Overview
The Application toolbar, or app bar, is found at the topmost area of an application page below the shell bar. As the most important design element in the app screen, it provides visual structure in a familiar form factor, helps users understand how to interact with that app, and provides access to important actions in a predictable way.
Application Toolbar - Collapsed
Application Toolbar - Expanded
Anatomy
Usage
Use the Application toolbar for file or document-based tools and apps.
Or as an alternative to the Header Toolbar. That's because the app bar uses a classic File, Edit, and View configuration; whereas the Header toolbar has a different structure not necessarily dependent on file creation.
Recommended
- You are dealing with the creation, editing, or management of a file, document, object, or equivalent artifact.
- You have a large group of commands and features that exceed the capacity of the Header toolbar.
Not recommended
- Your app doesn’t have enough commands to at least need the File, Edit, and View menus. Use the Header toolbar instead.