使用自定义插件wordpress将页面模板添加到自定义页面

Question

I am new to developing the wordpress plugin. I am developing a plugin and I have succeeded in creating a new page whenever the plugin is activated but I want to add a custom php template file to that page. Thats means on activation I want to create a custom page with a custom template. Is it possible to do?

To create a new page I have used this code but could not find anything on adding the template thing:

register_activation_hook(__FILE__,'my_plugin_install'); 
function my_plugin_install() {
    global $wpdb;
    $the_page_title = 'Custom Cart';
    $the_page_name = 'cart';
    delete_option("Custom Cart");
    add_option("Custom Cart", $the_page_title, '', 'yes');
    delete_option("cart");
    add_option("cart", $the_page_name, '', 'yes');
    delete_option("my_plugin_page_id");
    add_option("my_plugin_page_id", '0', '', 'yes');
    $the_page = get_page_by_title( $the_page_title );
    if ( ! $the_page ) {
        $_p = array();
        $_p['post_title'] = $the_page_title;
        $_p['post_content'] = "This text may be overridden by the plugin. You shouldn't edit it.";
        $_p['post_status'] = 'publish';
        $_p['post_type'] = 'page';
        $_p['comment_status'] = 'closed';
        $_p['ping_status'] = 'closed';
        $_p['post_category'] = array(1);
        $the_page_id = wp_insert_post( $_p );
    }
    else {
        $the_page_id = $the_page->ID;
        $the_page->post_status = 'publish';
        $the_page_id = wp_update_post( $the_page );
    }
    delete_option( 'my_plugin_page_id' );
    add_option( 'my_plugin_page_id', $the_page_id );
}

Answer 1

It's a little bit tricky. But we have article for you. It can be done. Just try http://www.wpexplorer.com/wordpress-page-templates-plugin/