//with tooltip and round border corner(if you also needed those)
actions: [
PopupMenuButton<int>(
tooltip: "", //Adding tooltip
shape: RoundedRectangleBorder( //Adding Round Border
borderRadius: BorderRadius.all(
Radius.circular(20.0),
),
),
itemBuilder: (context) => [
PopupMenuItem(
child: Text("Settings"),
value: 1,
),
PopupMenuDivider( //Adding Divider
height: 0,
),
PopupMenuItem(
child: Text("FAQ"),
value: 2,
),
PopupMenuDivider( //Adding Divider
height: 0,
),
PopupMenuItem(
child: Text("Contact Us"),
value: 2,
),
],
),
SizedBox(width: 10),
],