# Presentation ## Discussion [Action sheets](/design/Human-Interface-Guidelines/action-sheets) An action sheet is a modal view that presents choices related to an action people initiate. [Alerts](/design/Human-Interface-Guidelines/alerts) An alert gives people critical information they need right away. [Page controls](/design/Human-Interface-Guidelines/page-controls) A page control displays a row of indicator images, each of which represents a page in a flat list. [Panels](/design/Human-Interface-Guidelines/panels) In a macOS app, a panel typically floats above other open windows providing supplementary controls, options, or information related to the active window or current selection. [Popovers](/design/Human-Interface-Guidelines/popovers) A popover is a transient view that appears above other content when people click or tap a control or interactive area. [Scroll views](/design/Human-Interface-Guidelines/scroll-views) A scroll view lets people view content that’s larger than the view’s boundaries by moving the content vertically or horizontally. [Sheets](/design/Human-Interface-Guidelines/sheets) A sheet helps people perform a scoped task that’s closely related to their current context. [Windows](/design/Human-Interface-Guidelines/windows) A window presents UI views and components in your app or game. ## Topics [Action sheets](/design/Human-Interface-Guidelines/action-sheets) An action sheet is a modal view that presents choices related to an action people initiate. [Alerts](/design/Human-Interface-Guidelines/alerts) An alert gives people critical information they need right away. [Page controls](/design/Human-Interface-Guidelines/page-controls) A page control displays a row of indicator images, each of which represents a page in a flat list. [Panels](/design/Human-Interface-Guidelines/panels) In a macOS app, a panel typically floats above other open windows providing supplementary controls, options, or information related to the active window or current selection. [Popovers](/design/Human-Interface-Guidelines/popovers) A popover is a transient view that appears above other content when people click or tap a control or interactive area. [Scroll views](/design/Human-Interface-Guidelines/scroll-views) A scroll view lets people view content that’s larger than the view’s boundaries by moving the content vertically or horizontally. [Sheets](/design/Human-Interface-Guidelines/sheets) A sheet helps people perform a scoped task that’s closely related to their current context. [Windows](/design/Human-Interface-Guidelines/windows) A window presents UI views and components in your app or game. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)