Center two buttons horizontally

This is my solution:

<?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="wrap_content"
    android:layout_centerHorizontal="true">

    <TextView
        android:text="@+id/SomeText"
        android:id="@+id/TextView01"
        android:layout_width="wrap_content" android:layout_height="wrap_content" />

    <LinearLayout
        android:orientation="horizontal"
        android:background="@android:drawable/bottom_bar"
        android:paddingLeft="4.0dip"
        android:paddingTop="5.0dip"
        android:paddingRight="4.0dip"
        android:paddingBottom="1.0dip"
        android:layout_width="fill_parent" android:layout_height="wrap_content"
        android:layout_below="@+id/TextView01">

        <Button
            android:id="@+id/allow"
            android:layout_width="0.0dip" android:layout_height="fill_parent"
            android:text="Allow"
            android:layout_weight="1.0" />

        <Button
            android:id="@+id/deny"
            android:layout_width="0.0dip" android:layout_height="fill_parent"
            android:text="Deny"
            android:layout_weight="1.0" />

    </LinearLayout>
</RelativeLayout>

I know you've already found a solution, but you might also find this useful. The empty TextView used as the center reference can double as padding between the buttons by increasing the dip setting. It also handles screen orientation changes well.

<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:text="Left"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_toLeftOf="@+id/centerPoint" />

    <TextView
        android:id="@+id/centerPoint"
        android:text=""
        android:layout_width="0dip"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true" />

    <Button
        android:id="@+id/button2"
        android:text="Right"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_toRightOf="@+id/centerPoint" />

</RelativeLayout>

Screenshot of the result:

I dont know if you actually found a good answer to this question ever but I achieved it by making a TableRow, setting the width to fill_parent and setting the gravity to center then placing the two buttons inside of it.

    <TableRow android:layout_width="fill_parent"
    android:layout_height="wrap_content" android:gravity="center">
    <Button android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Test" android:width="100dip"></Button>
    <Button android:layout_width="wrap_content" 
        android:text="Test" android:layout_height="wrap_content"
        android:width="100dip"></Button>
</TableRow>