Ticket #15386: my-list-table-plugin.php

<?php
/*
Plugin Name: My List Table Plugin
Author: scribu
Version: 1.0
*/

class My_Admin_Screen {
        function __construct() {
                add_filter( 'get_list_table_My_List_Table', array( $this, 'register_list_table' ) );
                add_action( '_admin_menu', array( $this, '_init' ) );
        }

        function register_list_table( $class ) {
                require_once dirname( __FILE__ ) . '/my-list-table-class.php';

                return $class;
        }

        function _init() {
                $screen_id = add_menu_page( 'Test', 'Test', 'manage_options', 'test', array( $this, 'display' ) );

                add_action( "load-$screen_id", array( $this, '_init_list_table' ) );
        }

        // The list table class has to be instantiated before screen_meta() is called
        function _init_list_table() {
                $this->list_table = get_list_table('My_List_Table');
        }

        function display() {
                echo "<div class='wrap'>\n";
                screen_icon();
                echo "<h2>Test</h2>\n";

                $this->list_table->prepare_items();
                $this->list_table->display();

                echo "</div>\n";
        }
}

new My_Admin_Screen();