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All other times, use a translucent background. Use an opaque background when a window contains more than one sidebar, and when using a sidebar in a panel or preferences window. See Column Views.Īpply the correct background appearance to a sidebar. If your app requires the navigation of deeply nested objects, consider implementing a column view. In some cases, a second sidebar may be warranted when a data hierarchy is deeper than two levels. In general, refrain from exposing more than two levels of hierarchy within a sidebar. The Finder sidebar uses titles to organize the user’s favorite locations ( Favorites), devices ( Devices), shared drives ( Shared), and tag-based searches ( Tags). Sidebars don’t generally have headers like table views do, but they sometimes include titles.

Use titles to form logical groupings of related items. For example, iTunes lets people navigate and manage media files like songs, podcasts, and movies using libraries and playlists, and without ever needing to interact with the file system.

When it comes to the minutiae of file management, a sidebar abstracts files into app-specific elements and containers.

The user can select one to access its contents or results in the main portion of the window.įor related guidance, see Split Views, Table Views, and Outline Views.Ĭonsider using a sidebar to let people interact with file-based data without exposing them to the file system. For example, the sidebar in a Finder window includes a list of frequently accessed locations and tag-based search shortcuts. A sidebar typically consists of a table view or outline view that lets people navigate and select items to act upon in the main portion of the window. A sidebar - technically known as a source list - resides on one side of a window and is usually separated from the rest of the window by a horizontal splitter, which is often movable.