actions property
A list of Widgets to display in a row after the title widget.
Typically these widgets are IconButtons representing common operations. For less common operations, consider using a PopupMenuButton as the last action.
The actions become the trailing component of the NavigationToolbar built by this widget. The height of each action is constrained to be no bigger than the toolbarHeight.
To avoid having the last action covered by the debug banner, you may want to set the MaterialApp.debugShowCheckedModeBanner to false.
If this is null or empty and automaticallyImplyActions is set to true, the AppBar will imply an appropriate widget. For example, if the AppBar is in a Scaffold that also has an end Drawer, the Scaffold will fill this widget with an IconButton that opens the end drawer (using Icons.menu).
This property is used to configure an AppBar.
Implementation
final List<Widget>? actions;