#id/amount_rupee"
android:layout_marginLeft="40dp" />
<TextView
android:id="#+id/multiple_digit"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Num2"
android:layout_centerVertical="true"
android:textSize="25sp"
android:layout_toRightOf="#+id/multiply_sign"
android:layout_marginLeft="40dp" />
</LinearLayout>
<SeekBar
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_below="#+id/multiple_digit"
android:layout_marginTop="8dp"
/>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_height="100dp"
android:layout_width="wrap_content"
android:background="#color/hologreendark"
android:layout_alignParentRight="true">
<TextView
android:id="#+id/amount_rupee"
android:layout_height="fill_parent"
android:layout_width="100dp"
android:text="Num3"
android:layout_centerVertical="true"
android:textSize="25sp"
android:gravity="center"
/>
</LinearLayout>
</RelativeLayout>
<View
android:id="#+id/divideaftertens"
android:layout_width="#dimen/divide_width"
android:layout_height="#dimen/divider_height"
android:background="#color/YellowGreen"
android:layout_below="#+id/tens_view_top"
/>
</RelativeLayout>

On the layout android:id="#+id/tens_view_left", you could add this 2 atributes:
android:layout_alignParentLeft="true"
so that its left side is anchored in its parent's left border, and
android:layout_toLeftOf="#id/id_from_the_linear_layout_on_the_right"
And that layout is:
<LinearLayout
android:id="#+id/id_from_the_linear_layout_on_the_right"
android:layout_height="100dp"
android:layout_width="wrap_content"
android:background="#color/hologreendark"
android:layout_alignParentRight="true">
<TextView
android:id="#+id/amount_rupee"
android:layout_height="fill_parent"
android:layout_width="100dp"
android:text="Num3"
android:layout_centerVertical="true"
android:textSize="25sp"
android:gravity="center"
/>
</LinearLayout>
By the way, you might need to set android:orientation="horizontal"
on the layout android:id="#+id/tens_view_top"

When using layout_weight, set the layout_width to 0dp (for horizontal orientation).

it could be like,
<LinearLayout
android:id="#+id/tens_view_left"
android:layout_alignParentLeft="true"
android:orientation="vertical"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_centerInParent="true"
>
<LinearLayout
android:id="#+id/firstcoloumn"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:orientation="horizontal"
>
<LinearLayout
android:layout_height="fill_parent"
android:layout_width="0dp"
android:orientation="vertical"
android:layout_weight="1">
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:gravity="center"
android:orientation="horizontal"
>
<TextView
android:id="#+id/amount_rupee"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:text="Num1"
android:layout_centerVertical="true"
android:textSize="25sp" />
<TextView
android:id="#+id/multiply_sign"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="X"
android:layout_centerVertical="true"
android:textSize="26sp"
android:layout_toRightOf="#id/amount_rupee"
android:layout_marginLeft="40dp" />
<TextView
android:id="#+id/multiple_digit"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Num2"
android:layout_centerVertical="true"
android:textSize="25sp"
android:layout_toRightOf="#+id/multiply_sign"
android:layout_marginLeft="40dp" />
</LinearLayout>
<SeekBar
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_below="#+id/multiple_digit"
android:layout_marginTop="8dp"
/>
</LinearLayout>
<LinearLayout
android:layout_height="100dp"
android:layout_width="wrap_content"
android:background="#color/hologreendark"
android:layout_alignParentRight="true">
<TextView
android:id="#+id/amount_rupee"
android:layout_height="fill_parent"
android:layout_width="100dp"
android:text="Num3"
android:layout_centerVertical="true"
android:textSize="25sp"
android:gravity="center"
/>
</LinearLayout>
</LinearLayout>
</LinearLayout>

Change the RelativeLayout to LinearLayout that contain two layout you want to have close, and add layout_weight=1 to first LinearLayout with layout_width=0dip like
<LinearLayout
android:id="#+id/tens_view_top"
android:layout_below="#id/divideaftertotal"
android:layout_height="75dp"
android:layout_width="wrap_content"
>
<LinearLayout
android:layout_weight="1"
android:id="#+id/tens_view_left"
android:orientation="vertical"
android:layout_height="wrap_content"
android:layout_width="0dip"
>
<LinearLayout
android:id="#+id/firstcoloumn"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:orientation="vertical"
android:layout_weight="1"
>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:gravity="center"
android:orientation="horizontal"
>
<TextView
android:id="#+id/amount_rupee"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:text="Num1"
android:layout_centerVertical="true"
android:textSize="25sp" />
<TextView
android:id="#+id/multiply_sign"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="X"
android:layout_centerVertical="true"
android:textSize="26sp"
android:layout_toRightOf="#id/amount_rupee"
android:layout_marginLeft="40dp" />
<TextView
android:id="#+id/multiple_digit"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="Num2"
android:layout_centerVertical="true"
android:textSize="25sp"
android:layout_toRightOf="#+id/multiply_sign"
android:layout_marginLeft="40dp" />
</LinearLayout>
<SeekBar
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_below="#+id/multiple_digit"
android:layout_marginTop="8dp"
/>
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_height="100dp"
android:layout_width="wrap_content"
android:background="#FFCCDD"
android:layout_alignParentRight="true">
<TextView
android:id="#+id/amount_rupee"
android:layout_height="fill_parent"
android:layout_width="100dp"
android:text="Num3"
android:layout_centerVertical="true"
android:textSize="25sp"
android:gravity="center"
/>
</LinearLayout>

