selectstore.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/three_buttons_activity"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".SelectStore">

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center_vertical">

        <TextView
            android:id="@+id/txtViewHeading"
            android:text="@string/heading_select_store"
            android:textStyle="bold"
            android:textColor="#000"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:height="35dp"
            android:gravity="center_vertical|center_horizontal"
            android:paddingTop="10dp" />

    </RelativeLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:paddingTop="45dp"
        android:paddingLeft="16dp"
        android:paddingRight="16dp"
        android:paddingBottom="16dp">

        <ListView
            android:id="@+id/android:list"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentTop="true"
            android:paddingBottom="20dp"
            android:background="@drawable/border_listview"
            android:fastScrollEnabled="true"
            android:layout_above="@+id/save">
        </ListView>


        <Button
            android:id="@+id/save"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            android:layout_gravity="center_vertical|center_horizontal"
            android:background="@color/btnBackColor"
            android:text="NEXT"
            android:textAllCaps="false"
            android:textColor="@color/btnTextColor"
            android:layout_centerInParent="true" />
    </RelativeLayout>

</android.support.design.widget.CoordinatorLayout>