Button under ListView not visible in Android

For this the button and the listview should be in a same linearlayout, if all views are in relative layout, add the listview and button to a linear layout and give listview weight as 1, this worked for me.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_shipping_address"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/background_all"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.reallymake.android.pottery.ShippingAddressActivity">

<Button
    android:id="@+id/button1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@+id/textView9"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="13dp"
    android:background="@drawable/button_shape"
    android:text="@string/ok"
      />

   <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@+id/btn_add_new_address"
    android:orientation="vertical">


    <ListView
        android:id="@+id/lv_addresses"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_below="@+id/list"
        android:layout_marginTop="14dp"
        android:layout_weight="1" />

    <Button
        android:id="@+id/btn2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/lv_addresses"
        android:layout_marginTop="14dp"
        android:background="@drawable/button_shape"
        android:text="@string/proceed" />
</LinearLayout>

This is happening because ListView has height set to wrap_content, which makes it extend to accommodate all items leaving no space on the screen for the button. You can use relative layout setting the button along the bottom and then the listview to occupy the remaining space:

<?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" >

<Button
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Button"
    android:layout_alignParentBottom="true" />

<ListView
    android:id="@android:id/list"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:cacheColorHint="#00000000"
    android:drawSelectorOnTop="false"
    android:layout_above="@id/button1" />

</RelativeLayout>

List view takes the full page. Try to give desired weight to the elements to your code. Use this code,

<?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" >

<ListView
    android:id="@android:id/list"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:cacheColorHint="#00000000"
    android:drawSelectorOnTop="false"
    android:layout_weight="5" />

<Button
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Button"
    android:layout_weight="1" />

</LinearLayout>

I have added this line.............. android:weight="1" .......... within the list view as below

 <?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" >

<ListView
    android:id="@android:id/list"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:cacheColorHint="#00000000"
    android:drawSelectorOnTop="false" 
    android:weight="1" 
/>

<Button
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Button" />

</LinearLayout>