---
title: "Landmarks: Extending horizontal scrolling under a sidebar or inspector"
framework: swiftui
role: sampleCode
role_heading: Sample Code
path: swiftui/landmarks-extending-horizontal-scrolling-under-a-sidebar-or-inspector
---

# Landmarks: Extending horizontal scrolling under a sidebar or inspector

Improve your horizontal scrollbar’s appearance by extending it under a sidebar or inspector.

## Overview

Overview The Landmarks app lets people explore interesting sites around the world. Whether it’s a national park near their home or a far-flung location on a different continent, the app provides a way for people to organize and mark their adventures and receive custom activity badges along the way. This sample demonstrates how to extend horizontal scrolling under a sidebar or inspector. Within each continent section in LandmarksView, an instance of LandmarkHorizontalListView shows a horizontally scrolling list of landmark views. When open, the landmark views can scroll underneath the sidebar or inspector.

Configure the scroll view To achieve this effect, the sample configures the LandmarkHorizontalListView so it touches the leading and trailing edges. When a scroll view touches the sidebar or inspector, the system automatically adjusts it to scroll under the sidebar or inspector and then off the edge of the screen. The sample adds a Spacer at the beginning of the ScrollView to inset the content so it aligns with the title padding: ScrollView(.horizontal, showsIndicators: false) {     LazyHStack(spacing: Constants.standardPadding) {         Spacer()             .frame(width: Constants.standardPadding)         ForEach(landmarkList) { landmark in             //...         }     } }

## See Also

### App features

- [Landmarks: Applying a background extension effect](swiftui/landmarks-applying-a-background-extension-effect.md)
- [Landmarks: Refining the system provided Liquid Glass effect in toolbars](swiftui/landmarks-refining-the-system-provided-glass-effect-in-toolbars.md)
- [Landmarks: Displaying custom activity badges](swiftui/landmarks-displaying-custom-activity-badges.md)