解决导航栏菜单在子路由中无法高亮问题 [ 2.0 版本 ]

重新写Nav class Nav extends \yii\bootstrap\Nav，

重写isItemActive($item)方法

protected function isItemActive($item)
{
    if (isset($item['url']) && is_array($item['url']) && isset($item['url'][0])) {
        $route = $item['url'][0];
        if ($route[0] !== '/' && \Yii::$app->controller) {
            $route = \Yii::$app->controller->module->getUniqueId() . '/' . $route;
        }
//            if (ltrim($route, '/'   ) !== $this->route) {
//                return false;
//            }
        $_route = ltrim($route, '/');
        if (strpos($this->route, $_route)===0){
            if($_route == $this->route){}else{
                if (strpos($this->route,$_route."/")===0){}else{
                    return false;
                }
            }
        }else{
            return false;
        }
        unset($item['url']['#']);
        if (count($item['url']) > 1) {
            $params = $item['url'];
            unset($params[0]);
            foreach ($params as $name => $value) {
                if ($value !== null && (!isset($this->params[$name]) || $this->params[$name] != $value)) {
                    return false;
                }
            }
        }

        return true;
    }

    return false;
}