// try this i have used LinearLayout rather than RelativeLayout
<?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:orientation="vertical"
android:padding="7dp">
<LinearLayout
android:id="#+id/total_top_layout"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:gravity="center"
android:paddingBottom="10dp">
<TextView
android:id="#+id/ammount_view"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_width="0dp"
android:text="First Text Here"
android:textSize="20sp"/>
<EditText
android:id="#+id/total_ammount_input"
android:layout_height="wrap_content"
android:layout_width="150dp"
android:singleLine="true"
android:text="second Text"
android:padding="8dp"
android:gravity="center"/>
</LinearLayout>
<View
android:id="#+id/divideaftertotal"
android:layout_width="match_parent"
android:layout_height="1dp"/>
<LinearLayout
android:id="#+id/tens_view_left"
android:layout_height="wrap_content"
android:layout_width="match_parent">
<LinearLayout
android:id="#+id/firstcoloumn"
android:layout_height="wrap_content"
android:layout_width="0dp"
android:layout_weight="1"
android:orientation="vertical">
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:gravity="center">
<LinearLayout
android:layout_height="match_parent"
android:gravity="center"
android:layout_width="0dp"
android:layout_weight="1">
<TextView
android:id="#+id/amount_rupee"
android:layout_height="wrap_content"
android:layout_width="0dp"
android:layout_weight="1"
android:text="Num1"
android:textSize="25sp" />
<TextView
android:id="#+id/multiply_sign"
android:layout_height="wrap_content"
android:layout_width="0dp"
android:layout_weight="1"
android:text="X"
android:layout_centerVertical="true"
android:textSize="26sp"
android:layout_marginLeft="40dp" />
<TextView
android:id="#+id/multiple_digit"
android:layout_height="wrap_content"
android:layout_width="0dp"
android:layout_weight="1"
android:text="Num2"
android:textSize="25sp"
android:layout_marginLeft="40dp" />
</LinearLayout>
</LinearLayout>
<SeekBar
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_below="#+id/multiple_digit"
android:layout_marginTop="8dp"/>
</LinearLayout>
<TextView
android:id="#+id/amount_rupee"
android:layout_height="match_parent"
android:layout_width="100dp"
android:text="Num3"
android:textSize="25sp"
android:gravity="center"/>
</LinearLayout>
<View
android:id="#+id/divideaftertens"
android:layout_width="match_parent"
android:layout_height="1dp"/>
</LinearLayout>

i am unable to lock some part of the screen while using "Scroll View"

i am implementing one data enter screen with many fields.so that i am using scrolling view in my layout.But i want to draw OK button always.but i am unable to lock the some part of the screen.
i need secreen as:
but i am getting picture as either
or
i am adding my layout code below(as shown in last pic) plesae help me .
<?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:orientation="vertical" >
<ScrollView
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:background="#2E9AFE" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:text="Present Details"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColorHint="#350924"
android:textStyle="bold" />
<TextView
android:id="#+id/tvtv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Present Location"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="#350924"
android:textStyle="bold" />
<ProgressBar
android:id="#+id/progressBar1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" />
<EditText
android:id="#+id/etPreLoc1"
android:layout_width="fill_parent"
android:layout_height="120dp"
android:layout_gravity="center"
android:ems="10"
android:hint="Where are u now?"
android:inputType="textPostalAddress" />
<TextView
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/etPreLoc1"
android:layout_gravity="center"
android:text="Coming By"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="#350924"
android:textStyle="bold" />
<EditText
android:id="#+id/mmsComing"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:ems="10"
android:hint="car/auto/other" />
<TextView
android:id="#+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Vehicle details"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="#350924"
android:textStyle="bold" />
<EditText
android:id="#+id/etDriver"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:ems="10"
android:hint="Driver name/vehicle no"
android:inputType="textPersonName" />
<TextView
android:id="#+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:text="Expected time to reach by:"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="#350924"
android:textStyle="bold" />
<TimePicker
android:id="#+id/timePicker2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginTop="10dp"
android:layout_weight="75" />
</LinearLayout>
</ScrollView>
<Button
android:id="#+id/mmsOk"
android:layout_width="fill_parent"
android:layout_height="64dp"
android:layout_gravity="center"
android:layout_marginBottom="10dp"
android:layout_marginLeft="15dp"
android:layout_marginRight="15dp"
android:layout_marginTop="10dp"
android:layout_weight="25"
android:background="#drawable/blackbutton"
android:text="OK"
android:textColor="#android:color/white"
android:textSize="32dp"
android:textStyle="bold" />
</LinearLayout>

