根据user_agent加载视图

扩展CI_Loader类

<?php

class MY_Loader extends CI_Loader
{
    function __construct()
    {
        parent::__construct();
    }

    public function view($view, $vars = array(), $return = FALSE)
    {
        $CI =& get_instance();
        $CI->load->library('user_agent');
        $view_path = $CI->agent->is_mobile() ? 'mobile/' : 'default/';
        parent::view($view_path . $view, $vars, $return);
    }
}

end