Plugin example of UM Activity wall for a post. Place this file in the plugin folder and activate the plugin. Then place the shortcode [ultimatemember_activity_page] inside a post or page. Requires UM and UM Activity.

um-activity-page.php

<?php
/*
Plugin Name: UM - Social Activity Page
Description: Page example of UM Social Activity
Version: 0.1
Author: EkAndreas
Author URI: http://www.andreasek.se/
*/

class UM_Activity_Page {

    function __construct()
    {
        add_action( 'um_activity_post_insert_tools', array( &$this, 'insert_post_parent' ) );
        add_filter( 'um_activity_insert_post_args', array( &$this, 'insert_post_args' ) );

        add_shortcode( 'ultimatemember_activity_page', array( &$this, 'shortcode' ) );
    }

    static function insert_post_parent( $args )
    {
        global $um_activity;

        if (isset( $um_activity->shortcode->args['post_parent'] )) {
            $post_parent = (int) $um_activity->shortcode->args['post_parent'];
            echo '<input type="hidden" name="post_parent" value="' . $post_parent . '" />';
        }

    }

    static function insert_post_args( $args )
    {

        if (isset( $_POST['post_parent'] )) {
            $args['post_parent'] = (int) $_POST['post_parent'];
        }

        return $args;

    }

    static function shortcode( $atts ) {

        add_filter( 'um_activity_wall_args', function( $args ) { $args['post_parent'] = get_the_ID(); return $args; } );
        return do_shortcode( '[ultimatemember_activity post_parent=' . get_the_ID() . ']' );

    }

}

new UM_Activity_Page();