You can do that with a RelativeLayout like that. Just put all you views in the linearlayout inside the scrollview.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ScrollView
android:id="#+id/scrollView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true" >
<Button
android:id="#+id/button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button" />
</LinearLayout>
</RelativeLayout>

Change scrollview height to 0dp and give weight as 1.
Change button layout gravity to bottom instead of center.

Activity background becomes black on ldpi density

I have a simple activity with a few lines. I am testing the app on ldpi density and my problem is that it appears completely black, however
1. It works fine on mdpi and hdpi density
2. I can see in the graphical view of the xml the desired design
Half of the layout is red, the other half is green, and there are texts in the middle.
My code is:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true" >
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:background="#FF0000" //red
android:layout_weight="1"
android:orientation="horizontal" >
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:background="#00FF01" //green
android:layout_weight="1"
android:orientation="horizontal" >
</LinearLayout>
</LinearLayout>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="300dp"
android:layout_height="380dp"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:orientation="horizontal" >
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/bal"
android:layout_width="150dp"
android:layout_height="380dp"
android:gravity="right"
android:orientation="vertical" >
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="right"
android:layout_marginRight="10dp"
android:gravity="right"
android:orientation="horizontal" >
<TextView
android:id="#+id/tv0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:layout_marginRight="20dp"
android:textSize="62dp"
android:text="A" />
<TextView
android:id="#+id/tv1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textSize="62dp"
android:text="B" />
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="right"
android:layout_marginRight="10dp"
android:gravity="right"
android:orientation="horizontal" >
<TextView
android:id="#+id/tv2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:layout_marginRight="20dp"
android:textSize="52dp"
android:text="A" />
<TextView
android:id="#+id/tv3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textSize="52dp"
android:text="B" />
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="right"
android:layout_marginRight="10dp"
android:gravity="right"
android:orientation="horizontal" >
<TextView
android:id="#+id/tv4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:layout_marginRight="20dp"
android:textSize="42dp"
android:text="A" />
<TextView
android:id="#+id/tv5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textSize="42dp"
android:text="B" />
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="right"
android:layout_marginRight="10dp"
android:gravity="right"
android:orientation="horizontal" >
<TextView
android:id="#+id/tv6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:layout_marginRight="20dp"
android:textSize="32dp"
android:text="A" />
<TextView
android:id="#+id/tv7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textSize="32dp"
android:text="B" />
</LinearLayout>
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="150dp"
android:layout_height="380dp"
android:layout_toRightOf="#+id/bal"
android:layout_marginLeft="10dp"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:orientation="vertical" >
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="left"
android:gravity="left"
android:orientation="horizontal" >
<TextView
android:id="#+id/tv8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="20dp"
android:text="A"
android:textColor="#000000"
android:textSize="62dp" />
<TextView
android:id="#+id/tv9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textSize="62dp"
android:text="B" />
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="left"
android:gravity="left"
android:orientation="horizontal" >
<TextView
android:id="#+id/tv10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:layout_marginRight="20dp"
android:textSize="52dp"
android:text="A" />
<TextView
android:id="#+id/tv11"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textSize="52dp"
android:text="B" />
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="left"
android:gravity="left"
android:orientation="horizontal" >
<TextView
android:id="#+id/tv12"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:layout_marginRight="20dp"
android:textSize="42dp"
android:text="A" />
<TextView
android:id="#+id/tv13"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textSize="42dp"
android:text="B" />
</LinearLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="150dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="left"
android:gravity="left"
android:orientation="horizontal" >
<TextView
android:id="#+id/tv14"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:layout_marginRight="20dp"
android:textSize="32dp"
android:text="A" />
<TextView
android:id="#+id/tv15"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textSize="32dp"
android:text="B" />
</LinearLayout>
</LinearLayout>
</RelativeLayout>
</RelativeLayout>
</ScrollView>
if I set android:background="#FFFFFF" to scrollview background, I get a white bg with the black texts.
if I set it to android:background="#000000" (as it is in mdpi and hdpi layouts, but I removed it now) I see nothing just pure blackness, since now both the bg and the texts are black. Same happens when I set no background color to the scrollview.
What can I do?

I really have no idea but it turned out the scrollview was behind the whole thing. I removed it and everything works fine. Strange.