public function setup_nav( $main_nav = array(), $sub_nav = array() ) {

		// Determine user to use.
		if ( bp_displayed_user_domain() ) {
			$user_domain = bp_displayed_user_domain();
		} elseif ( bp_loggedin_user_domain() ) {
			$user_domain = bp_loggedin_user_domain();
		} else {
			return;
		}

		$access       = bp_core_can_edit_settings();
		$slug         = bp_get_friends_slug();
		$friends_link = trailingslashit( $user_domain . $slug );

		// Add 'Friends' to the main navigation.
		$count = friends_get_total_friend_count();
		$class = ( 0 === $count ) ? 'no-count' : 'count';

		$main_nav_name = sprintf(
			/* translators: %s: Friend count for the current user */
			__( 'Friends %s', 'buddypress' ),
			sprintf(
				'<span class="%s">%s</span>',
				esc_attr( $class ),
				bp_core_number_format( $count )
			)
		);

		$main_nav = array(
			'name'                => $main_nav_name,
			'slug'                => $slug,
			'position'            => 60,
			'screen_function'     => 'friends_screen_my_friends',
			'default_subnav_slug' => 'my-friends',
			'item_css_id'         => $this->id
		);

		// Add the subnav items to the friends nav item.
		$sub_nav[] = array(
			'name'            => _x( 'Friendships', 'Friends screen sub nav', 'buddypress' ),
			'slug'            => 'my-friends',
			'parent_url'      => $friends_link,
			'parent_slug'     => $slug,
			'screen_function' => 'friends_screen_my_friends',
			'position'        => 10,
			'item_css_id'     => 'friends-my-friends'
		);

		$sub_nav[] = array(
			'name'            => _x( 'Requests', 'Friends screen sub nav', 'buddypress' ),
			'slug'            => 'requests',
			'parent_url'      => $friends_link,
			'parent_slug'     => $slug,
			'screen_function' => 'friends_screen_requests',
			'position'        => 20,
			'user_has_access' => $access
		);

		parent::setup_nav( $main_nav, $sub_nav );
	}