您在问题中已经提到您已删除li
从菜单中。所以这可能会奏效。在这个walker中,u可以在外观->菜单css选项中为类提供选项(在屏幕右上角,单击底部一行的“屏幕选项”-确保选中了“css类”)
class Class_Name_Walker extends Walker_Nav_Menu
{
/**
* Start the element output.
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $item Menu item data object.
* @param int $depth Depth of menu item. May be used for padding.
* @param array $args Additional strings.
* @return void
*/
function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
$indent = ( $depth ) ? str_repeat( "\\t", $depth ) : \'\';
$class_names = $value = \'\';
$classes = empty( $item->classes ) ? array() : (array) $item->classes;
$classes[] = \'menu-item-\' . $item->ID;
$class_names = join( \' \', apply_filters( \'nav_menu_css_class\', array_filter( $classes ), $item, $args ) );
$class_names = $class_names ? \' class="\' . esc_attr( $class_names ) . \'"\' : \'\';
$id = apply_filters( \'nav_menu_item_id\', \'menu-item-\'. $item->ID, $item, $args );
$id = $id ? \' id="\' . esc_attr( $id ) . \'"\' : \'\';
$atts = array();
$atts[\'title\'] = ! empty( $item->attr_title ) ? $item->attr_title : \'\';
$atts[\'target\'] = ! empty( $item->target ) ? $item->target : \'\';
$atts[\'rel\'] = ! empty( $item->xfn ) ? $item->xfn : \'\';
$atts[\'href\'] = ! empty( $item->url ) ? $item->url : \'\';
$atts = apply_filters( \'nav_menu_link_attributes\', $atts, $item, $args );
$attributes = \'\';
foreach ( $atts as $attr => $value ) {
if ( ! empty( $value ) ) {
$value = ( \'href\' === $attr ) ? esc_url( $value ) : esc_attr( $value );
$attributes .= \' \' . $attr . \'="\' . $value . \'"\';
}
}
$item_output = $args->before;
$item_output .= \'<a\'. $attributes .$class_names.\'>\';
$item_output .= $args->link_before . apply_filters( \'the_title\', $item->title, $item->ID ) . $args->link_after;
$item_output .= \'</a>\';
$item_output .= $args->after;
$output .= apply_filters( \'walker_nav_menu_start_el\', $item_output, $item, $depth, $args );
}
/**
* @see Walker::end_el()
* @since 3.0.0
*
* @param string $output Passed by reference. Used to append additional content.
* @param object $item Page data object. Not used.
* @param int $depth Depth of page. Not Used.
*/
function end_el( &$output, $item, $depth = 0, $args = array() ) {
$output .= "\\n";
}
}
此walker将向标记添加li类。在您的主题文件(wp\\u nav)中,您必须添加
custom walker.
<?php wp_nav_menu( array(\'walker\' => new Class_Name_Walker ) );?>
EDIT :
要将导航活动类添加到当前菜单项,请将此额外过滤器添加到函数中。php
add_filter(\'nav_menu_css_class\' , \'special_nav_class\' , 10 , 2);
function special_nav_class($classes, $item){
if( in_array(\'current-menu-item\', $classes) ){
$classes[] = \'nav-active \';
}
return $classes;
}