property actions

Widgets to display after the title widget.

Typically these widgets are IconButtons representing common operations. For less common operations, consider using a PopupMenuButton as the last action.

For example:

return new Scaffold(
  appBar: new AppBar(
    title: new Text('Hello World'),
    actions: <Widget>[
      new IconButton(
        icon: new Icon(Icons.shopping_cart),
        tooltip: 'Open shopping cart',
        onPressed: _openCart,
      ),
    ]
  ),
  body: _buildBody(),
);