Which layout should i use?

[fahimeh hashemian]

I'm confused. I want to show the map and on below of map show 5 buttons. I use RelativeLayout, but the program just show Product button. Why? I'm confused which layout i use (Linear,Relative,Frame or absolute )!! Please help me. and How can i correct this code?

location.xml:

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
	xmlns:android="http://schemas.android.com/apk/res/android"
	android:id="@+id/frame"
	android:orientation="vertical"
	android:layout_width="fill_parent"
	android:layout_height="fill_parent">
	<com.google.android.maps.MapView
		android:id="@+id/mapView"
		android:apiKey="0cPRv243zM1_S3ydsNg8MJP9_6BfCp642jOhPvQ"
		android:layout_width="fill_parent"
		android:layout_height="fill_parent"
		android:clickable="true" />
	<RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/background"
        android:layout_gravity="bottom"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/button_home"
            style="?android:attr/borderlessButtonStyle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:drawableTop="@drawable/home_icon"
            android:text="@string/button_home"
            android:textColor="@color/text_home"
  			android:layout_toLeftOf="@+id/button_product" />
        
         <Button
            android:id="@+id/button_product"
            style="?android:attr/borderlessButtonStyle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:drawableTop="@drawable/product_icon"
            android:onClick="Product"
            android:text="@string/button_product"
            android:textColor="@color/text_product" />
       
 </RelativeLayout>
 </FrameLayout>