Flutter UI Essentials — AppBar

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Flutter app bar is a Material Design app bar. By default, all Material widgets use Material 2. An app bar contains Toolbar and potentially other widgets, such as a TabBar and a FlexibleSpaceBar. There may be one or more common actions with IconButtons in an app bar.

With Material 3, we have both new and updated widgets in Flutter. AppBar is one of them. There are new colors, elevation, and layout with this…