Exploring the Contrasts: AppBar vs Toolbar in MUI v5

Can you explain the variations between AppBar and Toolbar in MUI? I know that AppBar defaults to 'column' flex direction, while Toolbar defaults to 'row'. Are there any other distinctions? Additionally, why do MUI docs show examples of AppBar with a nested Toolbar? I personally only use Toolbar and don't notice any distinction. https://i.sstatic.net/kxFoP.png

Answer №1

From what I understand, the sole purpose of AppBar is to act as a container that allows you to specify its position relative to the entire screen (e.g. sticky positioning) and also to define the background color which automatically adjusts based on whether the mode is light or dark.

The reason for keeping it separate is that you may want to utilize ToolBar in contexts where it's not serving as the primary navigation. For example, a series of buttons above a table. When used within the page content like this, you wouldn't want the background color from the theme to apply, nor would you want it to be positioned based on the entire screen since it's inline.

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